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  Dielectronic recombination-assisted laser spectroscopy, Page 4 of 6  Not logged in ELOG logo
ID Date Author Categorydown Subject
  51   Wed May 11 23:34:39 2022 Patrick, CarstenDetectorsParticle Detectors / Scraper positions
Voltages of particle detectors off.

Scraper positions:

GE02DS3HG: -8
GE01DD2AG: -25
GE01DD2IG: 6
GE02DD2_G: -30
  77   Mon May 16 22:57:40 2022 Patrick, Kristian, David, Ruijiu DetectorsSwitched off nitrogen
Background counts with nitrogen and air.
Less multiphoton events with air (see pictures, histogram extended to 30 with nitrogen).


Read in 4_Lasersteps/Counts

nitrogen:
XUV: 15e4
Middle: 8e4
North: 9e4

air:
XUV: 13e4
Middle: 1.2e4
North: 0.7e4
Attachment 1: 2022-05-16_PMTs_after_nitrogen_off.png
2022-05-16_PMTs_after_nitrogen_off.png
  80   Tue May 17 10:38:44 2022 KonstantinDetectorsPMT North changed
PMT located at the northern window was again replaced by the narrow-band PMT (ET Enterprise type 9423 SB, SN: 650).
  85   Mon May 30 01:13:40 2022 Konstantin, Max, PatrickDetectorsXUV-Detector voltage off
XUV-Detector shows up to 100 kHz and, therefore, was turned off.
  88   Mon May 30 08:35:41 2022 Kristian, Simon, Ken, RaganDetectorsChanged 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, RaganDetectorsXUV-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
  101   Tue May 31 19:37:30 2022 Carsten, Max, WilfriedDetectorsSASZ and NASZ voltages switched off
SASZ and NASZ voltages were switched off bevor we went back to 209Bi. Laser beam stabilization turned off.
  103   Tue May 31 21:08:04 2022 Carsten, MaxDetectorsXUV detector automation off
We deactivated the automation of the XUV detector. It stays out now.
  109   Fri Jun 3 12:01:17 2022 DanyalDetectorsswitched off XUV detector on 1 June ~17:00
I have switched off the XUV detector on 1 June at about 17:00. 
The high voltages of the MCP (in ESR laser lab) were turned off and inside the ESR cave the power supplies (coils and cathode) and the crate were turned off. 
Also the new "control box" for the detector was switched off. 
And I checked (visually) that the XUV detector (and the Cu detector too) were indeed "moved out". 

Danyal
  5   Tue Apr 26 16:28:14 2022 CarstenDAQCable of Bunch HF disconnected and 1.995Mhz signal connected for DAQ tests
see subject.
  8   Wed May 4 22:45:12 2022 Carsten, SebastianDAQQ-Switch Signal (ch15) fixed
The "dead" Q-Switch signal was converted 
two times... This explains why in the 
Thorium experiment the Q-Switch signal 
(ch15) was empty. 

First conversion from TTL to NIM in the 
ESR Laserlab and unfortunately the signal 
was plugged in a second Level Adapter as 
TTL in 
the Messhütte and was "again" converted 
into a NIM for DAQ1/2.

Now the Q-Switch is converted from TTL to 
NIM in the ESR Laserlab. The NIM is 
afterwards guided through a Logic Fan 
In/Out to the 2 DAQs. 
  12   Fri May 6 10:30:23 2022 SebastianDAQlaser busy / dye out signal fixed
Solution for a working laser busy / dye out signal was to disable the FCU and set the FCU status to "False" (see attached picture).

Remark: FCU unit will not be used for Bismuth experiment!
Attachment 1: CobraFix_LaserBusy.PNG
CobraFix_LaserBusy.PNG
  13   Fri May 6 10:35:06 2022 SebastianDAQlaser step complete cabling changed
I changed the laser step complete cabling from a quad coinc (see attached picture) to a Logic Fan In / Fan out (same as laser scan complete).
The "detour" through the quad coinc yielded to a very short laser step complete signal of ~500ns...

Due to the change it is now ~15µs long and has the same length as the laser scan complete signal (~15µs).
Attachment 1: stepComplete_beforeChange_QuadCoincCabling.PNG
stepComplete_beforeChange_QuadCoincCabling.PNG
  20   Mon May 9 17:01:02 2022 CarstenDAQdirectories / paths / comments / reduction factors /startup.scom files for the 2 DAQs
DAQ1 (original):
-user atplaser
-runs on lxg1050
-data in lxg1297:/data.lcoal2/208Bi
-go4 in ~/go4/208Bi
-mbs /esr/usr/atplaser/mbsrun/208Bi

Since the Go4 Code is still under development (clean up etc.), I still plan to submit regular updates, the last version before is always in ~go4/208Bi
It is planne that all essentialy settings can be done via the automatically loaded script files SetParamters.C and SetConditions.C, so that no recompilation (and change of code) is required (work in progress).

DAQ2 (new / enhanced):
additional 25ps TDC and ADC
-user stoe_exp
-runs on lxg0155
-data in lxg0155:/data.lcoal2/E128
-go4 in ~/E128
-mbs /esr/usr/stoe_exp/E128

There are no two different startup-files on each system (startup.scom and startup0.scom)
i.e. @startup0 in mbs -> Starts everything WITHOUT file writing
and @startup in mbs -> Starts everything WITH file writing (including onnect rfio and open file). For this, rawDispRFIO64, has to be started (locally __IN__ the data directory).


