Abstract
The polystyrene-water calorimeter was investigated as a modification of the water calorimeter, where the polystyrene has a low specific heat and negligible known heat defect. This calorimeter was designed, constructed and calibrated for measurement of radiation absorbed dose. The system utilizes a thermistor to detect the radiation-induced temperature rise in the polystyrene absorber at certain point from the radiation source. A temperature stability of as low as 0.0018 degree C/min in a 42.0 degree C environment, and a gamma-radiation sensitivity of as high as 1.9720 ohm/Gy were obtained. Comparisons of the results obtained by using the polystyrene-water calorimeter with those obtained by applying other types of calorimeters i.e., water and graphite calorimeters were also done to aid in the possible realization of an accurate and efficient instrument for use under widely different irradiation conditions. 4 figs., 1 tab.
Soliman, F A;
[1]
Ashry, H A;
El-Behay, A Z;
Abdou, S
[2]
- Nuclear Materials Authority, Maadi, Cairo (Egypt)
- National Center, for Radiation Research and Technology, Atomic Energy Authority, Cairo (Egypt)
Citation Formats
Soliman, F A, Ashry, H A, El-Behay, A Z, and Abdou, S.
Application of polystyrene - water calorimeter in determination of absorbed dose. Vol. 4..
Egypt: N. p.,
1996.
Web.
Soliman, F A, Ashry, H A, El-Behay, A Z, & Abdou, S.
Application of polystyrene - water calorimeter in determination of absorbed dose. Vol. 4..
Egypt.
Soliman, F A, Ashry, H A, El-Behay, A Z, and Abdou, S.
1996.
"Application of polystyrene - water calorimeter in determination of absorbed dose. Vol. 4."
Egypt.
@misc{etde_456107,
title = {Application of polystyrene - water calorimeter in determination of absorbed dose. Vol. 4.}
author = {Soliman, F A, Ashry, H A, El-Behay, A Z, and Abdou, S}
abstractNote = {The polystyrene-water calorimeter was investigated as a modification of the water calorimeter, where the polystyrene has a low specific heat and negligible known heat defect. This calorimeter was designed, constructed and calibrated for measurement of radiation absorbed dose. The system utilizes a thermistor to detect the radiation-induced temperature rise in the polystyrene absorber at certain point from the radiation source. A temperature stability of as low as 0.0018 degree C/min in a 42.0 degree C environment, and a gamma-radiation sensitivity of as high as 1.9720 ohm/Gy were obtained. Comparisons of the results obtained by using the polystyrene-water calorimeter with those obtained by applying other types of calorimeters i.e., water and graphite calorimeters were also done to aid in the possible realization of an accurate and efficient instrument for use under widely different irradiation conditions. 4 figs., 1 tab.}
place = {Egypt}
year = {1996}
month = {Mar}
}
title = {Application of polystyrene - water calorimeter in determination of absorbed dose. Vol. 4.}
author = {Soliman, F A, Ashry, H A, El-Behay, A Z, and Abdou, S}
abstractNote = {The polystyrene-water calorimeter was investigated as a modification of the water calorimeter, where the polystyrene has a low specific heat and negligible known heat defect. This calorimeter was designed, constructed and calibrated for measurement of radiation absorbed dose. The system utilizes a thermistor to detect the radiation-induced temperature rise in the polystyrene absorber at certain point from the radiation source. A temperature stability of as low as 0.0018 degree C/min in a 42.0 degree C environment, and a gamma-radiation sensitivity of as high as 1.9720 ohm/Gy were obtained. Comparisons of the results obtained by using the polystyrene-water calorimeter with those obtained by applying other types of calorimeters i.e., water and graphite calorimeters were also done to aid in the possible realization of an accurate and efficient instrument for use under widely different irradiation conditions. 4 figs., 1 tab.}
place = {Egypt}
year = {1996}
month = {Mar}
}