Unitary scintillation detector and system
- Oak Ridge, TN
- Knoxville, TN
The invention is a unitary alpha, beta, and gamma scintillation detector and system for sensing the presence of alpha, beta, and gamma radiations selectively or simultaneously. The scintillators are mounted in a light-tight housing provided with an entrance window for admitting alpha, beta, and gamma radiation and excluding ambient light from the housing. Light pulses from each scintillator have different decay constants that are converted by a photosensitive device into corresponding differently shaped electrical pulses. A pulse discrimination system identifies the electrical pulses by their respective pulse shapes which are determined by decay time. The identified electrical pulses are counted in separate channel analyzers to indicate the respective levels of sensed alpha, beta, and gamma radiations.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Number(s):
- US 5317158
- OSTI ID:
- 869334
- Country of Publication:
- United States
- Language:
- English
Multi-energy neutron detector for counting thermal neutrons, high-energy neutrons, and gamma photons separately
|
journal | June 1990 |
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scintillation
detector
alpha
beta
gamma
sensing
presence
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selectively
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scintillators
mounted
light-tight
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provided
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window
admitting
radiation
excluding
ambient
light
pulses
scintillator
decay
constants
converted
photosensitive
device
corresponding
shaped
electrical
pulse
discrimination
identifies
respective
shapes
determined
time
identified
counted
separate
channel
analyzers
indicate
levels
sensed
shaped electrical
pulse shape
scintillation detector
light pulses
gamma radiation
electrical pulses
light pulse
electrical pulse
ambient light
decay constant
sensitive device
separate channel
channel analyzer
gamma radiations
decay time
housing provided
shaped electric
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