HOME ESR EXPERIMENTS LABS etc

E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028 E0038

Nuclear hyperfine mixing in 229Th89+, all entries  Not logged in

Find |  Login |  Help

New entries since: Thu Jan 1 01:00:00 1970

Full | Summary | Threaded     -- All entries -- Last day Last 3 Days Last week Last month Last 3 Months Last 6 Months Last Year -- Category -- Analysis Calibration DAQ Laser General Runs Detectors Accelerator  233 Entries

Goto page 1, 2, 3 ... 10, 11, 12

ID Date Author Category Subject Text   62   Sat Apr 2 01:27:25 2022 Jan Glorius Runs test runs 02.04.2022 Beam settings: primary beam  copper stripper      78   Sun Apr 3 12:31:10 2022 Rui-Jiu Chen, Yuri, Carsten, Ragan Runs Measurement of beam with different circles Parameters of NTCAP:   1. IQ rate 20 MSamples/s  6x    86   Mon Apr 4 09:10:44 2022 Ragan, Yuri, Rui-Jiu Runs Measurement NTCAP is taking data with the beam with a stop at manipulation 5 (taking all the fragments).      104   Tue Apr 5 23:55:11 2022 Carsten Runs Long time measurment with NTCAP Settings: Center: 2242.5MHz RefLevel: -25dB      110   Wed Apr 6 14:52:29 2022 Rodolfo Runs Scraping the ion beam We are T-scraping the ion beam.       121   Thu Apr 7 02:32:29 2022 all on shift Runs First Scans 322-320nm Laser scanning from 322-320 steps 0.01nm/s DAQ1: lxg1927:/data.local2/BeamTimeTh22/ DAQ2: lxg0155:/data.local2/E142/      151   Fri Apr 8 06:53:29 2022 Ragan Runs NTCAP data taking NTCAP is taking data since 07.04.2022 23:53:47 Carrier Frequency: 242.2 M      155   Fri Apr 8 09:32:32 2022 Ragan Runs NTCAP stopped Since there is no beam, NTCAP is stopped. Carrier Frequency: 242.2 M      157   Fri Apr 8 09:39:04 2022 Ragan Runs NTCAP started Carrier Frequency: 242.2 M IQ Rate (S/s): 10 M Reference level (dBm): -30      158   Fri Apr 8 10:44:55 2022 Ragan, Yuri, Danyal, Sergey Runs NTCAP stopped NTCAP is stopped. Sergey will now set an ion bunch instead of two in the ESR.      161   Fri Apr 8 12:04:13 2022 Ragan Runs NTCAP started NTCAP is started for the data taking. Carrier Frequency: 242.02 M      166   Fri Apr 8 15:39:36 2022 all Runs first data after timing set up started taking data again started at 15:40        181   Sat Apr 9 06:25:22 2022 Max, Kristian Runs morning shift runs DAQ1: lxg1927:/data.local2/BeamTimeTh22/ DAQ2: lxg0155:/data.local2/E142/ LMD file name DAQ1:229Thor      183   Sat Apr 9 13:45:42 2022 Max, Kristian Runs first scans with LV problem solved! This is the first time with LV buffer problem solved (see Elog ID: 184). Before the PMT signals were out of sync with the wavelength      185   Sat Apr 9 15:47:21 2022 Carsten, Rodolfo, Sarper, Patrick Runs Afternoon and night shift runs After the morning shift, we got new increment (nm) for the laser scanning. We are now scanning 2 nm of wavelength range in 5 big steps (5      195   Sun Apr 10 06:39:16 2022 Kristian, Marek, Max Runs runs morning shift 10.04. These are the measurement runs of the morning shift (10.04.).      200   Sun Apr 10 15:16:19 2022 Carsten, Rodolfo, Sarper Runs Runs afternoon shifts 10.04 These are the measurement runs of the afternoon shift (10.04.).      203   Sun Apr 10 22:47:05 2022 Patrick, Volker, Prannay, Danyal, Alexandre, Sebastian, Kristian Runs Runs night shift 10.04 + morning shift 11.04 These are the measurement runs of the night shift (10/11.04.).      210   Mon Apr 11 14:45:11 2022 Paul, Konstantin, Sarper, David Runs Afternoon shift runs 11.04 We continue scan the new wavelength scan range is  322.41 - 322.00 nm       215   Tue Apr 12 04:43:29 2022 Alexandre, Kristian, Sebastian Runs 322.01 - 321.60 nm We scan the wavelength scan range is  322.01 - 321.60 nm       223   Wed Apr 13 14:29:04 2022 Carsten, Rodolfo, Sarper, David, Pierre-Michel, Max, Sebastian Runs Afternoon - morning shift runs 13.+14.04. Changed the wavelength scan range from [B]321.62 - 321.10 nm[/B] to [B][B]321.12 - 320.60[/B] nm[/B] after one scan.      230   Thu Apr 14 17:47:55 2022 Carsten, Rodolfo, Konstantin, Sarper Runs Afternoon shift runs 14.04 changing the wavelength scan range The new scan range is changed from [B]321.12 - 320.60 nm to 320.62 - 320.10 nm[/B]      232   Thu Apr 14 22:44:40 2022 Patrick, Simon, Danyal, Max Runs Runs night shift 14./15.04. Runs of the night shift. The wavelength range is 320.62 - 320.10 nm.      236   Sat Apr 16 04:19:05 2022 Patrick, Simon, Alex, Sarper Runs Runs night + morning shifts 16.04. Runs of the night shift 16.04. after changing the wavelength range. The new range is 320.12 - 319.859 nm. The step size was decreased      1   Mon Jul 26 17:15:47 2021 Rodolfo Laser Quanta Ray - Water leak On Thursday afternoon (22.07.2021) a water connector has broken and water has been spilled in the laser head.       2   Mon Jul 26 17:58:52 2021 Rodolfo Laser Water Filters The water filters (deioninzing and particle) have been replaced.       4   Mon Aug 2 10:54:44 2021 Rodolfo Laser Quanta Ray - Water leak in the power supply After fixing the broken water connector in the laser head a new water leak appeared in the Quanta-Ray power supply.       