UV-induced second readout of LiF thermoluminescent dosimeters in the therapeutic dose range

Journal Article · · Med. Phys.; (United States)

DOI:https://doi.org/10.1118/1.595316· OSTI ID:5592463

Zwicker, R D; Wu, A; Sternick, E S

A previously developed technique for reading out LiF thermoluminescent dosimeters (TLD) a second and subsequent time by means of ultraviolet (UV)-induced repopulation of dosimetry traps was studied to determine the feasibility of maintaining a second readout capability in a radiotherapy clinical setting. It was found that with grouping of the TLDs according to second readout sensitivity, the UV-induced readout attained a precision comparable to that of the initial readout. However, the UV-induced TL response retained a strong previous dose memory following a standard high-temperature anneal, and routine calibration before each reuse is recommended.

• Research Organization: Department of Therapeutic Radiology, Tufts-New England Medical Center, Boston, Massachusetts
• OSTI ID: 5592463
• Journal Information: Med. Phys.; (United States), Journal Name: Med. Phys.; (United States) Vol. 10:4; ISSN MPHYA
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALIBRATION
DATA ANALYSIS
DOSEMETERS
LUMINESCENT DOSEMETERS
MEASURING INSTRUMENTS
MEDICINE
NUCLEAR MEDICINE
RADIOLOGY
RADIOTHERAPY
READOUT SYSTEMS
THERAPY
THERMOLUMINESCENT DOSEMETERS