Collimators and Collimation Insert Design

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Collimators and Collimation Insert Design

• A. Komives

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Penelope Monte Carlo
400 and 350 Gauss Magnetic Field
Scatter Ratio RscattNscatt/Ndet
DUNPL
3
1.025

• Tungsten
• Washer shape
• 0.05 cm thick
• 17 collimators
• Staggered

1.281
1.538
1.794
2.05
2.306
2.563
2.819
3.075
3.331
3.588
3.844
4.1
4.356
4.613
4.869
DUNPL
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Magnetic SusceptibilityM. Rose (08), E. Newell
(10)
Neodymium magnet
substance
Balance
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Prices and Suppliers

• Eagle Alloy 34 4x4x20 mil pure W
• 42 4x4x 20 mil Cu, W, Ni

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17 Collimators
50 kev 8028 events Max rad 1.93 cm
300 keV 8371 events Max rad 2.73 cm
800 keV 2334 events Max rad 2.61 cm
500 keV 554 events Max rad 2.47 cm
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1.286

• Tungsten
• Washer shape
• 0.05 cm thick
• 15 collimators
• Staggered

1.607
1.93
2.250
2.571
2.893
3.214
3.536
3.857
4.179
4.500
4.821
5.143
5.464
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15 Collimators
50 keV 39503 events Max rad 1.93 cm
100 keV 11610 events Max rad 2.76 cm exceed
2.75 cm1
300 keV 6752 events Max radius 4.38 cm exceed
2.75 cm 1
200 keV 9592 events Max rad 2.79 cm exceed
2.75 cm 1
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15 Collimators
600 keV 4842 events Max rad 2.85 cm exceed
2.75 cm 1
400 keV 1000 events Max rad 4.59 cm exceed
2.75 cm 1
800 keV 2077 events Max rad 9.79 cm exceed
2.75 cm 3
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