Difference between revisions of "June 25,2007 Cf-252 measurements of total gamma-spectrum using HpGe ungated"
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=Data=<br> | =Data=<br> | ||
| − | + | Paraffin wax layer of thickness 12.6 cm was used as a neutron attenuator and for cosmic rays lead of thickness 10 cm on sides of <br>HpGe detector. Total time of the run was ~9 hours. Total number of counts: 11,157,085. The source was Cf-252 (activity 60μCi)<br> | |
| − | + | ||
==1. Energy region 0-1000 keV==<br> | ==1. Energy region 0-1000 keV==<br> | ||
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[[Image:jun25_Cf_paraffin3.jpg]]<br> | [[Image:jun25_Cf_paraffin3.jpg]]<br> | ||
| + | = Fits to selected spectra= | ||
| + | ==(i)=='<br> | ||
| + | [[Image:gaussian1.jpg]]<br> | ||
| − | + | <math>\sigma=0.42+/-0.011</math> keV<br> | |
| − | + | Max Energy shift=19.7 keV<br> | |
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| − | |||
| − | |||
| − | |||
| − | + | ==(ii)==<br> | |
[[Image:gaussian2.jpg]]<br> | [[Image:gaussian2.jpg]]<br> | ||
| − | + | <math>\sigma=0.49+/-0.07</math> keV<br> | |
| − | + | Max Energy shift caused by doppler effects should be 96.5 keV<br> | |
| − | + | ||
| − | + | ==(iii)==<br> | |
[[Image:gaussian3.jpg]]<br> | [[Image:gaussian3.jpg]]<br> | ||
| − | + | <math>\sigma=0.98+/-0.04</math> keV<br> | |
| − | + | Max Energy shift caused by doppler effects should be 172.81 keV<br> | |
| − | |||
Revision as of 19:57, 26 June 2007
=Data=
Paraffin wax layer of thickness 12.6 cm was used as a neutron attenuator and for cosmic rays lead of thickness 10 cm on sides of
HpGe detector. Total time of the run was ~9 hours. Total number of counts: 11,157,085. The source was Cf-252 (activity 60μCi)
==1. Energy region 0-1000 keV==
==2. Energy region 1000-2000 keV==
==3. Energy region 2000-3000 keV==
Fits to selected spectra
==(i)=='
keV
Max Energy shift=19.7 keV
==(ii)==
keV
Max Energy shift caused by doppler effects should be 96.5 keV
==(iii)==
keV
Max Energy shift caused by doppler effects should be 172.81 keV