| ID |
Date |
Author |
Category |
Subject |
|
82
|
Fri May 27 14:57:23 2022 |
Rodolfo | Laser | Laser Energy |
I have started up the laser system (Q-Ray & Cobra) again. Here some parameters*:
- Q-Ray's output energy (@532 nm: 547 mJ.
- Seed energy for Cobra# (@532 nm): 504 mJ.
- Cobra's output energy (@ 601.7 nm): 71 mJ.
* all values averaged over 500 pulses.
# angle of lambda/2-plate: 107° |
|
83
|
Fri May 27 20:39:50 2022 |
Carsten | Analysis | Short Manual for updated Go4 DAQ (version 2022_05_27) |
| Short descriptions of the most recent version of the GO4 code is attached. I will install the corresponding vesion early on sunday. |
| Attachment 1: Short_Introduction_to_the_208Bi_Go4_Analysis.pdf
|
|
| Attachment 2: Short_Introduction_to_the_208Bi_Go4_Analysis.odt
|
|
84
|
Mon May 30 00:56:33 2022 |
Max, Patrick | Laser | Beam overlap |
The ion beam positions are (+- 1mm):
|
device | move in dir. | scratch (mm) | gone (mm) | gone +- 4.5 (mm) | x0 (mm)
| |
GECEDS1VU | up | -1.5 | 0.7 | 5.2 |
| |
| | | | |
| |
GECEDS1HA | right | -26 | -22 | -17.5 | -4.7
| |
| left | -10.0 | -13.0 | -17.5 |
| |
| | | | |
| |
GECEDS2VU | up | -2.0 | 0.0 | 4.5 |
| |
| | | | |
| |
GECEDS2HA | right | -22.0 | -18.5 | -14.0 | 3.1
| |
| left | -6.0 | -9.5 | -14.0 |
|
Notes:
- In between a measurement the scrapers stopped working in the device control. Therefore, we had to go into the electronics room.
- Position to scratch charge transferred beam: S1HA at -35.
- Beam diameter is roughly 6-7 mm (horizontally) and 4 mm vertically (as opposed to 1-2 mm).
- The charge transferred ion beam seems to shift the position of the main beam over time (1cm / 2h) as the main beam "transfers its intensity".
|
| Attachment 1: 2022-05-30_laser_beam.png
|
|
| Attachment 2: 2022-05-30_beamstab_settings.png
|
|
|
85
|
Mon May 30 01:13:40 2022 |
Konstantin, Max, Patrick | Detectors | XUV-Detector voltage off |
XUV-Detector shows up to 100 kHz and, therefore, was turned off. |
|
86
|
Mon May 30 02:12:20 2022 |
Max, Patrick, ~Konstantin, Ragan, Ken | Runs | runs night shift 30.05. |
These are the first runs of the substitute beamtime.
|
Time | ESR-intensity | ESR-intensity after orbit change | cooler-HV | LMD-DAQ2 file nr | LMD-DAQ1 file nr | scan range(nm) | step width increment (nm) | dwell time(s) | n loops | comments
| |
02:00 | ? | 8.0e6 | 223217 | 632 | 8158 | 601.95 - 601.734 | 0.005 | 5s | 5 | Resonance found in first scan. The resonance is much broader due to a broader ion beam.
| |
02:28 | ? | 7.0e6 | 223217 | 633 | 8159 | 601.9 - 601.7 | 0.005 | 5s | 5 | Same injection.
| |
02:52 | ? | 6.3e6 | 223217 | 634 | 8160 | 601.9 - 601.7 | 0.005 | 5s | 5 | Same injection. Adjusted gates in go4.
| |
03:14 | ? | 5.6e6 | 223439 | 637 | 8163 | 601.9 - 601.7 | 0.005 | 5s | 5 | Same injection. Auto-impedance enabled -> correct voltages. NTCAP started shortly after scan start.
| |
03:35 | ? | 3.0e5 ? (under range) | 223439 | 639 | 8164 | 601.9 - 601.7 | 0.005 | 5s | 5 | Scraped the lower charge state beam by moving S1HA to pos. -30 (from the left).
| |
04:50 | ? | 1.1e7 | 223439 | 640 | 8165 | 601.9 - 601.7 | 0.005 | 5s | 5 | Laser beam position slightly corrected for new ion beam position, see ID:84.
