 Fri Feb 28 20:44:04 2025, Konstantin, DAQ, Updated Channel list
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Final (hopefully) channel list:
[TABLE border="1"]
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Fri Feb 28 19:33:03 2025, Volker, Detectors, Laser background
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We measured the laser background rate in the XUV detector.
The voltages applied were +300V at the MCP front, +2250V at the MCP anode.
Trigger threshold at ca. 40 mV.
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Fri Feb 28 17:36:15 2025, Konstantin, DAQ, Trigger events from accelarator 
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| We will use GENESIS to create trigger events (injection, ...) for the DAQ |
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Fri Feb 28 17:18:34 2025, Tamina, General, Laserwellenlängen zur Orientierung
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Minimale Wellenlänge: IR 1028,7 nm --> 257,175 nm im UV (DFB Temperatur sollte ca. be 16,5 °C sein)
Maximale Wellenlänge: IR 1030,7 nm --> 257,675 nm UV (DFB TEmperatur sollte ca. bei 35,6 °C sein)
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Fri Feb 28 16:46:51 2025, Tamina, Jens, Calibration, Synchronisation von Laserpulsen mit Bunchingfrequenz
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Die Syncronisation der Reprate des Lasers mit der Bunchingfrequenz wird mit einem Oszi zusammen aufgenommen/gemessen.
Trigger auf RF Bunching, dann gucken in welche Richtung der Laser abhaut. Bewegt sich der Puls relativ zum zur Bunch HF nach rechts, ist die Reprate am
AFG zu hoch, wenn er
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Fri Feb 28 15:53:44 2025, Konstantin, Accelerator, HF Signal for Bunching
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The HF Bunching Frequency is: 1.7838817 MHz
Given (read) by the ESR operators in HKR. |
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Fri Feb 28 15:30:41 2025, Tamina, Rodolfo, Detectors, Fast PD Nord West
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We had an issue with the PD NW. The signal after the Rate Divider was not OK.
The problem was that the signal after the Delay Generator GG8000, the width, was too short. We have now changed the width and made similar to the PD SW. |
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Fri Feb 28 13:53:06 2025, Tamina, Rodolfo, Runs, Ionenbunch
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Signal of PMT-Mitte. Recorded with an unstable ion bunch. With approx. 3E8 Ions
The second screenshot is showing a similar signal with 1.8E8 Ions |
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Fri Feb 28 08:57:30 2025, , General,
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28.2.25
Morning shift Aufgaben(nach Sebas:
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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. |