11   Thu Mar 3 13:50:45 2022 Rodolfo Laser Dye cell cracket The "20 mm" dye cell used for the Oscillator and Pramplifier got damage. I supposed it was produced by the pump beam hitting on      13   Thu Mar 3 17:34:42 2022 Rodolfo Laser Pump Laser We have issues with our Pump Laser (Spectra Physics - Quanta Ray Pro). After the service made on mid Dezember (2021) the laser does      14   Thu Mar 3 21:39:21 2022 Rodolfo Laser Dye solution, DCM in Ethanol and DMSO I have prepared a new dye solution of DCM in Ethanol and DMSO (1:1). The concentration of the "oscillator + preamplifier" is 0,3      33   Thu Mar 24 16:59:35 2022 Rodolfo Laser Photodiode signal SO Fast Photodiode signal at the "SO-Bogen" (South-east arc).      35   Fri Mar 25 14:31:24 2022 Rodolfo Laser Photodiode signal SO in the Messhütte Measured at the Panel "Messhütte - Laserhütte", BNC "Fast PD / SO".      36   Tue Mar 29 12:01:08 2022 Rodolfo Laser Laser targets I have installed two targets* (size: 2 inches) to monitor the position of the laser beam.      38   Tue Mar 29 21:37:13 2022 Rodolfo Laser Pump Laser The gold "reflectors and end plates" of our pump laser (Quanta-Ray PRO) have been exchanged by new ones.      80   Sun Apr 3 13:05:08 2022 Carsten Laser Distance of Partilce detecotrs wr.t. to electron cooler As of Yuris post in the elog the positions (Info from H. Weick):      82   Sun Apr 3 18:41:11 2022 Konstantin and Rodolfo Laser Beam Position Stabilization We (Konstantin and I) have optimized the TEM "laser-beam position stabilization".      101   Tue Apr 5 20:16:13 2022 Rodolfo Laser Discriminator for HF reference signal For the laser trigger we need to generate a few ns NIM-puls from the HF reference signal. Therefore we (Wilfried, Konstantin and me)      102   Tue Apr 5 20:58:53 2022 Wilfried Laser Trigger for Laser Electronic for the timing of the laser puls optimized. The problem with the broad photodiode histograms is solved.      118   Thu Apr 7 00:15:11 2022 Patrick Laser Laser timing adjusted We have adjusted the laser timing using PMT-middle. Bunching freq. is 3.90362 MHz.      120   Thu Apr 7 01:19:05 2022 Patrick Laser Laser scanning We did some laser scans. The wavemeter shows spikes during scans. This may be just while the frequency changes. See picture.      136   Thu Apr 7 11:11:31 2022 Max, Sebastian Laser dye changed, pulse energy measurements We changed the dye at 10am. We increased the pump power for the dye Laser      145   Fri Apr 8 00:06:37 2022 Patrick Laser Connection to the laser pc To login to the laser pc use the command xfreerdp -g 1920x1080 -u atplaser atppc023.campus.gsi.de      148   Fri Apr 8 02:14:05 2022 Wilfried Laser Laser timings adjusted Since we use the middle window as a reference for the laser pulse timing, the fact that the window is 2.25 m behind the target has      149   Fri Apr 8 03:54:39 2022 Patrick Laser Q-switch window The solution of increasing the Q-switch window from 2us to 5us described in [I]ID:148[/I] fulfills its purpose, but the window is unstable.      152   Fri Apr 8 08:17:52 2022 Sebastian Laser Laser Ext Trig is working We (Max, Kristian, Danyal, me) fixed the "external trigger" problem.      160   Fri Apr 8 11:16:57 2022 Kristian Laser Wavemeter We changed the fiber to the wavemeter. The third fiber worked best and we could operate the WM at low exposure times, i.e., below      180   Sat Apr 9 05:26:25 2022 Patrick Laser Wavemeter The wavemeter still shows large spikes from time to time. The exposure time is still at 34ms.      182   Sat Apr 9 06:42:23 2022 Kristian Laser Laser step size We changed the laser step size to 0.002 nm which corresponds to 5.75 GHz.      186   Sat Apr 9 16:55:19 2022 Rodolfo Laser   16:15 I have changed the dye (of both oscillator and amplifier).      188   Sat Apr 9 19:09:57 2022 Rodolfo Laser Optimization - Resonator of dye laser I have tuned a bit the resonator of the dye laser.       196   Sun Apr 10 08:53:26 2022 Kristian, Max Laser Timing verified timing is still good. we checked the relative timing between laser      197   Sun Apr 10 11:11:18 2022 Kristian, Max Laser additional WM readout since the WM readout still does not work reliably, I started a python script at atppc023 that saves timestamp and wavemeter frequency.      202   Sun Apr 10 15:29:53 2022 Rodolfo Laser Status - Laser system We have checked the laser system. - The pump laser has ~ 23Mio shots. The total      208   Mon Apr 11 11:05:35 2022 Sebastian, Kristian Laser Check laser power we checked the UV laser power at 10:15 am. It was only 8.5 - 9 mJ. Pumping power was 460 mJ, which is the maximum output of the      211   Mon Apr 11 18:46:31 2022 Rodolfo, Sarper and Konstantin Laser Alignment-check We cross-checked the laser-ion alignment. The horizontal position was optimized. However,      212   Mon Apr 11 18:57:18 2022 Rodolfo Laser New flashlamps We (Sarper, Konstantin and me) have changed the old flashlamps (with ~ 26 Mio. shots) by new "fresh" ones. We have also exchange      213   Mon Apr 11 22:14:51 2022 Konstantin, Sarper Laser Changing of the wavelength range It is planned to change the scan range of the laser wavelength from 322.41 - 322.0 nm to 322.01 - 321.6 nm @ 4 a.m.       220   Tue Apr 12 15:05:56 2022 Rodolfo Laser Laser status We have checked the laser power at 14:15 * - Pump energy after Q-Ray @ 532nm: 559 mJ.      224   Wed Apr 13 15:41:29 2022 Rodolfo & Sarper Laser Laser status We have checked the power of the laser and optimized it "a bit".      