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  Nuclear hyperfine mixing in 229Th89+  Not logged in ELOG logo
Message ID: 47     Entry time: Fri Apr 1 00:27:27 2022
Author: Carsten 
Category:  
Subject: Settings Particle Detectors /Tests with primary beam 
All the beam settings will be given in a separate post.

We have 238U92+ centered in the ring with typically a few times 10⁷ ions.

SA_SZ (GE02DD2_G): Voltage 1200 V, Recomnied peak was scraped at about -50 mm, set the detector position to -25 mm 
We see very clean signals with amplitude 1,5V (Foto will follow). Threshhold: CFD "25" arb. units. count rate 8kHz - 10 kHz
Rise time 6ns (with all the cables).

NA_SZ (GE01DD2AG): No signals - cables in the ESR need to be checked

NI_SZ (GE01DD2IG): Can not be positioned, error from Control system: "Auftr. Stattus position set value out of range", Drive can however be positioned to the "Endlage innen" and "Endlage außen".

The Test above were with a DC beam. With a bunched beam we more rapidly loose the ions with the particle detector.
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