 Sat May 15 09:22:41 2021, Sebastian , Accelerator, Ekühler 
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Settings für Ekühler an und aus in SC4 und
5 |
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Tue May 11 16:07:59 2021, Sebastian, DAQ, DAQ Manual
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| Attached you'll find a short manual for operating the whole DAQ system |
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Wed May 12 08:32:04 2021, Sebastian, Analysis, fluorescence & energetic overlap
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During the night shift we saw several rises of the fluorescence (see another entry) and also energetic overlap in coasting beam modus.
Here the laser wavelength was stabilized @ 1028,967nm and electron cooler was switched off because of some fluctuations which we saw in the schottky.
Left part of the schottky picture shows the c3+ beam, the right part is the o4+ contamination. |
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Wed May 12 08:41:36 2021, Sebastian, Analysis, Laser stability
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| During night shift the laser was very stable! Only minor fluctuations occured in the UV |
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Wed May 12 08:42:49 2021, Sebastian, Analysis, Laser scans / coastig beam / no ecooler
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| Attached you'll see a first laser scan of ~100GHz in the UV. |
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Wed May 12 09:04:48 2021, Sebastian, DAQ, Keysight AUtoCal
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Wed May 12 09:09:15 2021, Sebastian, DAQ, Fluorescence
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fluorescence with detector in parking position
fixed laser wavelength
electron cooling ON,
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Wed May 12 19:48:24 2021, Sebastian, General, DSG821 Network
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To implement the bunch Signal Generator (DSG821 inside ESR) you have to:
1. unplug the Ethernet cable
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Wed May 12 22:48:25 2021, Sebastian, General, DSG Control SCPI Commands
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Open Ultra Sigma
Press LAN
Press Search, after a while the whole rigol devices are shown. Press ok
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Wed May 12 22:57:41 2021, Sebastian, General, Laser Reprate
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laser reprate is seven times the revoolution frequency: 9.038283 MHz
pulse length: 735ps |
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Thu May 13 01:13:06 2021, Sebastian, General, Bunching frequencies
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relating to Danyals ID 25 post are the current bunching frequencies:
h=2 --> 2,5823668 MHz
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Thu May 13 01:21:30 2021, Sebastian, General, Current schedule ... so far
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1.) check h=2,4,6,7,8,10 .... bunching frequencies with different amplitudes (signalgenerator), Ecooler ON, Laser OFF --> record schottky and "normal" DAQ
2.) Ecooler ON, Bunching ON, Laser ON (wavelength fixed and/or scanned)
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Thu May 13 01:55:15 2021, Sebastian, General, ESR amplifier reset / laser check
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we had to go into the ESR because the amplifiers hooked up. both amplifiers were resetted!
we also checked why we didnt see the laser at the exit window.
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Thu May 13 02:42:58 2021, Sebastian, General, Lasershutter ESR Entrance?!
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| attached should be the name of the entrance laser shutter. just in case somebody will close it ;) |
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Thu May 13 02:45:29 2021, Sebastian, Analysis, ESR pressure 8x
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Fri May 14 01:28:04 2021, Sebastian, General, "new" laser wavelength
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Minor changes in electron cooler voltage (~+13V, now 66903V measured by DMM) leads to that we had to shift the laser wavelength to:
1028,965nm
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Fri May 14 08:55:53 2021, Sebastian, General, ToDO 14.5 ...so far
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1.) ion lasser overlap and scraper test
2.) change bunching frequency to middle of ecooled coasting beam
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Fri May 14 09:00:55 2021, Sebastian, General, UNILAC Problems
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~30 min downtime
--> LASER ADJUSTEMENTS! |
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Fri May 14 21:43:40 2021, Sebastian, General, "problems accelerator"
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There are cooling problems of some accelerator devices
short break, hopefully :)
Laser is switched of for some rest |
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Sat May 15 09:23:52 2021, Sebastian, Accelerator, Ekühler
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Tab "Kühler Elektronenstrahl"
An Gerät schicken |