231   Thu Apr 14 19:46:46 2022 Sarper & Konstantin & Rodolfo Laser Laser power We checked the laser power before starting the new scan range.      234   Fri Apr 15 12:53:25 2022 Max, Danyal Laser checked laser pulse energy after change in wavelength range previous scan range:  the laser pulse energy @ 320.62 nm  was ~11 mJ       235   Fri Apr 15 20:43:18 2022 Konstantin Laser Dye changed Dye of the laser system has been changed. UV laser power increased from ~8 mJ to 11 mJ pulse energy.      237   Wed Apr 20 10:09:50 2022 Rodolfo Laser Optic with spots The average energy produced by the laser along the beamtime was about 10 mJ/puls. After about two weeks of beamtime some of the optics,      3   Wed Jul 28 13:31:22 2021 Rodolfo General Air filters Filters (Hepa-) inside the flow boxes have been replaced.      Draft   Wed Sep 8 21:44:55 2021 Rodolfo General Preparation [TABLE border="1"] [B]Status[/B]|[B]Arbeitspaket[/B]|[COLOR=chocolate][B]Kommentare[/B][/COLOR] |-      29   Wed Mar 23 15:38:15 2022 Carsten General Not all lights in the ESR can be switched off Three of the lights in the ESR cannot be switched off. It seems that these lights are now "emergency lights" (with battery?). We will need to      63   Sat Apr 2 05:08:00 2022 Kristian General Morning shift I see no updates in the log. Is the morning shift taking place?      64   Sat Apr 2 10:22:21 2022 Rui-Jiu Chen, Ragan General Beam is in the ESR Primary beam is in the ESR now. Markus and the team are tuning the ESR.      106   Wed Apr 6 08:31:54 2022 Danyal & Regina General ESR had some errors Regina noticed that the ESR was "red"  This means that there are some errors.       131   Thu Apr 7 08:14:03 2022 Yuri & Danyal General 229Th89+ line in Schottky GLOBAL calculations for the "content" of the Th line in the Schottky spectrum (380 MeV/u exit energy, equilibrium charge      138   Thu Apr 7 14:04:36 2022 Paul Indelicato General no beam until 17:00 10:10  There is a problem with the UNILAC. The repair will take several hours. (4 hrs?)      179   Sat Apr 9 05:00:11 2022 Carsten General Draft Docs and cheat sheet Please check the attached files, and correct or enhance them.      207   Mon Apr 11 10:31:07 2022 Kristian, Sebastian, Alexandre, Danyal, Paul General new laser wavelength scan range 322.41 - 322.00 nm new wavelength scan range is  322.41 - 322.00 nm       214   Mon Apr 11 22:33:16 2022 Carsten General Backup of data to the external RAID disks        222   Tue Apr 12 21:56:54 2022 Volker, David, Pierre-Michel & Danyal, Alexandre, Sebastian General new laser wavelength scan range 321.62 - 321.10 nm New wavelength scan range is [B]321.62 - 321.10 nm[/B]. Before the new scan range (compare old scan range in [URL=https://elog.gsi.de/esr/E142/215]      233   Fri Apr 15 12:42:18 2022 Max, Danyal, Carsten, Konstantin, Patrick, Simon General laser wavelength range changed: 320.12 - 319.60 nm Runs of the morning/afternoon/night shift. The wavelength range is now 320.12 - 319.60      84   Mon Mar 25 06:22:12 143 Ken Ueberholz Detectors XUV-Detector Rates Count rates were measured for the XUV- detector for a full circle: Cathode: -5V, shields: 0V, main coil 8A,      8   Thu Oct 14 10:21:46 2021 Rodolfo Detectors Dismounting Cu-Mirror We have dismounted the parabolic Cu-Mirror at ESR on 13.10.2021       12   Thu Mar 3 17:21:26 2022 Rodolfo Detectors MgF2 Windows New reentrance viewports made of MgF2 have been installed at the ESR "Optical Detection Region". In the middle the old window (also      17   Wed Mar 16 12:04:40 2022 Kristian Detectors HV cable to particle detector South Checked HV cable to particle detector south. Label is HV2 Scraper.       28   Wed Mar 23 11:20:55 2022 Simon Detectors PMT operating voltages During the testing of the PMTs the following operating voltages were applied:      30   Wed Mar 23 16:16:42 2022 V. Hannen Detectors Control software for XUV and copper mirror detector Attached you find a manual for the software used to control the movement of the XUV detector and the copper mirror detector.       31   Wed Mar 23 16:58:33 2022 V. Hannen Detectors Status copper mirror and XUV detectors Over the past days, the parabolic copper mirror and XUV detectors haven been prepared and tested for the upcoming beamtime (see first      40   Thu Mar 31 11:49:54 2022 Konstantin Detectors HV-Supply of particle detectors We cross-checked the cabeling of the particle detectors north and south. Particle detector south is connected to channel [B]HV5[/B]      42   Thu Mar 31 15:53:50 2022 Konstantin Detectors Control software for XUV and copper mirror detector > Attached you find a manual for the software used to control the movement of the XUV detector and the copper mirror detector.       53   Fri Apr 1 15:27:00 2022 Rodolfo Detectors Nitrogen for UV-PMTs There was a question concerning the nitrogen we use to rinse the "Solar Blind PMTs".      