Latest revision as of 23:10, 19 August 2015

DU runs

Gamma peak is revealed by comparing target in and target out runs.

Neutron Energy:

Watt distribution:

Odd TDC spectrum in the second hit:

Applying cuts based on TDC difference could help:

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:

@@ Line 1: / Line 1: @@
-=Run 4507=
+Go back [[2nCor_44]]
-*Neutron Seperation
+=DU runs=
-**Detector 1
+==TDC spectrum==
-[[file:Det1Seperationj.png|500 px]]
+[[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: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]]