Gamma radiation dosimetry using a NaCl:Ba(T) thermoluminescent phosphor

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Health Phys.; (United States)

DOI:https://doi.org/10.1097/00004032-198607000-00011· OSTI ID:6985449

Mahajan, O H; Joshi, T R; Nambi, K S; Joshi, R V

A detailed examination is presented of the thermoluminescence (TL) characteristics of untreated and heat-treated pure and Ba-doped NaCl exposed to gamma radiation at room temperature. The NaCl:Ba (10(-2) molar fraction) phosphor quenched from 750 degrees C, designated as NaCl:Ba(T), is found to give a pronounced TL output with a well-defined glow peak around 220 degrees C (peak III) along with other peaks at lower temperatures. It is suggested that the TL centre associated with glow peak III is comprised of an impurity-vacancy dipole with a negative ion vacancy in its vicinity. The TL centres are presumed to be located in the dislocation region. The dosimetric properties of peak III after gamma irradiation have also been examined. It is observed that most of the basic requirements of an efficient TLD material are fulfilled by the phosphor.

• Research Organization: Univ. of Baroda (India)
• OSTI ID: 6985449
• Journal Information: Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 51:1; ISSN HLTPA
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
655003* -- Medical Physics-- Dosimetry
ALKALI METAL COMPOUNDS
ALKALINE EARTH METALS
BARIUM
CHLORIDES
CHLORINE COMPOUNDS
DOSIMETRY
ELECTROMAGNETIC RADIATION
ELEMENTS
GAMMA RADIATION
HALIDES
HALOGEN COMPOUNDS
IONIZING RADIATIONS
METALS
PHOSPHORS
QUANTITY RATIO
RADIATIONS
SODIUM CHLORIDES
SODIUM COMPOUNDS
THERMOLUMINESCENT DOSIMETRY