Please note that the different path and file names are on purpose, so that they can be distinguished after the run.
  21   Mon May 9 17:14:02 2022 CarstenDAQNTCAP DAQ
The NTCap DAQ computer in the HKR (Schottky logbook) is started, and all preparations for data taking (mounting of NAS etc.) are done.
Parameters for NTCAP DAQ will be adjusted as soon as beam is available. 
  23   Mon May 9 19:05:17 2022 WilfriedDAQQ-Switch signals + 0.5 ms and +1 ms in VUPROM
We have generated two additional signals which are fed into two VUPROM channels:
Q-Switch + 0.5 ms --> channel 9
Q-Switch + 1.0 ms --> channel 10
(channel numbering 0-15)
The delays are generated by the two channels of a DGG222
  31   Tue May 10 22:29:45 2022 Jan GloriusDAQDAQ2 shaper settings
Attached are the MSCF shaper settings applied on Tue May 10 at 22:30.
Attachment 1: setting_e128.v1
1652214506
Tue May 10 22:28:26 CEST 2022
e127pi:mrcc:mscf2:getGainCommon 15
e127pi:mrcc:mscf2:getShapingTimeCommon 0
e127pi:mrcc:mscf2:getThresholdCommon 200
e127pi:mrcc:mscf2:getPzCommon  255
e127pi:mrcc:mscf2:getGain1     15
e127pi:mrcc:mscf2:getGain2     10
e127pi:mrcc:mscf2:getGain3     15
e127pi:mrcc:mscf2:getGain4     15
e127pi:mrcc:mscf2:getShapingTime1 0
e127pi:mrcc:mscf2:getShapingTime2 0
e127pi:mrcc:mscf2:getShapingTime3 0
e127pi:mrcc:mscf2:getShapingTime4 1
e127pi:mrcc:mscf2:getThreshold1 255
e127pi:mrcc:mscf2:getThreshold2 3
e127pi:mrcc:mscf2:getThreshold3 4
e127pi:mrcc:mscf2:getThreshold4 255
e127pi:mrcc:mscf2:getThreshold5 222
e127pi:mrcc:mscf2:getThreshold6 2
e127pi:mrcc:mscf2:getThreshold7 20
e127pi:mrcc:mscf2:getThreshold8 255
e127pi:mrcc:mscf2:getThreshold9 2
e127pi:mrcc:mscf2:getThreshold10 10
e127pi:mrcc:mscf2:getThreshold11 255
e127pi:mrcc:mscf2:getThreshold12 255
e127pi:mrcc:mscf2:getThreshold13 100
e127pi:mrcc:mscf2:getThreshold14 255
e127pi:mrcc:mscf2:getThreshold15 255
e127pi:mrcc:mscf2:getThreshold16 255
e127pi:mrcc:mscf2:getPz1       100
e127pi:mrcc:mscf2:getPz2       100
e127pi:mrcc:mscf2:getPz3       100
e127pi:mrcc:mscf2:getPz4       100
e127pi:mrcc:mscf2:getPz5       100
e127pi:mrcc:mscf2:getPz6       100
e127pi:mrcc:mscf2:getPz7       100
e127pi:mrcc:mscf2:getPz8       100
e127pi:mrcc:mscf2:getPz9       100
e127pi:mrcc:mscf2:getPz10      100
e127pi:mrcc:mscf2:getPz11      100
e127pi:mrcc:mscf2:getPz12      100
e127pi:mrcc:mscf2:getPz13      100
e127pi:mrcc:mscf2:getPz14      100
e127pi:mrcc:mscf2:getPz15      100
e127pi:mrcc:mscf2:getPz16      100
e127pi:mrcc:mscf2:getSingleChMode 1
e127pi:mrcc:mscf2:getRcMode    1
e127pi:mrcc:mscf2:getAutoPZ    18
e127pi:mrcc:mscf2:getMultiplicityHi 8
e127pi:mrcc:mscf2:getMultiplicityLo 0
e127pi:mrcc:mscf2:getSumTrgThresh 18
e127pi:mrcc:mscf2:getBlrOn     1
e127pi:mrcc:mscf2:getCoincTime 121
e127pi:mrcc:mscf2:getThreshOffset 70
e127pi:mrcc:mscf2:getShaperOffset 35
e127pi:mrcc:mscf2:getBlrThresh 25
e127pi:mrcc:mscf2:getECLDelay  18
  32   Tue May 10 22:37:10 2022 Jan GloriusDAQDAQ2 cabling docu
Attachment 1: e128_daq2_cabling.ods
  43   Wed May 11 14:48:31 2022 KonstantinDAQVoltage range of the Keysight DMM changed from 10V to 1V
During the setup of the ion beam the voltage range of the Keysight DMM was changed from 10V to 1V. Additionally, the name of the high-voltage divider was adjusted (this changes only the filename of the file, which is stored at the local pc decpc003).
Attachment 1: VoltageRangeChanged.png
VoltageRangeChanged.png
  46   Wed May 11 18:13:04 2022 Wilfried, Phillip, MaxDAQlaser scan/step complete
The scaler channel laser scan complete and laser step complete is interchanged in go4. Carsten will fix this on the software side.
Additionally the laser scan complete signal was not there in the first place. After checking the signal on multiple points, the signal was suddenly back in the DAQ.
Possibly there is a bad cable/contact somewhere (on the Labjack?). The signal should be checked in go4 from time to time. 
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