Evaluation of the effect of temperature variation on response of PRESAGE® dosimeter.
J Cancer Res Ther
; 13(1): 118-121, 2017.
Article
em En
| MEDLINE
| ID: mdl-28508844
ABSTRACT
INTRODUCTION:
Many factors, such as PRESAGE ® composition, dose rate, energy, and type of radiation, temperature, etc., may effect on PRESAGE ® dosimeter response. The aim of this study was investigating the effect of temperature variation on response of PRESAGE ® solid dosimeter. MATERIALS ANDMETHODS:
In this study, a PRESAGE ® solid detector was fabricated. Ninety-four percent weight polyurethane, 5% weight carbon tetrachloride, and 1% weight leucomalachite green were used. Radiological and physical characteristics of PRESAGEs ®, such as mass density, electron density, and effective number atomic were obtained and compared with water. Response of PRESAGE ® dosimeter in temperatures -4, 10, 25, 35, 45, 55, 65, 75, 85, and 90°C was evaluated. In addition, the absorption peak at various temperatures was investigated.RESULTS:
The results showed that the absorption peak at different temperatures was in the range of 630-635 nm. For temperatures below 75°C, the results indicated that temperature variation has no effect on the response of PRESAGE ® dosimeter whereas at the temperatures> 75°C, temperature variation has an effect on PRESAGE ® dosimeter response.CONCLUSION:
The finding showed that temperature changes have not impact on the absorption peak. In addition, the results related to the effect of temperature variation on the response of PRESAGE ® dosimeter showed that in the range of clinical applications (temperatures below 75°C), temperature variation has no effect on PRESAGE ® dosimeter response.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Radiometria
/
Radioterapia
/
Dosímetros de Radiação
/
Neoplasias
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article