Difference between revisions of "09-08-2016"

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|5306 || || 11.1 MeV , 2 ns pulse width , 300 mA , '''200 Hz''' , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is EMPTY  , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Removed 3rd collimator wall, D30 has NO thick lead curtain, [[File:Rate2nC_5305.png|40px]]
 
|5306 || || 11.1 MeV , 2 ns pulse width , 300 mA , '''200 Hz''' , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is EMPTY  , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Removed 3rd collimator wall, D30 has NO thick lead curtain, [[File:Rate2nC_5305.png|40px]]
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|5307 || || 11.1 MeV , 2 ns pulse width , 250 mA , '''200 Hz''' , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is EMPTY  , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Removed 3rd collimator wall, D30 has NO thick lead curtain, [[File:Rate2nC_5305.png|40px]]
 
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|530 || || 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is '''~0.5 mm x 7 cm x 4 mm Th'''  , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Installed 3rd collimator wall, D30 has NO thick lead curtain [[File:Rate2nC_5305.png|40px]]
 
|530 || || 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is '''~0.5 mm x 7 cm x 4 mm Th'''  , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Installed 3rd collimator wall, D30 has NO thick lead curtain [[File:Rate2nC_5305.png|40px]]

Revision as of 15:18, 8 September 2016

Study forward detector gamma flash with Pb curtains

Run # D90 n Rate (Counts/pulse) Configuration
5302 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is DU , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Installed 3rd collimator wall, D30 has one 1/16" thick lead curtain Rate2nC 5302.png
5303 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is DU , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Installed 3rd collimator wall, D30 has NO lead curtain Rate2nC 5303.png

Thorium strip, collimator squeeze down.

Run # D90 n Rate (Counts/pulse) Configuration
5300 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is Empty , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Rate2nC 5300.png
5301 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to '0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is Empty , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand, Installed 3rd collimator wall, removed line of site between D30 and cell wall collimator Rate2nC 5301.png
5305 11.1 MeV , 2 ns pulse width , 300 mA , 90 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is EMPTY , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Removed 3rd collimator wall, D30 has NO thick lead curtain, Rate2nC 5305.png
5306 11.1 MeV , 2 ns pulse width , 300 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is EMPTY , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Removed 3rd collimator wall, D30 has NO thick lead curtain, Rate2nC 5305.png
5307 11.1 MeV , 2 ns pulse width , 250 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is EMPTY , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Removed 3rd collimator wall, D30 has NO thick lead curtain, Rate2nC 5305.png
530 11.1 MeV , 2 ns pulse width , 450 mA , 200 Hz , Accelerator side collimator open to 0.2563 cm, Cell side collimator OPEN to 2 cm , radiator 3/4" IN , Target is ~0.5 mm x 7 cm x 4 mm Th , D30 HV changed -1550V, All other detectors at -1700 V, removed pair spectrometer magnet, poly, and stand,Installed 3rd collimator wall, D30 has NO thick lead curtain Rate2nC 5305.png

No target run

Determine how many fissions per pulse.

run 1 mg HEU to see (probably miserable) rates

Exploratory measurements with 47% HEU.

CFD studies

P.S. sweep magnet in/out

Long run on Thorium

Long run on 1 mg HEU

2nCor_44#Run_Plan