Burgjeff at 10:51, 27 May 2016

2016-05-27T10:51:23Z

Burgjeff: Created page with " =DU runs= ==TDC spectrum== DTC ==Target in vs. target out== Gamma peak is revealed by comparing target in and target out runs. 950 px ==ToF== <…"

2016-04-13T03:55:36Z

Created page with " =DU runs= ==TDC spectrum== DTC ==Target in vs. target out== Gamma peak is revealed by comparing target in and target out runs. 950 px ==ToF== <…"

New page

=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]]

==ToF==
<math>Neutron TOF=\frac{PMT_{top}+PMT_{bottom}}{2}-t_{\gamma peak}+\gamma_{TOF}</math>

[[target_in_vs_target_out_ToF]]

[[File:ToF.png| 1000 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: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]]

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March 2015 runs @ IAC - Revision history

Burgjeff at 10:51, 27 May 2016

Burgjeff: Created page with " =DU runs= ==TDC spectrum== DTC ==Target in vs. target out== Gamma peak is revealed by comparing target in and target out runs. 950 px ==ToF== <…"