| |
05:05 | ? | 1.0e7 | 223439 | 641 | 8166 | 601.9 - 601.7 | 0.005 | 5s | 5 | See picture (this + previous run)
| |
05:21 | ? | 1.0e7 | 223439 | 642 | 8167 | 601.9 - 601.7 | 0.005 | 5s | 5 | Moved S1HA to -35 to get rid of the charge transferred beam.
| |
05:33 | ? | 9.0e6 | 223439 | 644 | 8169 | 601.9 - 601.7 | 0.005 | 5s | 5 |
| |
05:52 | ? | 9.0e5 | 223439 | 645 | 8170 | 601.9 - 601.7 | 0.005 | 5s | 5 | Scraped main beam for lower beam intensities.
| |
| | | | | | | | | | There were some issue with the acquisition, and thus there are some empty files
| |
06:08 | ? | 4.e5 | 223438 | 650- | 8172 | 601.9 - 601.7 | 0.005 | 3s | 25 |
| |
07:11 | ? | 1.15e7 | 223438 | 653 | 8173 | 601.9 - 601.7 | 0.005 | 3s | 25 | laser scan was not started
| |
07:17 | ? | 1.03e7 | 223438 | 654-656 | 8174 | 601.9 - 601.7 | 0.005 | 3s | 25 |
| |
08:33 | ? | 6e6 | 223438 | 658-660 | 8176 | 601.9 - 601.7 | 0.005 | 3s | 25 | ESR scraper not in
| |
09:27 | ? | 5.5e6 | 223438 | 661-667 | 8178 | 601.9 - 601.7 | 0.005 | 3s | 25 | XUV detector running again, signal of PMT north and middle in att. 2
| |
10:15 | ? | <<1e6 | 223438 | 668 | 8179 | 601.9 - 601.7 | 0.005 | 3s | 25 | very low beam intensity
|
Note: PMT north does not see a resonance.
Note: PMT north does see a resonance after changing to the broadband PMT. |
| Attachment 1: 2022-05-30_resonance_10_loops.png
|
|
| Attachment 2: 48_AM.png
|
|
|
87
|
Mon May 30 02:33:45 2022 |
Patrick, MBS Max | DAQ | MBS procedure |
It is possible to keep go4 running now. Summary of the procedure:
DAC1: open file lxg1297:/data.local2/208Bi/208Bi -auto -rfio
DAC2: open file lxg0155:/data.local2/E128/Bi -auto -rfio
sta ac
start go4
measure
stop go4
sto ac
clo fi
repeat |
|
88
|
Mon May 30 08:35:41 2022 |
Kristian, Simon, Ken, Ragan | Detectors | Changed PMT North |
We did not see any signal at PMT North which was the narrowband PMT. Changed it to the old solar blind PMT. Now we see the resonance. It is about 3 times larger as PMT middle, most likely because of the larger window. CFD threshold was set. I also increased the CFD threshold for PMT middle slightly.
HV for PMT North: 1600 V |
|
89
|
Mon May 30 09:28:43 2022 |
Ken, Kristian, Simon, Ragan | Detectors | XUV-Detector |
9:27 XUV-Detector is running again.
-5V cathode, 8A main coil, 2.4A sec.coil
Rate without beam was:
Park position: ~300Hz
Pump beneath the detector is now shut down, new rate: <10Hz.
Threshold was adjusted to trigger only on "nice" signals.
Rate with beam in and laser:
Park position: ~400Hz
147mm: ~1.4kHz
with 2e6 ions |
|
90
|
Mon May 30 16:17:39 2022 |
Kristian, David, Wilfried, Carsten, Danyal, Rodolfo | Runs | Afternoon shift 30.05 |
These are the first runs after changing to the thick stripper foil.
|
Time | ESR-intensity | ESR-intensity after orbit change | cooler-HV | LMD-DAQ2 file nr | LMD-DAQ1 file nr | scan range(nm) | step width increment (nm) | dwell time(s) | n loops | comments
| |
16:15 | ? | 5.0e6 | 223439 | 669-670 | 8180 | 601.95 - 601.734 | 0.005 | 5s | 5 | Resonance found in first scan. electron cooling current 100mA
| |
16:45 | ? | 5.0e6 | 223439 | 671-672 | 8181 | 601.95 - 601.734 | 0.005 | 5s | 5 | electron cooling current 300mA
| |
|
Width approximately the same with the higher electron current.