54   Fri Apr 1 15:52:23 2022 Rodolfo Detectors UV PMT South The "Solar Blind PMT" labeled as "PMT South" has been installed by Simon and Max in the gas target chamber on a CaF Viewport. The      55   Fri Apr 1 16:46:33 2022 Carsten Detectors All pressuzied air drives are tested now and are working properly All pressuzied air drives are tested now and are working properly      57   Fri Apr 1 18:30:38 2022 Carsten Detectors Positions / Voltages threshlds for particle detectors [B]DC beam 238U92+ (205kV, e-beam)[/B] We used the detector NA_SZ to determine the central primary-beam (238U92+) position by      58   Fri Apr 1 22:01:14 2022 Konstantin Detectors PMT operating voltages > During the testing of the PMTs the following operating voltages were applied: >       59   Fri Apr 1 23:12:37 2022 Patrick Detectors Scraper positions "only primary beam" Scraper positions where there is only primary beam for detector tests. Use only one outer      60   Fri Apr 1 23:47:45 2022 Carsten Detectors PMT thresholds / PMT north does not allow voltage abow ~ -1kV Checked thresholds of PMT with beam and without beam.      77   Sun Apr 3 11:40:48 2022 Shahab, Yuri Detectors 245 MHz Resonator tuned to new frequency resonance frequency changed from 243.2 MHz to 244.692 MHz by reducing the value of both of the plungers from 395 to 325. Now after      97   Tue Apr 5 13:24:40 2022 Kristian Detectors PMT Cu HV cable was in wrong channel in power supply. Now it is back to the correct position. Checked connection at the PMT.      115   Wed Apr 6 19:39:08 2022 Ken Ueberholz Detectors LED installed The UV-LED of Münster was connected over  channel 8 to the Messhütte. 6V are  supplied by the power supply (picture 2).      116   Wed Apr 6 21:03:25 2022 Ken Ueberholz Detectors Xuv-Detektor, further information Some further information regarding the  xuv-detector and its components.      129   Thu Apr 7 05:55:17 2022 Ken Ueberholz Detectors XUV-Detector Mesytec crash When the XUV-detector has to shut down unexpectedly, it can happen that the Mesytek power supply crashes and can't be       137   Thu Apr 7 14:01:22 2022 Sebastian, Max Detectors Mesytec reset The Mesytec crate was turned off and on again. It is again possible to communicate with      139   Thu Apr 7 14:13:27 2022 Danyal Detectors new PMT south I have replaced the PMT south (looks at the gas target).  in the hope that this will produce less dark      141   Thu Apr 7 16:45:10 2022   Detectors Detector distances Relativ distances of the detector       150   Fri Apr 8 05:46:35 2022 V. Hannen Detectors High background rate in Cu PMT points to light leak in ESR or active pressure gauge The background rate of the Cu mirror PMT is only about 300 cps when the mirror is in the parking position but ca. 7000 cps when      165   Fri Apr 8 14:46:02 2022 Danyal & Sebastian & Volker & Ken Detectors high dark countrate Cu PMT solved The problem - "discovered" by Volker and Ken - of the high dark countrate of the Cu PMT has been solved.       191   Sun Apr 10 03:56:56 2022 V. Hannen Detectors Low rate in PMT South PMT south shows a much lower count rate than observed in elog entry 170.      217   Tue Apr 12 13:24:40 2022 Alexandre, Sebastian Detectors Sideband in Schottky Sometimes we see a broad sideband at lesser schottky frequencies to the high intensity thorium beam.      218   Tue Apr 12 14:11:52 2022 Ragan Detectors Sideband in Schottky > Sometimes we see a broad sideband at lesser Schottky frequencies to the high-intensity thorium beam.      219   Tue Apr 12 14:52:19 2022 Rodolfo Detectors PMT Nord, Middle. Datasheets Attached are the datasheets for the solar-blind PMTs.      221   Tue Apr 12 17:01:30 2022 Konstantin Detectors Voltage PMT North Voltage of PMT North has been increased from 2500 V to 2600 V. Additionally the threshold was adapted from 25 mV to 12 mV.      228   Thu Apr 14 12:27:18 2022 Sebastian, Max Detectors Connection to XUV / Cu reestablished! The connection to the XUV and Cu were lost during the nightshift.      229   Thu Apr 14 12:38:38 2022 Sebastian Detectors XUV / Cu checkups Check regularly if the connection to the XUV and Cu detectors are still active and the detectors move in (after injection) and out      5   Fri Aug 6 10:23:00 2021 Rodolfo DAQ atplaser on r4l-41 The user [B]atplaser[/B] is now existing on the [B]R4L-XY[/B] nodes for the ESR group.      6   Fri Aug 6 10:40:54 2021 Rodolfo DAQ mbs in atplaser The "MBS program" (data acquisition) is now located within atplaser@r4l-41, in the folder "th21":      9   Fri Nov 5 17:23:23 2021 Rodolfo DAQ Dye trigger out The dye laser offers different scan settings (see pages 65 - 67 of the user manual). We are using the following setting, see attached      15   Thu Mar 10 15:20:26 2022 Jan DAQ analog branch signal patches to Messhütte The additional signals from PMTs and XUV detector needed for spectroscopic analysis in the second DAQ are patched to AP Messhütte (MH)      16   Wed Mar 16 08:31:52 2022 Kristian DAQ Check cables and timing Konstantin and I generated a signal in the Messhütte and sent it to the ESR.  