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| [https://wiki.iac.isu.edu/index.php/PhotoFission_with_Polarized_Photons_from_HRRL go back]
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| NaI detector, -1030V, 300 mV threshold on gate channel, signal ADC4
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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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| |2775||Co-60 some distance away from NaI||2" Pb around, no front shielding|| || ||
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| |2776||bkgd ||2" Pb around, no front shielding|| || ||
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| |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
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| Calibration 1.4 MeV/575 cnls = 0.00243 MeV/cnl
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| |2778||bkgd||2" Pb around, no front shielding || ||41.75 Hz ||
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| |2779||bkgd||all around 2" Pb around || ||15.74 Hz ||align="left"|good area around 2000-3800 channels
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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|| ||1.1 kHz ||align="left"|Cf252 17" away from NaI
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| |2784||Cf252||all around 2" Pb around||1,372,745 ||1,140 Hz ||align="left"|20 min run
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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" NoBorated 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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| |}
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| rise time of NaI 50 ns
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| decay time of NaI 3 us
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| [[File:Cf 2inchBoratedPoly infront.eps]]
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