next we go to 208Bi |
|
91
|
Mon May 30 19:00:19 2022 |
Carsten | General | Scraper Settings and Parameters for the last measrements with thick target |
old Bunch frequency: 1.98777 MHz
Positions PL devices:
|
GE01DD2AG | -23
| |
GE01DD2IG | 3
| |
GE02DD2_G | -35
| |
GE02DS3HG | 0
|
The voltages of the particle detectors were set to:
SA_SZ: 1500V
NA_SZ: 750V
But for the primatry beam measurements the detectors were still switched off
Set values for cooler:
SC3: 223513.377 + DeltaU = 160V
SC6: 223452.14 + DeltaU = 130V
SC9: 223452.14 + DeltaU = 130V
Electron current:
SC3: 300mA
SC6: 100mA (300mA in the second file)
SC9: 100ma (300mA in the second file)
Cooling in SC4: 550x
Cooling in SC7: 50x
Explanation of subchains:
SC4: Cooling at injection orbit
SC5: Ramp to central orbit
SC7: Cooling at central orbit
SC8: Scrapers /particle detectors in, XUV detector in, (~10s), bunching on
SC9: measurement
SC10: not used
SC11: Scrapers/particle detectors/XUV ectros out (~10s), bunching off |
| Attachment 1: screenshot-2022-05-30_19-12-151030168345517073342_(002).png
|
.png.png "screenshot-2022-05-30_19-12-151030168345517073342_(002).png")
|
|
92
|
Mon May 30 19:42:20 2022 |
Rodolfo & Kristian | Laser | Changing laser wavelength |
We have changed the laser wavelength, e.g. the dye for the Cobra to Fluorescein 27.
We get about 84 mJ out the main amplifier @ 548 nm.
We also changed the optics and put into operation the MRC stabilization system for this new wavelength regime.
Next step is to T-scrape the ion- and laser-beams, e.g. to make the overlap of both beams at the E-Cooler. |
|
93
|
Mon May 30 20:58:26 2022 |
Carsten | Accelerator | New Settings for 208Bi Beam |
Old SetParameters.C and old SetConditions.C were saved as SetParameters_209.C and SetConditions_209.C
The ion beam settings were changed to 208Bi82+:
SIS energy now: 554.6 MeV/u (was 551MeV/u) + 3.6MeV/u
Cooling voltages were increased by 1830V, i.e.
Delta U SC3: 1990V
DeltaU SC6 / SC9 : 1960V ???
The new frequency is 1.99236615 MHz
DD2AG xx
DD2IG xx
DD2_G xx
DS3_HG xx
SIS intensity is still only about 1e8 |
|
94
|
Mon May 30 21:52:08 2022 |
Wilfried, Danyal, David, Rodolfo | General | Position of T-Scrapers |
We have determined the position of the H-like 208Bi ion beam using the T-Scrapers. The position actually did not change in comparison to the position of H-like 209Bi.
Here we have the values where the beam was "gone"
|
device | move in dir. | gone (mm) | x0 (mm)
| |
GECEDS1VU | up | 0.7 |
| |
| | |
| |
GECEDS1HA | right | -22 | -4.7
| |
| left | -13.0 |
| |
| | |
| |
GECEDS2VU | up | 0.0 |
| |
| | |
| |
GECEDS2HA | right | -18.5 | 3.1
| |
| left | -9.5 |
|
Below you can see a screenshot with the settings of the beam stabilization system. |
| Attachment 1: MRC_208Bi_30-05-2022-10Uhr.png
|
|
|
96
|
Mon May 30 23:18:06 2022 |
Carsten, Rodolfo, Konstantin, Patrick, Ragan, Ken, Kristian, Max, Danyal | Runs | Runs shifts 31.05. |
These are the first runs with 208Bi.
