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  proton-capture on 118Te  Not logged in ELOG logo
Message ID: 247     Entry time: Mon Mar 23 14:02:07 2020
Author: Ragan 
Category: Runs 
Subject: run entry - run104, scrapper is removed 
Year:  

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 , first file: run102_0001.lmd
run stop  at , last file:  run_0xxx.lmd

_______________________________________________________________________________

time: 14:02

ON Rates
Si_X:       0 Hz
Si_Y:       0 Hz
Xray_35:    00 Hz
Xray_90:    34 Hz
Xray_145:   47 Hz
BaF_OR:     ---

Si voltage:          60.02 V  
Si leakage current:  4.34 uA with spikes for 3s long after injection roughly 10uA


SIS particles before:           3.13e9
ESR current at injection:       5.8e7?? (we see a bug: like the number of particles increases in the bunching phase)
ESR particles after decel.:     1.71e7? (it is hard to catch exactly)
Target ON density:              3.95e13

copy and repeat the above (below the line) every 30 minutes
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