Latest revision as of 23:10, 19 August 2015

DU runs

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

[math]\displaystyle{ Neutron TOF=\frac{PMT_{top}+PMT_{bottom}}{2}-t_{\gamma peak}+\gamma_{TOF} }[/math]

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)=0.708 e^{-0.884 E^'}\sinh \left(\sqrt{E^'}\right) }[/math]

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: @@
+Go back [[2nCor_44]]
 =DU runs=
 ==TDC spectrum==
-Detector 1
+[[DTC]]
-[[File:Det1TDC.png| 500 px]]
-Detector 2
-[[File:Det2tdc.png| 500 px]]
-Detector 3
-[[File:Det3DTC.png| 500 px]]
-Detector 4
-[[File:Det4TDc.png|500 px]]
 ==Target in vs. target out==
 Gamma peak is revealed by comparing target in and target out runs.
-[[File:Secondhits2.png | 1110 px]]
+[[File:Gammas(2).jpg | 950 px]]
 [[2nCor_44#Analysis]]
@@ Line 42: / Line 29: @@
 Odd TDC spectrum in the second hit:
-[[File:SecondHit1.png|500 px]]
+[[File:Snip20150815 28.png | 1110 px]]
 Applying cuts based on TDC difference could help:
-[[File:SecondHit.png|500 px]]
+[[File:SecondHit.png|1000 px]]
 ==Opening angles==
 Uncorrelated distribution from detectors 1-4:
-[[File:Snip20150729 3.png|500 px]]
+[[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| 500 px]]
+[[File:CorrOverUncorR.png| 750 px]]
 As a test I did the same for gamma events:
-[[File:Gammacorrelation.png| 500 px]]
+[[File:Snip20150815 29.png| 500 px]]
+Go back [[2nCor_44]]