Published 1990 | Version v1
Journal article Metadata-only

UV induced trapping in powder and in sintered CaSO4:Tm and CaSO4:Dy

Creators

  • 1. Advanced Technology and Research Corp., Laurel, MD (USA)
  • 2. Naval Surface Warfare Center, Silver Spring, MD (USA)
  • 3. National Inst. of Science and Technology, Gaithersburg, MD (USA)

Description

CaSO4:Tm and CaSO4:Dy are both known to possess a dosimetric peak at approximately 2200C. A TL peak at a temperature higher than this dosimetric peak is observed on UV irradiation in powder CaSO4:Tm and CaSO4:Dy and on UV and γ irradiation in sintered CaSO4:Dy. This peak is at ∼ 3300C and ∼ 2800C in powder CaSO4:Dy and CaSO4:Tm respectively and at ∼ 3300C in the sintered pellets of both the materials. It is observed that UV light causes charge trapping as well as phototransfer involving this peak. (author)

Additional details

Publishing Information

Journal Title
Radiation Protection Dosimetry
Journal Volume
33
Journal Issue
1-4
Series
Radiat. Prot. Dosim.
Journal Page Range
35-38
ISSN
0144-8420
CODEN
RPDOD

Conference

Title
9. International conference on solid state dosimetry.
Dates
6-10 Nov 1989.
Place
Vienna (Austria).

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
22037082
Subject category
S36: MATERIALS SCIENCE; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CALCIUM SULFATES; DOPED MATERIALS; DYSPROSIUM; GAMMA RADIATION; GLOW CURVE; POWDERS; SINTERED MATERIALS; THERMOLUMINESCENT DOSEMETERS; THULIUM; TRAPPING; ULTRAVIOLET RADIATION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; DOSEMETERS; ELECTROMAGNETIC RADIATION; ELEMENTS; IONIZING RADIATIONS; LUMINESCENT DOSEMETERS; MATERIALS; MEASURING INSTRUMENTS; METALS; OXYGEN COMPOUNDS; RADIATIONS; RARE EARTHS; SULFATES; SULFUR COMPOUNDS

Optional Information

Notes
Vol. 1 of 2 vols. Vol. 2 published in Radiat. Prot. Dosim. (1990) v. 34(1-4).
Secondary number(s)
CONF--891104.