05-2-2017

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The He-3 detector output from the spec amp to the ADC had the wrong polarity

Electronics map for the two auxiliary scintillators

Phi Angle (Degrees)	PMT distance	Signal cable label	HV cable label	HV channel on Lecroy Mainframe	CFD CH	VNIM-ECL channel	ROOT variable
~282	m	102B1.2	shv1.2	5:L1.2	1	(left) B-0	evt.TDC[1][25]
~282	m	282T1.7	shv1.7	5:L1.7	2	(left) B-1	evt.TDC[1][26]

run list

He-3 timing is in patch panel 223A16, & energy is 223A17.

High voltage & discriminator settings:

30T: 1450;30 , 30B:1450;30 , 54T: 1500;30 , 54B: 1500;30 , 78T:1500;30 , 78B: 1525;30 , 126T: 1500;30 , 126B: 1500;30 , 150T: 1500;40 , 150B: 1500;40 , 210T: 1500;40 , 210B: 1500;40 , 234T: 1500;30 , 234B: 1500;30 , 258T: 1350;30, 258B: 1450;30 , 306T: 1400;30 , 306B: 1400;30 , 330T: 1450;30 , 330B: 1500;30

Radiator 1.5" Al.

Slits currently at 500 => 19 mm, at 75 =0, at 1000=38 mm, readback number is linear with slit width.

Small aux. scintillators have a CFD threshold of 0.550 V for run 6274 and later.

Run #	Charge/pulse	Target	Configuration	Individual histos + rates	overlayed histos	neutron coincidences per pulse	n-coin error	neutron coincidences per pulse per Amp	doubles/singles
6272	18 pV*s	D2O	7.5 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz ,			singles: 3.63E-03 doubles: 6.69E-06	singles: +- 4% doubles: +-100%	singles/A: 2.59E-03 doubles/A: 4.78E-06	doubles/single: 1.85E-03
6273	21 pV*s	0.5mm x 2cm x 4cm Th #170113000	7.5 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, teed off Beam current monitor changing pulse size from 21 pV*s to 14 pV*s , inserted beam current into PADC ch 6 20 minutes into run
6274	12 pV*s	0.5mm x 2cm x 4cm Th #170113000	7.0 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m,
6275	10 pV*s	Al	7.0 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m,
6276	10 pV*s	Al	7.0 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet
6278	10 pV*s	1" diam DU 111108007	7.0 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet
6279	12 pV*s	1" diam DU 111108007	9.0 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet
6280	11.5 pV*s	1" diam DU 111108007	10.6 MeV , 3 ns FWHM pulse width , 1.4 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet			singles: 5.13E-02 doubles: 1.37E-03	singles: +- 1% doubles: +-6%	singles/A: 3.67E-02 doubles/A: 9.78E-04	doubles/single: 2.67E-02
6282	11.5 pV*s	0.5 mm x 4 cm x 2 cm DU-238 R45020	10.6 MeV , 3 ns FWHM pulse width , 1.4 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, added 2" lead on beam right side of magnet			singles: 6.06E-03 doubles: 3.63E-05	singles: +- 1% doubles: +-19%	singles/A: 4.33E-03 doubles/A: 2.60E-05	doubles/single: 6.00E-03
6283	11.5 pV*s	0.5 mm x 4 cm x 2 cm DU-238 R45020	HV tripped around pulse 498,000 ; 10.6 MeV , 3 ns FWHM pulse width , 1.4 A Peak , 180.4 Hz , Removed small Scint at .725 m Kept Scint in at 1.45 m,		Histograms only includes pulses with HV on.
6284	11. pV*s	9 mm x 2cm x 4cm thick Al (1/10 R_0)	HV off for entire run.
6285	11. pV*s	9 mm x 2cm x 4cm thick Al (1/10 R_0)	10.6 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , Removed small Scint at .725 m Kept Scint in at 1.45 m,

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