Gamma radiation field intensity meter

Patent · Sun Jan 01 00:00:00 EST 1995

OSTI ID:870120

Thacker, Louis H ^[1]

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1. Knoxville, TN

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: 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 5459366
• OSTI ID: 870120
• Country of Publication: United States
• Language: English

Related Subjects

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