HOME ESR EXPERIMENTS LABS etc
E121 E127 E132 E125 E143 laser_cooling_2021 E142 Ê128 E146 E0052 E0018 E0028
  Nuclear hyperfine mixing in 229Th89+ 2024  Not logged in ELOG logo
Message ID: 59     Entry time: Thu Jun 13 10:32:29 2024
Author: Konstantin 
Category: Accelerator 
Subject: (Proper) Cooler settings 
We change the acceleration voltage of the electron cooler and observe the platform high voltage and the count rate at the particle detector south.
Cooler current at 100mA.


set voltage measured voltage Schottky width
-40
80
-40
100
120
-40
-60
-80
-100
-120
-38
-40
-42
-44
-46
-48
-40
-38
-36
-34



with scraper driven in (first signal drop in attachment 2):

set voltage measured voltage Schottky width
-40
-38
-36
-34
-32
-30
-20 25kHz
-10 48kHz
-0 63kHz
-40
-42
-44
-46
-56 7kHz
-66 19kHz
-76 40kHz


5kHz Shottky width at proper cooling conditions.

Modified bunching HF in beam process 7 and 10 in Paramodi folder "Ring HF" to get coasting beam conditions.

Afterwards manipilated the electron current from 100mA to 200mA to 50mA in BP8.
ELOG V3.1.5-fc6679b