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| [https://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL go back]
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| ==041212==
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| *NaI detector,
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| * 300 mV threshold on gate channel
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| * signal ADC4
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| *-1030V at the beginning
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| *-1055V at the end of run
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| {| border="1" cellspacing="0" style="text-align: center; width: 1000px "
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| ! scope="col" width="8%" | Run #
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| ! scope="col" width="15%" | source
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| ! scope="col" width="15%" | shielding
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| ! scope="col" width="8%" | cnts
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| ! scope="col" width="8%" | rate
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| ! scope="col" width="66%" | Comments
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| |-
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| |2775||Co-60 away from NaI ||2" Pb around, no front shielding ||133,884 || ||
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| |2776||bkgd ||2" Pb around, no front shielding ||7,289 || ||
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| |2777||Co-60 infront of NaI ||2" Pb around, no front shielding ||313,427 ||
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| |align="left"|1.2 and 1.4 MeV peaks, small peak around 4.3 MeV
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| Calibration 1.4 MeV/575 cnls = 0.00243 MeV/cnl
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| |-
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| |2778||bkgd||2" Pb around, no front ||15,822 ||41.75 Hz ||
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| |2779||bkgd||all around 2" Pb around ||8,566 ||15.74 Hz ||align="left"|good area around 2000-3800 channels
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| |-
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| |2780||Cf252||all around 2" Pb around|| ||12 kHz ||align="left"|Cf252 just in front of NaI
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| |2781||Cf252||all around 2" Pb around|| ||5.4 kHz ||align="left"|Cf252 about 15 cm away from NaI
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| |2782||Cf252||all around 2" Pb around||607,790 ||1.1 kHz ||align="left"|Cf252 17" away from NaI
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| |2784||Cf252||all around 2" Pb around||1,372,745 ||1,142 Hz ||align="left"|20 min run. No shielding in front
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| |2785||Cf252||all around 2" Pb around||153,508 ||129.5 Hz ||align="left"|20 min run. 2" Pb just after Cf252
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| |2787||Cf252||all around 2" Pb around||1,231,537 ||1,024 Hz ||align="left"|20 min run. 2" Borated Poly just after Cf252
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| |2788||Cf252||all around 2" Pb around||1,225,232 ||1,020 Hz ||align="left"|20 min run. 2" Unborated Poly just after Cf252
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| |2790||Cf252||all around 2" Pb around||132,067 ||111.6 Hz ||align="left"|20 min run. 2" Pb, 2" Borated Poly just after Cf252
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| |2791||Cf252||all around 2" Pb around||108,603 ||89.6 Hz ||align="left"|20 min run. 4" Pb just after Cf252
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| |2792||bkgd ||all around 2" Pb around||45,904 ||25.04 Hz ||align="left"|20 min run. background checking
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| |}
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| * rise time of NaI 50 ns
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| * decay time of NaI 3 us
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| *run 2784: Cf252 no shielding infront. 1,372,745 events
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| [[File:Cf no shielding infront.png | 700px]]
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| *run 2787: Cf252 2" Borated Poly infront. 1,231,537 events
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| [[File:Cf 2inchBoratedPoly infront.png | 700px]]
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| *run 2788: Cf252 2" Unborated Poly infront. 1,225,232 events
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| [[File:Cf 2inchUnBoratedPoly infront.png | 700px]]
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| *run 2792: background checking. 45,904 events
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| [[File:Background.png | 700px]]
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| *run 2785: Cf252 2" Pb infront. 153,508 events
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| [[File:Cf 2inchPb shlng infront.png | 700px]]
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| *run 2790: Cf252 2" Pb + 2" Borated Poly infront. 132,067 events
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| [[File:Cf 2inchBoratedPoly 2inchPb.png | 700px]]
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| *run 2791: Cf252 4" Pb infront. 108,603 events
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| [[File:Cf 4inchPb shlng infront.png | 700px]]
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| ==041312==
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|
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| *NaI detector,
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| * 300 mV threshold on gate channel
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| * signal ADC4
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| *-1036V switched to modern power supply
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| {| border="1" cellspacing="0" style="text-align: center; width: 1000px "
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| ! scope="col" width="8%" | Run #
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| ! scope="col" width="10%" | source
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| ! scope="col" width="8%" | cnts
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| ! scope="col" width="8%" | rate
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| ! scope="col" width="66%" | Comments
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| |-
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| |2793||background || ||
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| |align="left"|detector + 2" Pb around + 2" Poly around
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| |-
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| |2794||Cf252 || ||
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| |align="left"|Cf252 17 inch away from detector
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| |-
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| |2799||background ||216941 ||37.86 Hz
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| |align="left"|background long 108 min run
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| detector + 2" Pb around (except on the top of detector was 2" Al) + 2" Poly around
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| |-
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| |2800||background || ||
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| |align="left"|background long run
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| detector + 2" Pb around + 4" Poly borated and unborated around, no Al inside
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| |-
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| |}
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| [[File:Bkg.png |500px]]
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| [[File:Cf252 Al aroundandIn.png |500px]]
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| [[File:Cf252 4inPb Al aroundandIn.png |500px]]
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| [[File:Cf252 5inPb Al aroundandIn smallBin.png |500px]]
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| [[File:Cf252 5inPb Al aroundandIn wholeBin.png |500px]]
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| [[File:Cf252 5inPb Al aroundandIn noBin.png |500px]]
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| *run 2799
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| [[File:Background run.png | 500px]]
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| *run 2800
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