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  dN=0 experiment, Page 2 of 2  Not logged in ELOG logo
ID Date Author Categoryup Subject
  15   Tue Mar 30 11:03:17 2021 RobertRunsdata run for Li like
We startet run on Tuesday 2 am with ~4E7 decellerated ions. 
We get a count rate of ~40 cts per hour in the line.
Target density: ~1.5E12 part/cm2
  16   Tue Mar 30 11:24:51 2021 MartinoRunsTypical good cycles for He-like beam
Attachment 1: WhatsApp_Image_2021-03-30_at_11.16.25_(1).jpeg
WhatsApp_Image_2021-03-30_at_11.16.25_(1).jpeg
Attachment 2: WhatsApp_Image_2021-03-30_at_11.16.25.jpeg
WhatsApp_Image_2021-03-30_at_11.16.25.jpeg
  17   Thu Apr 1 21:24:14 2021 MartinoRunsH-like ion beam started for He-like
Starting the acquisition for the He-like U with a H-like U beam at 41.035 MEV/u
Gas jet detector: 2.38E12 part/cm2
Decelerated ions: 4.5E7 ions
Particle: about 1 MHz, saturated
Attachment 1: DSC_3217.JPG
DSC_3217.JPG
Attachment 2: DSC_3218.JPG
DSC_3218.JPG
  20   Sun Apr 4 15:26:57 2021 RobertRunsstability of ion beam current during He-like run
graph starts covers the whole he-like run from Thursday evening to monday afternoon
Attachment 1: ioncurrentHe-like-run.png
ioncurrentHe-like-run.png
  21   Mon Apr 5 16:07:36 2021 RobertRunsHe-like run
run started thursday 21/04/01 20:00,
ended monday 21/04/05 15:20, 
time span of 91.5 h,
we collected 4870 images with a esr cycle of ~62s, 
thats ~84 h of accumulation,
20 s gas jet on time, so we integrated 27,1 h of gas jet on

particle density was 2.25*10^12 particles /cm² at the beginning and increased continuously to 3.1*10^12 particles/cm²

ion beam intensity was between 4-5*10^7 stored, cooled particles per injection
  22   Tue Apr 6 14:27:59 2021 MartinoRunselectron cooler voltages
Parameter 	U90+ @ 30.160 MeV/u 	U91+ @ 41.035 MeV/u     U89+ @ 39.293 MeV/u 	
gamme 	        1.0324 	                1.04407                 1.0422 
Ue 	        16556 V 	        22520 V                 21564 V
delta U 	105 V 	                105 V                   105 V
USC (model) 	45 V 	                39 V                    40 V
Ie 	        100 mA 	                100 mA 	                100 mA
HV-Supply BG1E 	16706 V 	        22664 V                 21709 V
HV-divider 	16599 V 	        22553 V                 21598 V 


All data from the voltage divider will be collected and stored.
To be done: evaluation of the uncertainties, offset and linearity.
  24   Tue Apr 6 14:59:19 2021 RobertRunssecond Be-like run
run started 210405 17:50
run ended 210407 11:30
no of files: 1452
ion beam intensity: ~3-4*10^7 decellerated, stored ions in the beginning, only ~2*10^7 after the big break
  25   Wed Apr 7 11:51:54 2021 RobertRunsstability of ion beam current during Be-like run
Attachment 1: ioncurrent_Be_run.png
ioncurrent_Be_run.png
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