A filter for reducing the angular dependence of LiF; Ti, Mg for beta radiation

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Radiation Protection Management; (United States)

OSTI ID:5205189

Akabani, G; Poston, Sr, J W ^[1]

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1. Texas A and M Univ., College Station, TX (United States)

This paper reports on an improvement in the angular dependence of LiF:Ti,Mg (TAD-100) for beta radiation which was achieved by using a special filter design which produced a constant dosimeter response over a range of +70{degrees} and {minus}70{degrees}. The filter material used was acetate. The filter design was tested with three different beta sources, Sr/Y-90, Tl-204 and Pm-147 with average energies of 0.8, 0.24 and 0.06 MeV, respectively. The average response at 180 degrees of the new filtered dosimeter differed by less than 5% when compared to the response at zero degrees. An average decrease in sensitivity of 53% for Sr-90, 70% for Tl-204 and 67% for Pm-147 was obtained due to filter use. All doses were calculated for a depth dose in tissue of 0.07 mm equivalent to 7 mg/cm{sup 2} as is recommended in ICRP Publication 26. A comparison of the energy dependence for a bare TAD-100 at 0.0 mm and 0.07 mm depth in tissue was obtained.

• OSTI ID: 5205189
• Journal Information: Radiation Protection Management; (United States), Vol. 7:3; ISSN 0740-0640
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BETA SOURCES
RADIATION MONITORING
THERMOLUMINESCENT DOSEMETERS
FILTERS
DESIGN
ENERGY DEPENDENCE
PERFORMANCE
LITHIUM FLUORIDES
MAGNESIUM
PROMETHIUM 147
THALLIUM 204
TITANIUM
YTTRIUM 90
ALKALI METAL COMPOUNDS
ALKALINE EARTH METALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DOSEMETERS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LITHIUM COMPOUNDS
LITHIUM HALIDES
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
METALS
MONITORING
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PARTICLE SOURCES
PROMETHIUM ISOTOPES
RADIATION SOURCES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
THALLIUM ISOTOPES
TRANSITION ELEMENTS
YEARS LIVING RADIOISOTOPES
YTTRIUM ISOTOPES
440102* - Radiation Instrumentation- Radiation Dosemeters