|
Time | SIS-intensity | ESR-intensity after orbit change | cooler-HV | LMD-DAQ2 file nr | LMD-DAQ1 file nr | scan range(nm) | step width increment (nm) | dwell time(s) | n loops | Particle Detector | comments
| |
23:11 | 2.6e8 | - | 225259 | 673-677 | 8182 | 548 - 549 | 0.005 | 2.97s | 4 | 139e3 | Resonance found in first scan.
| |
00:09 | ? | - | 225259 | 678-679 | 8183 | 548 - 549 | 0.005 | 2.97s | 2 | 92e3 |
| |
00:45 | 2.8e8 | - | 225260 | 680-681 | 8184 | 548 - 549 | 0.005 | 2.97s | 2 | 36e3 | In this run, the ions seemed to be not ejected with the new request, compare picture.
| |
01:27 | 2.7e8 | - | 225260 | 684-685 | 8187 | 548 - 549 | 0.005 | 2.97s | 2 | 88e3 | Started delayed due to several issues with both DAQs.
| |
01:53 | 2.7e8 | - | 225260 | 686-687 | 8188 | 548 - 549 | 0.005 | 2.97s | 2 | 93e3 |
| |
02:20 | 2.7e8 | - | 225260 | 688-689 | 8189 | 548 - 549 | 0.005 | 2.97s | 2 | 87e3 |
| |
02:55 | 2.1e8 | - | 225260 | 692-694 | 8190 | 548.335 - 548.535 | 0.0025 | 4.95s | 4 | 88e3 | Scan range changed
| |
03:30 | 2.75e8 | - | 225260 | 696-697 | 8191 | 548.335 - 548.535 | 0.0025 | 4.95s | 3 | 95e3 | Number of loops reduced to 3
| |
03:59 | 2.6e8 | - | 225260 | 698-699 | 8192 | 548.335 - 548.535 | 0.0025 | 4.95s | 3 | 89e3 |
| |
04:30 | 2.7e8 | - | 225260 | 700-702 | 8194 | 548.335 - 548.535 | 0.0025 | 4.95s | 3 | 89e3 | DAQ1 needed to be restarted
| |
04:52 | 2.55e8 | - | 225260 | 703-704 | 8195 | 548.335 - 548.535 | 0.0025 | 4.95s | 3 | 83e3 |
| |
05:18 | 2.62e8 | - | 225260 | 706-707 | 8196 | 548.335 - 548.535 | 0.0025 | 4.95s | 3 | 89e3 | DAQ2 needed to be restarted
| |
05:44 | ? | - | 225260 | 708-710 | 8197 | 548.335 - 548.535 | 0.0025 | 4.95s | 3 | ? |
| |
06:18 | 2.1e8 | - | 225260 | 711-712 | 8200 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 67e3 | we changed the timing by 20 ns. The laser pulse is later now. The file number of DAC1 is correct. I do not know why there is the gap to the previous scan
| |
06:51 | 2.4e8 | 6e5 | 225260 | 713-714 | 8201 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 67e3 | xuv-detector parameters were varied
| |
07:09 | 2.4e8 | 6e5 | - | 715- | 8202 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 68e3 | mbs did not start
| |
07:15 | 2.4e8 | 6e5 | 225260 | 716-717 | 8203 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 68e3 | xuv-detector walklevel and treshhold were lowered
| |
07:35 | 2.4e8 | 6e5 | 225259 | 718-719 | 8204 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 68e3 | we changed the timing by additional 20 ns. The laser pulse is later now. - no fluo. visible
| |
08:01 | 2.4e8 | 6e5 | 225259 | 720-721 | no file opened | 548.43 - 548.44 | 0.00001 | ~20s | 3 | 71e3 | varying the delay with each laser step to find optimum - It was more a plateau between +-30ns (relative to the night shift's position). We now continue data taking at the same dealy as used by the night shift.
