Published March 2007 | Version v1
Journal article Metadata-only

Dosimetric characterization of wollastonite-teflon composites

Creators

  • 1. Departamento de Fisica, Universidade Federal de Sergipe, Sao Cristovao/SE (Brazil)
  • 2. Centro Federal de Educacao Tecnologica de Sergipe, Aracaju/SE (Brazil)
  • 3. Instituto de Pesquisas Energeticas e Nucleares, Comissao Nacional de Energia Nuclear/SP (Brazil)

Description

In this work, the thermoluminescent properties of pellets containing powdered Wollastonite embedded in Teflon were studied. The preliminary results using gamma rays from a 60Co source showed linearity at the calibration curve between 0.5 Gy and 10 Gy. The main TL peaks are located at 125, 200 and 245 C. The repeatibility of TL response presented a maximum coefficient of variation of 6.3%. The material can be used in successive irradiation-reading-annealing cycles without an appreciable change in its sensitivity. The calibration curve for a gamma source (60Co) up to 20 kGy and the minimum detection limits were obtained. The results show that these Wollastonite-Teflon pellets present possibilities for use as TL dosimeters. (copyright 2007 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200673869

Additional details

Identifiers

DOI
10.1002/pssc.200673869;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
4
Journal Issue
3
Journal Page Range
p. 1175-1178
ISSN
1610-1634

Conference

Title
10. Europhysical conference on defects in insulating materials
Acronym
EURODIM 2006
Dates
10-14 Jul 2006
Place
Milan (Italy)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
38036726
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANNEALING; CALCIUM SILICATES; CALIBRATION; COMPOSITE MATERIALS; GAMMA DOSIMETRY; GLOW CURVE; MEV RANGE 01-10; PELLETS; POWDERS; RESPONSE FUNCTIONS; SENSITIVITY; SILICATE MINERALS; TEFLON; THERMOLUMINESCENCE; THERMOLUMINESCENT DOSIMETRY
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; DOSIMETRY; EMISSION; ENERGY RANGE; FLUORINATED ALIPHATIC HYDROCARBONS; FUNCTIONS; HALOGENATED ALIPHATIC HYDROCARBONS; HEAT TREATMENTS; LUMINESCENCE; MATERIALS; MEV RANGE; MINERALS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC POLYMERS; OXYGEN COMPOUNDS; PETROCHEMICALS; PETROLEUM PRODUCTS; PHOTON EMISSION; PLASTICS; POLYETHYLENES; POLYMERS; POLYOLEFINS; POLYTETRAFLUOROETHYLENE; SILICATES; SILICON COMPOUNDS; SYNTHETIC MATERIALS

Optional Information

Notes
With 3 figs., 10 refs.. SICI: 1610-1634(200703)4:3<1175::AID-PSSC200673869>3.0.TX;2-G