Published 1992 | Version v1
Book Metadata-only

Relative efficiencies of TL peaks in CaF2:Tm, CaF2:Dy and CaSO4

Creators

  • 1. Bhabha Atomic Research Centre, Bombay (India). Div. of Radiological Protection
  • 2. Bhabha Atomic Research Centre, Bombay (India). Health Physics Div.

Description

In CaF2:Tm (TLD-300) the ratio of 240 degrees C to 150 degrees C TL Peaks has been reported to be dependent on LET of radiation. Thus CaF2:Tm has been recommended for high LET radiation dosimetry as well as for mixed neutron-gamma dosimetry due to higher ratio of 240 degrees C / 150 degrees C TL peaks for high LET radiations as compared to that for low LET (Co-60 gamma) radiation. This is similar to that observed earlier for 260 degrees C and 200 degrees C TL peaks of LiF:Mg,Ti. 240 degrees C and 150 degrees C TL peaks for thick chips. In this paper the relative TL efficiencies (n) for alpha (Am-241) with respect to beta (Sr-90) radiation using fine grains in the range of 1-8 μm were determined for CaF2:Tm (TLD-300), CaF2:Dy (TLD-200) and CaSO4:Tm phosphors; CaSO4:Dy was included for the purpose of comparison

Additional details

Additional titles

Subtitle (English)
Tm phosphors for alpha and beta radiation

Publishing Information

Publisher
Nova Science Publishers, Inc.
Imprint Place
Commack, NY (United States)
ISBN
1-56072-013-1
Imprint Title
Proceedings of the third CECRI research conference on luminescence
Imprint Pagination
474 p.
Journal Page Range
p. 319-323.

Conference

Title
3. Central Electrochemical Research Institute (CECRI) research conference on luminescence.
Dates
12-14 Jan 1990.
Place
Karaikudi (India).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
24016084
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALPHA DOSIMETRY; BETA DOSIMETRY; CALCIUM FLUORIDES; CALCIUM SULFATES; DYSPROSIUM; GAMMA DOSIMETRY; LET; MATERIALS TESTING; NEUTRON DOSIMETRY; PHOSPHORS; SENSITIVITY; THERMOLUMINESCENCE; THERMOLUMINESCENT DOSEMETERS; THULIUM
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; CALCIUM HALIDES; DOSEMETERS; DOSIMETRY; ELEMENTS; EMISSION; ENERGY TRANSFER; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; LUMINESCENCE; LUMINESCENT DOSEMETERS; MEASURING INSTRUMENTS; METALS; OXYGEN COMPOUNDS; PHOTON EMISSION; RARE EARTHS; SULFATES; SULFUR COMPOUNDS; TESTING

Optional Information

Secondary number(s)
CONF-9001173--.