Difference between revisions of "05-1-2017"

From New IAC Wiki
Jump to navigation Jump to search
Line 34: Line 34:
 
|-
 
|-
 
| 6274|| 12 pV*s || Th || , '''7.0 MeV''' , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz , small Scint at .725 m and 1.45 m, ||  ||  ||  
 
| 6274|| 12 pV*s || Th || , '''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||  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, ||  ||  ||
 
|}
 
|}
  

Revision as of 16:45, 2 May 2017

go_back


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 All PMT's no coinc.
6272 18 pV*s D2O 7.5 MeV , 3 ns FWHM pulse width , 1.3 A Peak , 180.4 Hz ,
6273 21 pV*s Th 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 Th , 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 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,






go_back