Thermoluminescence dosimeter taking account of tissue depth of dose
Three dosimeter disks of a thickness increasing towards the base piece which is to lie against the skin are used, with a covering of BETA ray window for thermoluminescence dosimetry. In order to provide dosimetry referred to a 70 um depth of living tissue, corresponding to a weight of material per unit area of 7 mg/cm/sup 2/, it is found that the thermoluminescent dosimeter (TLD) disk, which is next to the BETA window, should have a weight per unit area in the range from 15 to 30 mg/cm/sup 2/. A three-disk dosimeter should have TLD disks of increasing weight per unit area in the ratio 1:3:7 or, at any rate, the weight of the middle disk should be in the range from 30 to 90 mg/cm/sup 2/, and the third disk should have a weight of at least 90 mg/cm/sup 2/. TLD's are conventionally made of LiF crystals embedded in PTFE.
- Assignee:
- Kernforschungsanlage Julich GmbH (Germany, Federal Republic of)
- Patent Number(s):
- US 4506157
- OSTI ID:
- 5308676
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550600 -- Medicine
62 RADIOLOGY AND NUCLEAR MEDICINE
ALKALI METAL COMPOUNDS
ANIMAL TISSUES
BODY
DOSEMETERS
DOSIMETRY
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
ORGANS
SKIN
THERMOLUMINESCENT DOSIMETRY
TISSUES