There, we used a 44m BNC cable that was sufficently      21   Fri Mar 18 16:51:27 2022 Carsten DAQ Main DAQ /MBS error MBS error "TDC data ready wait" solved. Common stop trigger (20 kHz) was missing. (according to Sebastian)      24   Mon Mar 21 10:46:18 2022 Rodolfo DAQ TDC & Scaler description channels For the First Vuprom we have the following channel configuration (Stand:21.03.2021).      25   Mon Mar 21 16:33:23 2022   DAQ Changing code of go4 We agreed to indicate changes in the go4 analysis code according to the following scheme      26   Mon Mar 21 17:03:47 2022   DAQ Changing code of go4 Correction: Comments in C/C++ start with // , i.e. forward slash      27   Mon Mar 21 21:48:46 2022 Jan DAQ MesyTec Shaper Control The MesyTec Shaper & Constant Fraction (MSCF) is used to process the PMT/det signals for the ADC in the second DAQ.      32   Thu Mar 24 13:27:47 2022 Rodolfo DAQ Disk space - LXG1297 In our Linux computer (LXG1297: Laser spectroscopy) we have a Drive with 1.8 TB total disk space. 300 GB are at the moment in use, but I can      34   Thu Mar 24 17:10:33 2022 Carsten DAQ DAQ / MBS VUPROM TDC buffer errors VUPROM TDC buffer errors potentially due to long TDC common Stop gate (>1ms from div 200).      41   Thu Mar 31 13:28:17 2022 Jan Glorius DAQ DAQ-2 cabling docu newest version V2 - valid since Mo 04.April 2022      43   Thu Mar 31 17:56:32 2022 Konstantin DAQ Photodiode test signal We used a signal generator to provide a 4MHz dummy-RF signal. This was divided by a factor of 2 for laser-"bunch" synchronization and      44   Thu Mar 31 20:07:47 2022 Shahab DAQ Schottky Display in AP Messhütte (or anywhere else) [B]UPDATE: 16.05.2022[/B] [I]Please use ATPPC029 instead of ATPPC019      45   Thu Mar 31 22:19:14 2022 Kristian DAQ How To Start MBS (MBS server should be running at the LXG1297 machine. If not you will get an error message. Then start the server - last command in console)      49   Fri Apr 1 01:57:12 2022 Kristian DAQ Timing with bunched primary beam (bunching frequency 1.94070 MHz) we have strong PMT (mid) and particle detector signal. Time between both      51   Fri Apr 1 11:00:41 2022 Rui-Jiu Chen DAQ Start NTCAP Start taking data with NTCAP. Carrier Frequency: 245MHz IQ rate:5 MSamples/s      52   Fri Apr 1 11:19:57 2022 Rui-Jiu Chen DAQ S.M.A.R.T check on NTCAP S.M.A.R.T. check has been done on NTCAP on March 28th. All 12 hard disk drivers  are normal.      79   Sun Apr 3 12:35:17 2022 Max DAQ Go 4 manual How to start go4?: - go to console      85   Mon Apr 4 00:19:16 2022 Ken Ueberholz DAQ FirstTests New measurement: Start: About 00:12 Stop: About 00:43      87   Mon Apr 4 15:27:31 2022 Sebastian DAQ PMT over wavelength histogram Kristian and I tried to create a "PMT over wavelength" histogram under step2Anl/LabView. Unfortunately, the code ist still in progress      88   Mon Apr 4 15:32:38 2022 Kristiand & Sebastian DAQ Go4 Backup Code Due to some code changes (PMT over wavelength historgram) Kristian and I backuped a working Go4 code in the current go4 folder on the      89   Mon Apr 4 16:26:04 2022 Carsten DAQ Backup Harddisk /External Disk Since we cannot write on lustre, as a temproal solution two RAID 1 (mirror) USB hard disks  with cpacity 6 TB each are installed.      90   Mon Apr 4 17:26:48 2022 Jan Glorius DAQ MSCF shaper settings attached are the current shaper settings. list of currently connected channels:      91   Mon Apr 4 19:05:57 2022 Carsten DAQ Cooler Frequency Signals Ion current not connected until now Up to now the signals for  Ion Current Cooler elctron current      92   Tue Apr 5 08:00:50 2022 Kristian & Sebastian DAQ MBS Channellist (so far) MBS Channellist (time 5.4.2022) 0 Anode      95   Tue Apr 5 11:14:52 2022 Sebastian, Kristian, Pierre-Michel DAQ PMT over wavelength histogram v2 Today we finalized the PMT over wavelength histogram in:      96   Tue Apr 5 12:17:12 2022 Ragan, Rui-Jiu DAQ Instructions to start and stop NTCAP Attached are the instructions to start and stop data taking using the NTCAP.      98   Tue Apr 5 13:28:06 2022 Kristian DAQ Spikes in PMT signal Occasionally, we noticed a spike in the PMT signal. No ions in the ring and at PMT Cu was not even supplied with HV. Has to be      99   Tue Apr 5 14:51:51 2022 Kristian DAQ dark counts We shielded the PMTs, i.e., the N2 tube, which improved the Cu PMT background rate.      100   Tue Apr 5 15:25:47 2022 Sebastian, Kristian, Pierre-Michel DAQ Go4 Conditions for "TDC_stacked_Sig/Ref" histogram First version of TDC_stacked histograms implemented. Under folder "Conditions" you can now integrate      105   Wed Apr 6 08:06:02 2022 Danyal DAQ stopped NTCAP data acquisition I stopped the NTCAP data acquisition at 8 AM.      108   Wed Apr 6 13:32:57 2022 Max, Sebastian DAQ LabView Cobra Channel List channel 0: linux time (epoch time) channel 1: ms timer channel 2: E-Cooler Voltage(Ohmlabs)      119   Thu Apr 7 00:36:36 2022 Uwe DAQ Threshholds and shaping Mesytec for ADC        122   Thu Apr 7 03:06:15 2022 Patrick DAQ DAQ file sizes The file sizes of DAQ1 (229Thor) and DAQ2 (229Th, "Carstens DAQ") are different. During 20min of laser scanning DAQ1 saves      123   Thu Apr 7 03:09:36 2022 Carsten DAQ NTCAP running since 02:40        124   Thu Apr 7 03:44:21 2022 Patrick DAQ Measurement procedure [U][B]Measurement procedure[/B][/U]      125   Thu Apr 7 04:10:18 2022 Ken Ueberholz DAQ Corrected cabling DAQ 2 A lot of cables were wrongly or not  connected to the DAQ 2.       