open file : run102
beam: 124Xe54+
energy: 10 MeV/u
we run at MAX INTENSITY as we can: SIS was increased to its top, but unfortunately we still end up with 1.5e9 at injection from SIS. Sergey also optimized some stuff.
purpose: data with TARGET ON and SCRAPER OFF --> this leakage current spikes associated with primary scattering from the scraper edge seem to disappear, but we get still 10kHz rate on the detector a few sec after injection(this small "bump"
after the peak in the Si current - see the picture below)
Detector position (Si): -27 mm
GE01DD1IG position (Scraper): 9 mm
run start at 12:49, first file: run102_0001.lmd
run stop at , last file: run_0xxx.lmd
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time: 12:55
ON Rates
Si_X: 1 Hz
Si_Y: 1 Hz
Xray_35: 2 Hz
Xray_90: 70 Hz
Xray_145: 50 Hz
BaF_OR: ---
Si voltage: 60.02 V
Si leakage current: 4.31 uA with spikes for 3s long after injection roughly 10uA
SIS particles before: 2.7e9
ESR current at injection: 5.8e7?? (we see a bug: like the number of particles increases in the bunching phase)
ESR particles after decel.: 1.5e6? (it is hard to catch exactly)
Target ON density: 4.6e13
copy and repeat the above (below the line) every 30 minutes |