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Gamma radiation field intensity meter

Patent ·
OSTI ID:870120
 [1]
  1. Knoxville, TN
+ Show Author Affiliations

A gamma radiation intensity meter measures dose rate of a radiation field. The gamma radiation intensity meter includes a tritium battery emitting beta rays generating a current which is essentially constant. Dose rate is correlated to an amount of movement of an electroscope element charged by the tritium battery. Ionizing radiation decreases the voltage at the element and causes movement. A bleed resistor is coupled between the electroscope support element or electrode and the ionization chamber wall electrode.

Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5459366
OSTI ID:
870120
Country of Publication:
United States
Language:
English

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Related Subjects

/310/429/
amount
battery
battery emitting
beta
beta ray
beta rays
bleed
bleed resistor
causes
chamber
chamber wall
charged
constant
correlated
coupled
current
decreases
dose
dose rate
electrode
electroscope
element
element charged
emitting
emitting beta
essentially
essentially constant
field
field intensity
gamma
gamma radiation
generating
intensity
intensity meter
ionization
ionization chamber
ionizing
ionizing radiation
measures
measures dose
meter
meter measures
movement
radiation
radiation field
radiation intensity
rate
rays
rays generating
resistor
support
support element
tritium
tritium battery
voltage
wall