127   Thu Apr 7 05:23:50 2022 Patrick DAQ How To Start MBS for DAQ2 (Carstens DAQ) (MBS server should be running at the LXG0155 machine. If not you will get an error message. Then start the server - last command in console)      128   Thu Apr 7 05:44:40 2022 Pierre-Michel, Ragan DAQ NTCAP settings Carrier Frequency: 244M IQ Rate: 10M reference Level: -30      130   Thu Apr 7 07:40:09 2022 Danyal, Max, Sebastian DAQ No beam and DAQs crashed since shortly after 7 AM we have no beam in the ESR (reason unclear)       133   Thu Apr 7 09:23:18 2022 Sebastian DAQ DAQ1 & DAQ2 - 1kHz and delayed cs removed Questionable 1kHz and delayed common stop signals has been removed.      140   Thu Apr 7 15:18:25 2022 Danyal & Sebastian DAQ DAQ channels We checked again the cables for both DAQs (on Carsten's kind request)       146   Fri Apr 8 01:18:51 2022 Ken Ueberholz DAQ TODO: DAQ improvements For somebody who knows the DAQ1 code: Go4 resets the histograms with each laser step. Can there be additional histograms where      147   Fri Apr 8 01:48:57 2022 Patrick DAQ Bugged Trending plots? The wavelengths/frequencies shown in the graph in the labview window do not match the wavelengths/frequencies in go4.      153   Fri Apr 8 08:40:06 2022 Sebastian DAQ DAQ improvement Concerning ID 146 a new histogram for accumulating data (no cleaning histograms) can be found under      162   Fri Apr 8 14:12:57 2022 morning shift DAQ timing for h=1 The timing for h=1 has been set up  The time window is now twice as large as      163   Fri Apr 8 14:14:28 2022 Kristian DAQ Delay of bunch RF The bunch HF is now fed through a delay to shift the stop trigger relative to the PMT signal. The delay generator is placed directly      164   Fri Apr 8 14:43:50 2022 Wilfried DAQ laser timing - Q-switch start below are my notes concerning laser timing / Q-switch start      170   Fri Apr 8 17:57:45 2022 Konstantin DAQ Laser scanning [TABLE border="1"]      171   Fri Apr 8 22:26:44 2022 Patrick DAQ Spike in all detectors In the previous shift, there was a spike in all detectors in the same scan step. Apparently, this was NOT a resonance since in the next      172   Fri Apr 8 23:56:07 2022 Patrick DAQ DAQ improvement As requested in ID:146 and ID:147, the laserscan tab was improved: [LIST]      174   Sat Apr 9 03:27:47 2022 Patrick DAQ Laser scanning DAQ1: lxg1927:/data.local2/BeamTimeTh22/ DAQ2: lxg0155:/data.local2/E142/ LMD file name DAQ1:229Thor      178   Sat Apr 9 04:40:01 2022 Patrick DAQ Bugged Trending plots? The problem from yesterday (ID:147) still persists. All the plots (not only the labview stuff) comes in too late in go4. However,      184   Sat Apr 9 14:15:44 2022 Kristian, Max, Konstantin DAQ Change in LV code We changed the LV code so that the Cobra Set Wavelength is permanently sent. Before it was only sent once at the beginning of each      190   Sun Apr 10 02:20:17 2022 Patrick DAQ New mbs startup guide Connecting to the rfio server and opening a file is included in '@startup' now. Since mbs crashes reliably every 3 or 4 runs, it      192   Sun Apr 10 04:07:53 2022 Patrick DAQ go4 shows wrong frequencies and wavelengths [B]Update (ID:194):[/B] In labview "Stop All", close labview, stop python script (ID:197), close wavemeter. Then restart wavemeter,      193   Sun Apr 10 04:37:29 2022 Patrick DAQ Next wavelength range Measurements with the next wavelength scan range should be started roughly around 12:00 noon. The plan is to go to lower wavelengths      194   Sun Apr 10 06:34:49 2022 Kristian, Max DAQ Wavemeter Readout Problem solved. Ignore this entry      198   Sun Apr 10 13:17:53 2022 Kristian, Max DAQ Wavemeter readout We changed the Labview code in order to reduce the amount of data that was overfilling the WM data queue. We removed the temperature      199   Sun Apr 10 15:08:42 2022 Carsten DAQ Backup of Data from 1rst Scanrange to extrenal RAID1 HDDs I just performed a backup of all data (+log-Files) that were collected until now to the two RAID HDDs.      204   Mon Apr 11 04:26:53 2022 Patrick DAQ Next wavelength range Measurements with the next wavelength scan range should be started roughly around 10:00 am.      19   Thu Mar 17 17:56:33 2022 Kristian Calibration HV dividers PTB HV dividers arrived. Divider ratios are: PT120:          12003,341       46   Thu Mar 31 22:41:35 2022 Kristian Calibration HV divider We noticed a difference in the electron cooler high voltage:      56   Fri Apr 1 18:19:58 2022 Kristian Calibration HV divider We checked the strange behavior of the HV dividers again. The Ohmlabs and the PTB divider are in good agreement at 120 kV and 150 kV.      83   Sun Apr 3 18:52:30 2022 Konstantin Calibration Laser ion beam overlap We measured vertical and horizontal ion beam positions. Unfortunately, the horizontal scraper positions can not be manipulated      142   Thu Apr 7 16:50:22 2022 Konstantin Calibration Spacial laser-ion overlap Laser-ion-beam overlap was achieved after measuring the ion beam positions (compare [URL=https://elog.gsi.de/esr/E142/83]Entry      143   Thu Apr 7 19:13:26 2022 Konstantin, Patrick Calibration How to find the correct laser position In order to achieve the correct laser ion beam superposition one needs to do the following steps:      169   Fri Apr 8 17:44:25 2022 Konstantin Calibration Final Timing We measured the timing for the laser bunch synchronization. A summary is given below.      