Difference between revisions of "UnderGraduate Neutron Correlations Lab"
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| Line 25: | Line 25: | ||
PAA->Draw("PADC.PADC785N[4]*0.45>>(4096,0,4096)") | PAA->Draw("PADC.PADC785N[4]*0.45>>(4096,0,4096)") | ||
| + | |||
| + | To save thehistogram under the name Cs137 | ||
| + | |||
| + | PAA->Draw("PADC.PADC785N[4]*0.45>>Cs137(4096,0,4096)") | ||
| + | |||
To normalize the histogram by a run time of 2600 seconds | To normalize the histogram by a run time of 2600 seconds | ||
| + | 1/3600=0.0002778 | ||
| + | |||
| + | Cs137->Scale(0.0002778) | ||
| + | Cs137->Draw(); | ||
| + | |||
| + | run 6816 background (~300Hz) | ||
| + | 1/47 = 0.021277 | ||
| + | |||
| + | run 6817 signal (~600 Hz) | ||
| + | 1/75 =0.013333 | ||
| + | [[File:NaI_Cs137_4-22-21.png]] | ||
Revision as of 21:59, 22 April 2021
[[1]]
NaI detector setup
Creating ROOT data files
source ~/CODA/setup
/home/daq/CODA/CODAreader/ROOT_V5.34/PAA/evio2nt -fr6815.dat > /dev/null
Analyzing ROOT data file
root -l r8735.root
to draw a histogram for Peak ADC channel 4
PAA->Draw("PADC.PADC785N[4]>>(4096,0,4096)")
To scale the histogram using an energy calibration of 0.45 keV/channel
PAA->Draw("PADC.PADC785N[4]*0.45>>(4096,0,4096)")
To save thehistogram under the name Cs137
PAA->Draw("PADC.PADC785N[4]*0.45>>Cs137(4096,0,4096)")
To normalize the histogram by a run time of 2600 seconds
1/3600=0.0002778
Cs137->Scale(0.0002778) Cs137->Draw();
run 6816 background (~300Hz) 1/47 = 0.021277
run 6817 signal (~600 Hz) 1/75 =0.013333
[[2]]