11-11-2016
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Runlist
Horizontal accelerator side collimator 7 mm, horizontal cell side 19 mm. 3 in of Pb on D30 & D330, 2 in of Pb on upstream side of D210, wax in front of Pb on wall downstream of beam dump
| Run # | D90 n Rate (Counts/pulse)E-3 | Target | Configuration |
|---|---|---|---|
| 5446 | 0.53 | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 50 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5447 | 0.34 | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 70 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5448 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 30 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5449 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5450 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 60 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5451 | - | MT | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 60 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5452 | - | MT | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , |
| 5453 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , removed battleship steel (4" wide [beamleft/right] and 30 inches high [beam up/down], now its 9" wide and 13" high, green poly is on the bottom to prop up the steel |
| 5454 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 6" wide |
| 5455 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 4" wide |
| 5456 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 2" wide |
| 5457 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 0" wide (steel blinders are closed) |
| 5458 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 8" wide (steel blinders are closed) |
| 5459 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 7" wide (steel blinders are closed) |
| 5460 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , green poly is on the bottom to prop up the steel, steel blinder is 5" wide (steel blinders are closed), poly around Th target, front of blinder was 21" away from front of Alumionum brick wall, All bricks are 8" long so battle ship steel blinders began 29" away from rear wall, 
|
| 5461 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , No beam dump removed poly Th target, |
| 5462 | - | Th | 10.5 MeV , 2 ns FWHM pulse width , 1.1 A Peak , 180.4 Hz , Radiator 1" Al., discriminator thresh 40 mV, D30 @ -1450V and all other detectors at -1500 V , No beam dump removed poly' Th target, Added 2" thick Aluminum hardener downstream of sweep magnet |
Summary
ToF spectrum for 30, 40 50 and 70 mV thresholds.
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Blinder width study
Blinder as a photon source
Blinder blocking back wall source
With/Without Blinder
With/Without Hardener
