Thermoluminescence dosimeter

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:865624

Zendle, Robert ^[1]

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1. Schenectady, NY

A thermoluminescence dosimeter having a very small rate of decline of sensitivity during subsequent uses after heating is disclosed. The dosimeter includes a detector crystal and a glass enclosure in which the detector crystal is located. The glass enclosure is air tight and is filled with a super dry inert fill gas. The inert fill gas is nonreactive with the detector crystal when the detector crystal is heated to thermoluminescence. The fill gas is selected from the group consisting of air, nitrogen, and argon, suitable admixed with 5 to 25 percent helium. The detector crystal consists essentially of calcium fluoride. The fill gas is preferably contained at a subatmospheric pressure in the glass enclosure.

• Research Organization: Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
• DOE Contract Number: AC12-76SN00052
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4546259
• OSTI ID: 865624
• Country of Publication: United States
• Language: English

Related Subjects

thermoluminescence
dosimeter
rate
decline
sensitivity
subsequent
heating
disclosed
detector
crystal
glass
enclosure
located
air
tight
filled
super
dry
inert
fill
gas
nonreactive
heated
selected
consisting
nitrogen
argon
suitable
admixed
25
percent
helium
consists
essentially
calcium
fluoride
preferably
contained
subatmospheric
pressure
preferably contain
fill gas
atmospheric pressure
consists essentially
subatmospheric pressure
calcium fluoride
detector crystal
thermoluminescence dosimeter
/250/