Difference between revisions of "JB Anaysis"
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| − | = | + | Go back [[2nCor_44]] |
| − | == | + | =DU runs= |
| − | + | ==TDC spectrum== | |
| + | [[DTC]] | ||
| − | [[ | + | ==Target in vs. target out== |
| + | Gamma peak is revealed by comparing target in and target out runs. | ||
| + | |||
| + | [[File:Gammas(2).jpg | 950 px]] | ||
| + | |||
| + | [[2nCor_44#Analysis]] | ||
| + | |||
| + | ==ToF== | ||
| + | <math>Neutron TOF=\frac{PMT_{top}+PMT_{bottom}}{2}-t_{\gamma peak}+\gamma_{TOF}</math> | ||
| + | [[File:Det4ToF.png| 500 px]] | ||
| + | |||
| + | ==Energy== | ||
| + | Neutron Energy: | ||
| + | |||
| + | <math>\frac{1}{2}m_{n}\left(\frac{in}{ns}\right)^2=3.372\left(\frac{42}{t}\right)^2 MeV</math> | ||
| + | |||
| + | Watt distribution: | ||
| + | |||
| + | <math>Ce^{-aE^'}\sinh\left(\sqrt{bE^'}\right)=0.708 e^{-0.884 E^'}\sinh \left(\sqrt{E^'}\right)</math> | ||
| + | |||
| + | [[File:Watt.jpg|1000 px]] | ||
| − | + | ==Second Hit== | |
| + | Odd TDC spectrum in the second hit: | ||
| − | [[ | + | [[File:Snip20150815 28.png | 1110 px]] |
| − | + | Applying cuts based on TDC difference could help: | |
| − | [[ | + | [[File:SecondHit.png|1000 px]] |
| − | + | ==Opening angles== | |
| + | Uncorrelated distribution from detectors 1-4: | ||
| − | [[File: | + | [[File:Snip20150729 3.png|750 px]] |
| − | + | Analyzing 5653446 pulses from DU runs, I was able to find 349 two-neutron events in detectors 1-4. | |
| − | + | ||
| − | + | [[File:CorrOverUncorR.png| 750 px]] | |
| + | |||
| + | As a test I did the same for gamma events: | ||
| − | [[ | + | [[File:Snip20150815 29.png| 500 px]] |
| − | |||
| − | + | Go back [[2nCor_44]] | |
| − | [[ | ||
| − | |||
| − | |||
Latest revision as of 23:10, 19 August 2015
Go back 2nCor_44
DU runs
TDC spectrum
Target in vs. target out
Gamma peak is revealed by comparing target in and target out runs.
.jpg)
ToF
Energy
Neutron Energy:
Watt distribution:
Second Hit
Odd TDC spectrum in the second hit:
Applying cuts based on TDC difference could help:
Opening angles
Uncorrelated distribution from detectors 1-4:
Analyzing 5653446 pulses from DU runs, I was able to find 349 two-neutron events in detectors 1-4.
As a test I did the same for gamma events:
Go back 2nCor_44