| |
08:23 | 2.4e8 | 6e5 | 225258 | 722 | 8205 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 68e3 | xuv-detector walklevel and treshhold were lowered
| |
08:28 | 2.4e8 | 6e5 | 225258 | 724-725 | 8208 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 68e3 |
| |
08:48 | 2.4e8 | 6e5 | 225258 | 727-728 | 8209 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | ? | xuv-detector in Park-position just as a try
| |
09:08 | 2.4e8 | 6e5 | 225259 | 729-730 | 8210 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | ? |
| |
09:28 | 2.5e8 | 6e5 | 225259 | 731-732 | 8211 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 73e3 |
| |
09:54 | 2.5e8 | 6e5 | 225259 | 734-735 | 8212 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 175e3 |
| |
10:19 | 2.5e8 | 6e5 | 225258 | 737-738 | 8214 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 175e3 |
| |
10:38 | 2.5e8 | 6e5 | 225258 | 741-742 | 8215 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 64e3 | DAQ2 started late. Missed the first 25 scan numbers Coasting beam measurement from now on
| |
10:57 | 2.5e8 | 6e5 | 225258 | 743-744 | 8216 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 87e3 |
| |
11:17 | 2.5e8 | 6e5 | 225258 | 745 | 8217 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | e3 | MBS crashed
| |
11:18 | 2.5e8 | 6e5 | 225257 | 746-747 | 8218 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 87e3 |
| |
11:37 | 2.5e8 | 6e5 | 225257 | 749-750 | 8219 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 87e3 | DAQ2 started late. Missed the first 10 scan numbers
| |
11:56 | 2.5e8 | 6e5 | 225257 | 751 | 8220 | 548.36 - 548.51 | 0.0025 | 4.95s | 3 | 78e3 |
| |
12:59 | 2.5e8 | 6e5 | 225257 | 752 | 8221 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 78e3 | RF off from now on, laser scan settings not correct. stopped
| |
13:06 | 2.5e8 | 6e5 | 225257 | 753 | 8223 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 87e3 |
| |
13:26 | 2.5e8 | 6e5 | 225257 | 754 | 8224 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | - | MBS crashed
| |
13:29 | 2.5e8 | 6e5 | 225257 | 755-756 | 8226 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 93e3 | RF now really off (wrong cavity was turned off)
| |
13:43 | 2.5e8 | 6e5 | 225257 | 757-758 | 8227 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 67e3 |
| |
14:08 | 2.5e8 | 6e5 | 225257 | 759 | 8228 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 70e3 |
| |
14:22 | 2.2e8 | 6e5 | 225257 | 760 | 8229 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 56e3 |
| |
14:35 | 2.2e8 | 6e5 | 225257 | 761 | 8230 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 64e3 |
| |
14:50 | 2.2e8 | 6.5e5 | 225256 | 762 | 8231 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 59e3 |
| |
15:04 | 2.0e8 | 7e5 | 225255 | 763 | 8232 | 548.385 - 548.485 | 0.0025 | 4.95s | 3 | 58e3 |
| |
15:28 | 1.9e8 | ?e5 | 225272 | 764 | 8233 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 66e3 | changed to 200mA cooler current, NTCAP stopped and started again folder: prob. ~31.5.22 13:??, loops decreased to 2
| |
15:37 | 2e8 | 6e5 | 225272 | 765 | 8234 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 70e3 |
| |
15:47 | 2.5e8 | 6e5 | 225272 | 766 | 8235 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 73e3 | laser gone at loop 2 scan 35 (15:56), Ecooler went also off
| |
16:17 | ?e8 | 6e5 | 225272 | 767 | 8236 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 48e3 | bad shot?, probably ecooler reset
| |
16:27 | 2.2e8 | 6e5 | 225271 | 768 | 8237 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 77e3 |
| |
16:36 | 2.0e8 | 7e5 | 225272 | 769 | 8238 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 65e3 |
| |