10   Fri Nov 19 15:50:44 2021 Rodolfo Accelerator Laser windows at E-Cooler side New laser viewports have been installed at the E-Cooler side of the ESR.      18   Thu Mar 17 17:37:49 2022 Rodolfo Accelerator High voltage dividers for E-Cooler Two dividers, from PTB-Braunschweig, have been deliver today. We will use them to monitor the electron-cooler voltage in situ.      20   Fri Mar 18 09:18:38 2022 Rodolfo Accelerator Vacuum leak, ODR After the beaking out process we got a vacuum leak in one of the MgF2 windows (Referenz: PMT South) of the optical detection region      22   Fri Mar 18 16:58:26 2022 Rodolfo Accelerator Pressure at North-East Arc The pressure at the north-east arc of ESR, where the laser window is located, looks suspicious. The sensor E01LF02 shows a value      23   Mon Mar 21 09:18:28 2022 Rodolfo Accelerator Pressure at North-East Arc Our vacuum expert has reply. The "IZ Pump" in this region was off.      39   Wed Mar 30 09:27:15 2022 Rodolfo Accelerator Issue? Scrapers at E-Cooler Carsten* forwarded me an E-Mail from Markus yesterday. "Betreff: Scraper im ESR Elektronenkühler"      65   Sat Apr 2 15:54:32 2022 Carsten Accelerator ESR setup with primary beam and 1cm Be plate + Schottky data on NTCAP MArkus and Bernd have setup the ESR with the thick stripper foil and put the ion beam (238U92+) on the central orbit.      66   Sat Apr 2 16:10:22 2022 Markus, Bernd Accelerator SIS setting complete, U90+ mit Be target: 2022-04-02_16-04-00_SIS18_FAST_E142_20220325_110213.C1.txt # Version: 1.2 # Comment: ParamModi Export at 2022-04-02T16:04:10.778077+02:00[Europe/Berlin] # Context: SIS18_FAST_E142_20220325_110213.C1      68   Sat Apr 2 18:17:31 2022 Yuri Accelerator Photo-Identification Just a photo of the ID      69   Sat Apr 2 18:19:47 2022 Yuri Accelerator Scraping        70   Sat Apr 2 18:28:47 2022 Markus/Bernd Accelerator SIS setting complete for fragments in ESR: 2022-04-02_18-09-10_SIS18_FAST_E142_20220325_110213.C1.txt # Version: 1.2 # Comment: ParamModi Export at 2022-04-02T18:09:36.402593+02:00[Europe/Berlin] # Context: SIS18_FAST_E142_20220325_110213.C1      74   Sun Apr 3 10:28:25 2022 Yuri (Helmut Weick) Accelerator Distance cooler - detector Calculation from Helmut Weick Distance e-cooler to particle detectors chamber: “This is half of ESR plus distance target      75   Sun Apr 3 10:35:20 2022 Yuri (Sergey) Accelerator Dipole correction The ramp for moving the beam to the central orbit To be inserted into manipulation, GE01MU1      76   Sun Apr 3 11:01:57 2022 Rodolfo Accelerator Scrapers @ E-Cooler We the mid- and night shift (Wilfried, Simon, Patrick, Ken and me) we not able to manipulate the scrapers in the E-Cooler.      93   Tue Apr 5 09:39:01 2022 Danyal & Yuri Accelerator Strahl ist wieder im ESR - Schlitz war reingefahren Der Strahl ist wieder im ESR!  Angeblich war einen Schlitz, oder sogar 2, reingefahren worden.       94   Tue Apr 5 09:45:47 2022 Danyal & Yuri Accelerator beam is back in the ESR - a slit was moved in And now also in English :)  The ion beam is back in the ESR!       103   Tue Apr 5 23:07:34 2022 Carsten Accelerator 229Th89+ identification after re-tuning of the ESR The ESR was retuned this aftenoon since the it was unclear if we still sit the 229Th89+ line.      107   Wed Apr 6 09:30:53 2022 Danyal Accelerator ESR is blue again - errors are fixed The ESR is "blue" again.  The errors (scu related) have been fixed.      111   Wed Apr 6 15:19:29 2022 Svea, Shahab Accelerator 5s delay implemented before injection Operators have informed us that for better stability and operation (and cooperation with HHT), and after discussing with Sergey,      112   Wed Apr 6 16:01:07 2022 BL Accelerator ESR settings before adjusting laser: 2022-04-06_14-37-30_ESR_EXP22_02_238U92_Brandau_30March22.C1.txt # Version: 1.2 # Comment: ParamModi Export at 2022-04-06T14:37:35.957978+02:00[Europe/Berlin] # Context: ESR_EXP22_02_238U92_Brandau_30March22.C1      113   Wed Apr 6 18:51:33 2022 Danyal & Carsten Accelerator target bump This afternoon, we found out that Sergey has also implemented a "target bump".  Although we do not use a target, this bump      117   Wed Apr 6 22:29:55 2022 Patrick Accelerator ECooler voltages ECooler voltages: [B]06.04:[/B]      132   Thu Apr 7 08:43:19 2022 Danyal, Yuri, Ragan Accelerator again no injection in ESR - ESR kicker problem we had no injections in the ESR again  it turned out that the injection kicker of      134   Thu Apr 7 09:58:55 2022 Ragan, Yuri, Danyal Accelerator Kicker problem solved The kicker problem is solved and the beam is back in the ESR.      135   Thu Apr 7 10:10:31 2022 Ragan, Yuri, Danyal Accelerator Problem in UNILAC The power supply of the UNILAC magnet is broken. The repair will take up to 6-7 hours.      