 Fri Feb 28 05:53:59 2025, Denise, Sebastian, Benedikt, Calibration, Laserstrahllage mit Scraper
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Laserstrahl mit Hilfe der Blenden eingestellt, dann mit Scrapern vermessen
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Fri Feb 28 04:47:39 2025, Denise, Sebastian, Benedikt, Calibration, Gentec ESR Kalibration
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Unsicherheiten Gentecs im allgemeinen bei etwa 6.5%
Gentec NW (PH100 S:UV) OD.3
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Fri Feb 28 00:44:31 2025, Denise, Sebastian, DAQ, Shutter auf - Shutter zu Go4 Signale 
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Shutter auf (TDC Kanal 12 / Go4 Kanal TrS11_Shutter auf)
Shutter zu (TDC Kanal 13 / Go4 Kanal TrS12_Shutter zu)
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Fri Feb 28 00:35:46 2025, Benedikt, General, Anleitung Wellenlängenscan
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Es folgt eine Anleitung, wie die Wellenlänge des Lasersystems mit der PulsedLaserGUI gesteuert werden kann.
Vorbereitungen:
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Fri Feb 28 00:19:04 2025, Konstantin, Sebastian, Detectors, PMT power supply
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We checked the PMT signal inside the cave by using the local HV power supply. If one needs to repeat the measurement at another time, be careful to use
the correct HV power supply, since the second one, which is mounted in the crate has the wrong polarity. Both PMT's must be supplied with a negative voltage.
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Fri Feb 28 00:18:16 2025, Tamina, General, Kalibration UV Monitor im Laserlabor
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Der UV Monitor steht in der Reflexion des PBSC auf dem Lasertisch im Laserlabor.
P_Transmission = (1-(0.9364 * cos^2(0.0349* (theta - 33.014)) + 0.06043)) *P_Reflex
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Thu Feb 27 23:01:26 2025, Danyal, Konstantin, Sebastian , Calibration, Delaytime measurement
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Yesterday, we forgot to take the transit time of the PMT's into account when we set up the delay times of the detectors PMT middle, PMT north, PD SW, and
PD NW.
Today we did the measurement again and took transit times into account. Additionally, we finalized the cabling for the XUV detector.
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Thu Feb 27 21:23:02 2025, Jens, DAQ, Python Data Channels
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Python variables and names in DAQ
Because the Name of variables in DAQ doesnt match the the real variables, here is List of the channels and what value is in this channel
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Thu Feb 27 20:21:31 2025, Sebastian, General, 10 MHz Ref Clock (Butis)
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10 MHz Referenz Clock von BUTIS mit AFG als externl clock verbunden.
Wird benötigt das die Bunch Kavität (DDS System) in Phase mit AFG (Laserreprate) ist. |
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Thu Feb 27 16:30:57 2025, Konstantin und Rodolfo, DAQ, HF Signal
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| We have exchanged the HF-Signal in the DAQ Electronic: from Dummy-HF to the real HF from accelerator. |
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Thu Feb 27 11:19:55 2025, Danyal, Accelerator, pictures of the ion beam from 26.02.2025
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| Hier sind noch ein paar Bilder vom Ionenstrahl , wie er gestern Abend war. |
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Thu Feb 27 10:52:32 2025, Rodolfo, Detectors, Taking PMTs into operation
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[B]PMT Nord[/B] the power supply (CH0) is giving an alarm already by an applied voltage of -1707 V (operation voltage is -2450 V). It is leaking to much
current, larger than the set value of 310 uA. See attached picture 20250227_105411.jpg .
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Thu Feb 27 09:59:08 2025, Konstantin, Calibration, HV-Divider
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The readout of the HV divider runs on a RaspberryPi inside the HV-cave of the electron cooler.
Starting from 2025-02-27 09:42, the divider ratio was changed from 248517 to 248515. Usually, the
readout should run continuously. If not, the following procedure must be applied:
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Thu Feb 27 09:38:04 2025, Konstantin & Danyal, Detectors, Laufzeit Messungen
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Gestern Abend haben wir die Signal Laufzeiten im gemessen:
PMT Mitte: 1213 ns (bis zur Messhütte ohne DAQ sind es 1025 ns)
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Wed Feb 26 18:53:52 2025, Danyal, Accelerator, ESR settings
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Date: 26.02.2025 @ 18:35
E-cooler: HV = 157366 +/- 1 V (HV divider value)
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Tue Feb 25 14:51:52 2025, Danyal, General, Experiment Acceptance
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Today, 25 FEB 2025 at 9:00 AM, our experiment was reviewed carefully by the safety committee.
The experiment was accepted without problems.
All was fine, only minor comments were made and only a few short-notice actions were required.
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Tue Feb 25 13:12:01 2025, Sebastian, DAQ, Teilungsverhältnis Ohmlabs HVS250
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Hochspannung Maßstabsfaktoren
-140 kV >>> 248514
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Thu Feb 20 13:51:04 2025, Denise, Sebatian, DAQ, DAQ Channelliste
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[TABLE border="1"]
TDC Channels |
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Thu Feb 20 13:37:30 2025, Denise, Sebastian, DAQ, CFD Schwellen DAQ
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Schwellen fuer den CFD N842 (lascool)
Lasereinstellungen dabei waren: 0.5 Skalenteile -> 115ps Pulse
3.56654MHz Reprate
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Thu Feb 20 00:45:00 2025, Danyal, General, Doppler width of M1 transition
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According to Paul Indelicato
transition 3P1 -> 3P0 in 78Kr32+ :
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