16:52 | ?e8 | ?e5 | 225272 | 770 | 8239 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 61e3 | we had to restart go4, it was very slow
| |
17:02 | 2.0e8 | 7e5 | 225272 | 771 | 8240 | 548.385 - 548.485 | 0.0025 | 4.95s | 2 | 63e3 |
| |
17:16 | 2.3e8 | 7e5 | 225248 | 772-773 | 8241 | 548.385 - 548.485 | 0.0025 | 4.95s | 4 | 45e3 | changed to 50mA cooler current, NTCAP stopped and started again folder: 31.5.22 15:18, loops increased to 4
| |
17:36 | 2.7e8 | 7.5e5 | 225248 | 774-775 | 8242 | 548.385 - 548.485 | 0.0025 | 4.95s | 6 | 67e3 | loops increased to 6
| |
18:05 | 2.5e8 | 7.5e5 | 225248 | 776-777 | 8243 | 548.385 - 548.485 | 0.0025 | 4.95s | 6 | 66e3 |
| |
18:31 | 1.7e8 | 6e5 | 225247 | 778-779 | 8244 | 548.385 - 548.485 | 0.0025 | 4.95s | 6 | 44.6e3 | SIS pattern looked strange
|
|
| Attachment 1: 2022-05-31_particles.png
|
|
|
97
|
Tue May 31 03:18:52 2022 |
Patrick, Konstantin | Laser | Laser timing |
The final timings are (in bins +-1):
PD NO: 103
PD SO: 138
PMT middle: 44
e-cooler = (PD NO + PD SO) / 2: 121
e-cooler - PMT middle: 77
roundtrip / 2: 75
roundtrip / 2 + 10ns: 78 |
|
98
|
Tue May 31 15:19:58 2022 |
Max, Carsten, Danyal | General | scans for different E-cool currents |
until 15:15 we have measured with I_e = 100 mA (3 loops per file)
E_cool HV = 225255 V
after that (at 15:26) we changed to I_e = 200 mA (2 loops per file)
E_cool HV = 225272 V
after that (at 17:15) we changed to I_e = 50 mA (first 4 then 6 loops per file)
E_cool HV = 225247 V |
|
99
|
Tue May 31 17:22:09 2022 |
Max, Carsten, Danyal, Rodolfo, Wilfried | General | change E-cooler current I_e = 50 mA |
At 17:15 we changed again the E-cooler current I_e = 50 mA
(4 laser scan loops per injection)
E-cool HV = 225248 V |
|
100
|
Tue May 31 19:32:56 2022 |
Carsten, Wilfried, Max | Calibration | electron cooler calibration voltage - frequency |
|
SetVoltage (DeltaU) | MeasVoltage | freq | Current
| |
+1950V | 225247V | 245.06725 | 50 mA
| |
+1950V | 225255.4V | 245.0595 | 100 mA
| |
+1960V | 225266.4V | 245.062125 | 100 mA
| |
+1970V | 225276.8V | 245.064185 | 100 mA
| |
+1980V | 225286.6V | 245.066 | 100 mA
| |
+1990V | 225296.1V | 245.06775 | 100 mA
| |
+2000V | 225305.1V | 245.0695 | 100 mA
| |
+1950V | 225255.5V | 245.06 | 100 mA
| |
+1940V | 225246.0V | 245.058125 | 100 mA
| |
+1930V | 225236.0V | 245.05625 | 100 mA
| |
+1920V | 225226.0V | 245.0545 | 100 mA
| |
+1910V | 225216.7V | 245.052625 | 100 mA
| |
+1900V | 225205.8V | 245.050375 | 100 mA
| |
+1850V | 225156.5V | 245.041 | 100 mA
| |
+1800V | 225106.6V | 245.031375 | 100 mA
| |
+1950V | 225256.1V | 245.060125 | 100 mA
| |
+2000V | 225306.0V | 245.06975 | 100 mA
| |
+2050V | 225355.8V | 245.079375 | 100 mA
| |
+2100V | 225406.0V | 245.0890 | 100 mA
| |
+1950V | 225256.2V | 245.060125 | 100 mA
|
Change electron current and note down High Vltage and revolution frequency
NTCAP was restarted at the beginning and stopped at the end of the measuring period.
The NTCAP folder is 05-31_17-16-49 (system time 19:11) |
|
101
|
Tue May 31 19:37:30 2022 |
Carsten, Max, Wilfried | Detectors | SASZ and NASZ voltages switched off |
SASZ and NASZ voltages were switched off bevor we went back to 209Bi. Laser beam stabilization turned off. |
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102
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Tue May 31 19:59:49 2022 |
Carsten, Danyal | Accelerator | change in frequency mismatch 208Bi --> 209Bi |
time = 20:00
The RF has been adjusted so that it bunches at the correct frequency for 209Bi
For 208Bi the settings ("frequency mismatch") were:
-0.102 in SC5
-0,102 in SC11
For 209Bi the settings ("frequency mismatch") are (and were yesterday):
-0.83 in SC5
-0,83 in SC11 |