154   Fri Apr 8 09:13:38 2022 Ragan, Danyal Accelerator No beam Cathode is being changed at the ion source. So no beam for the moment.      167   Fri Apr 8 15:42:20 2022 Yuri Accelerator Slits in the TE line At around 15:00, The slits in the TE line were changed to : TE4DS5HL -12 mm -> -20 mm      173   Sat Apr 9 02:55:38 2022 Carsten Accelerator Kühlerausfall und Gründe dazu Wir hatten heute Abend eine Kühlerausfall, der uns mehrere Stunden beschäftigt hat, weil  gem. Anzeige in Device Control kein      175   Sat Apr 9 03:46:31 2022 Carsten Accelerator Slits in TE line Changed GTEDSAH Rechts to 10mm      176   Sat Apr 9 03:57:10 2022 Carsten Accelerator New Cooler voltage after the crash of the cooler After the restart of the cooler the Ohmlabs divider showed a voltage 16V lower than before. This could also be seen as a slight shift      201   Sun Apr 10 15:29:37 2022 Carsten,Sarper Accelerator Ecooler failed Ecooler failed @15:23 Carsten is fixing it Fixed @16:00      205   Mon Apr 11 07:54:37 2022 Danyal, Alexandre, Kristian, Sebastian Accelerator Jump in E-cooler voltage We saw a jump in the E-cooler voltage at about 7:50.  jump from 209619 to 209610 V       206   Mon Apr 11 10:17:01 2022 Danyal Accelerator Interlock - reset 10:17  Wie heutemorgen in der Sitzung (morning briefing) vereinbart,       209   Mon Apr 11 12:50:22 2022 Kristian Accelerator Th lifetime We used the counter to measure the lifetime. During the 30 min scan time dropped only slowly.       216   Tue Apr 12 12:41:20 2022 Alexandre, Sebastian Accelerator no beam in SIS18        225   Thu Apr 14 06:29:18 2022 Max, Sebastian Accelerator lesser ESR injection intensity We now have less ESR injection intensity (see screenshot attached).      226   Thu Apr 14 08:41:42 2022 Carsten Accelerator Low intensity at the experiment after series of failures during the night After the recovery from the failures during the night, we see much lower intensity at the experiment (measured with the particle      227   Thu Apr 14 10:57:11 2022 Carsten Accelerator Maintanence UNILAC / Op training We had no beam since about 1000. Also, we are still trying to find out why we have such a low intensity in the expereimnt.       37   Tue Mar 29 12:47:26 2022 Ken Ueberholz   Parameter setting for XUV and copper mirror detector Some Default Settings for the XUV  Detector. The copper  mirror should always move fully in.      47   Fri Apr 1 00:27:27 2022 Carsten   Settings Particle Detectors /Tests with primary beam All the beam settings will be given in a separate post.      50   Fri Apr 1 02:29:40 2022 Carsten   ESR Cooler crashed ESR cooler crashed. We could not restart the cooler. Since we had several other problems, we stop now.      Draft   Sat Apr 2 01:02:39 2022 Carsten   Test measurements with two DAQs We do two measurements: One measurement using the       67   Sat Apr 2 17:47:16 2022 Ken Ueberholz   Telefon, Gästehaus My guesthouse phone number: 06159-71-2957      71   Sat Apr 2 22:43:36 2022 Carsten   Ring set-up for 229/89+, scraped and bunched, Iel=500mA at injection and 100mA during measurment The ring SIS/ESR were set up for 229/89+. Pölease note that this not only 1e- Th but ponteially also the isobars of Ac (0e-1)/Pa(2e-,      72   Sat Apr 2 23:16:55 2022 Carsten   Cu mirror and CsI moved in and out of the ring Ken tested the Cu-mirror and CsI disk Detector. They move without a problem and don't scrape the ion beam.      73   Sun Apr 3 00:41:45 2022 Ken Ueberholz   Xuv-Detektor Signale The Xuv-detector cabel channels seem to be wrongly labeled in the Messhütte (see       81   Sun Apr 3 15:34:34 2022 Ken Ueberholz   Xuv-Detektor CFD-treshhold I co controlled all detector signals and  adjusted the threshold to be just above  the noise. I will double check this when      126   Thu Apr 7 04:48:58 2022     ToDo's for 07.04. Some ToDo's for the next shift: - Work on  Laser stabilisation 2nd stage in the ESR      144   Thu Apr 7 22:18:06 2022 Night shift 7.4-8.4   Next scans DAQ1: lxg1927:/data.local2/BeamTimeTh22/ DAQ2: lxg0155:/data.local2/E142/ LMD file name DAQ1:229Thor      156   Fri Apr 8 09:33:52 2022 Dayshift 1 8.4.2022   Reference Measurements DAQ1: lxg1297:/data.local2/BeamTimeTh22/ DAQ2: lxg0155:/data.local2/E142/ LMD file name DAQ1:229Thor      159   Fri Apr 8 11:02:04 2022 DW, YL, RSS, SL   Change h=2 to h=1 After changing to h=1 The frequency manipulation #5: f=242.021487MHz (124th harmonic) [no bunching]      168   Fri Apr 8 15:45:24 2022 YL   Spectrum manipulation 5 See attached      177   Sat Apr 9 04:01:35 2022 Carsten   2nd DAQ Switched the CAEN TDC back on and changed the threshoolds for the ADC to:       189   Sat Apr 9 19:50:40 2022 Carsten   New thresholds for ADC of DAQ2 (starting with file0117) unsigned short caen_V785AH_threshold_mod0 [32] =                  {0x0100 , 0x0004 , 0x0003

Goto page 1, 2, 3 ... 10, 11, 12

ELOG V3.1.5-fc6679b