Difference between revisions of "Cf252 NaI detector test. 12 Apr 2012"

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[https://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL go back]
 
  
NaI detector, -1030V, 300 mV threshold on gate channel, signal ADC4
 
 
 
 
{| border="1" cellspacing="0" style="text-align: center; width: 1000px "
 
! scope="col" width="8%" | Run #
 
! scope="col" width="15%" | source
 
! scope="col" width="15%" | shielding
 
! scope="col" width="8%" | cnts
 
! scope="col" width="8%" | rate
 
! scope="col" width="66%" | Comments
 
|-
 
|2775||Co-60 some distance away from NaI||2" Pb around, no front shielding|| || ||
 
|-
 
|2776||bkgd ||2" Pb around, no front shielding|| || ||
 
|-
 
|2777||Co-60 on NaI taped||2" Pb around, no front shielding || ||  ||clear 2 big 1.2 and 1.4 MeV peaks, small peak around 4.3 MeV
 
Calibration 1.4 MeV/575 cnls = 0.00243 MeV/cnl
 
|-
 
|2778||bkgd||2" Pb around, no front shielding || ||41.75 Hz ||
 
|-
 
|2779||bkgd||all around 2" Pb around|| ||15.74 Hz || good area around 2000-3800 channels
 
|-
 
|2780||Cf252||all around 2" Pb around|| ||12 kHz || Cf252 just in front of NaI
 
|-
 
|2781||Cf252||all around 2" Pb around|| ||5.4 kHz || Cf252 about 15 cm away from NaI
 
|-
 
|2782||Cf252||all around 2" Pb around|| ||1.1 kHz || Cf252 17" away from NaI
 
|-
 
|2784||Cf252||all around 2" Pb around||1,372,745 ||1,140 Hz || 20 min run
 
|-
 
|2785||Cf252||all around 2" Pb around||153,508 ||129.5 Hz || 20 min run. 2" Pb just after Cf252
 
|-
 
|2787||Cf252||all around 2" Pb around||1,231,537 ||1,024 Hz || 20 min run. 2" Borated Poly just after Cf252
 
|-
 
|2788||Cf252||all around 2" Pb around|| || || 20 min run. 2" White (no Br) Poly just after Cf252
 
 
 
 
|}
 

Latest revision as of 16:01, 17 April 2012