JB Anaysis: Difference between revisions
Jump to navigation
Jump to search
| Line 48: | Line 48: | ||
==Opening angles== | ==Opening angles== | ||
Uncorrelated distribution: | Uncorrelated distribution of neutron events from detectors 1-4: | ||
[[File:Snip20150729 3.png|500 px]] | [[File:Snip20150729 3.png|500 px]] | ||
Revision as of 04:39, 30 July 2015
DU runs
Neutron-Gamma Seperation
Detector 1
Detector 2
Detector 3
Detector 4
Target in vs. target out
Gamma peak is revealed by comparing target in and target out runs.
(open the file to see it clearly)
ToF
[math]\displaystyle{ Neutron TOF=\frac{PMT_{top}+PMT_{bottom}}{2}-t_{\gamma peak}+\gamma_{TOF} }[/math]
Energy
Neutron Energy=[math]\displaystyle{ \frac{1}{2}m_{n}\left(\frac{in}{ns}\right)^2=3.372\left(\frac{42}{t}\right)^2 MeV }[/math]
Watt distribution: [math]\displaystyle{ Ce^{-aE^'}sinh\left(\sqrt{bE^'}\right) }[/math]
Second Hit
Odd TDC spectrum in the second hit:
Applying cuts based on TDC difference could help:
Opening angles
Uncorrelated distribution of neutron events from detectors 1-4:
