8. The isotropic circular dise source of Am-241 has a diamcter of 8.5 mm, calculate the count rate caused by the 5.48 MeV alpha particle recorded by a detector 10 mm away from the source, parameters and their locations are shown in the figure below. Assume the detector has an intrinsic efficieney of 90 %, and the setup is located in vacuum. R=4.25 mm a=0.5 mm Source Detector d=10 mm
8. The isotropic circular dise source of Am-241 has a diamcter of 8.5 mm, calculate the count rate caused by the 5.48 MeV alpha particle recorded by a detector 10 mm away from the source, parameters and their locations are shown in the figure below. Assume the detector has an intrinsic efficieney of 90 %, and the setup is located in vacuum. R=4.25 mm a=0.5 mm Source Detector d=10 mm
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Transcribed Image Text:8. The isotropic circular disc source of Am-241 has a diameter of 8.5 mm, caleculate the
count rate caused by the 5.48 MeV alpha particle recorded by a detector 10 mm away
from the source, parameters and their locations are shown in the figure below. Asmume
the detector has an intrinsic efficiency of 90 %, and the setup is located in vacuum.
R=4.25 mm
a=0.5 mm
Source
Detector
d=10 mm
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