Improved “nonisolated sensor” solid polystyrene calorimeter Journal Article
| Authors: | Zeitz, L.; Ulin, K.; Caley, R. |
| Article Title: | Improved “nonisolated sensor” solid polystyrene calorimeter |
| Abstract: | A “nonisolated sensor” solid polystyrene calorimeter is described which permits absorbed dose measurements with precision of less than 0.3% (standard error of the mean). The accuracy for obtaining absolute absorbed dose was estimated by comparisons with cavity ionization measurements. The calculation of absorbed dose with ionization chambers was carried out based upon the TG 21 AAPM dosimetry protocol. Measurements in a 60Co γ ray field with three different polystyrene parallel plate ion chambers in a polystyrene phantom did not differ by more than 1.5% from that obtained with the polystyrene calorimeter. Measurements taken over a period of 247 days are compared with the expected values on the basis of the decay of 60Co. The calorimeter system, with its capability of acquiring, printing, storing, plotting, and analyzing the data by computer, is described. © 1984, American Institute of Physics for the National Institute of Standards and Technology. All rights reserved. |
| Keywords: | nonhuman; methodology; accuracy; dosimetry; radioisotope; ionization chamber; polystyrene; software; cobalt 60; theoretical study; calorimetry; health physics; calorimeters; gamma radiation; radiation doses; polystyrenes; priority journal; support, u.s. gov't, p.h.s.; gamma dosimetry; 87.55.6; calorimetric dosemeters |
| Journal Title: | Medical Physics |
| Volume: | 13 |
| Issue: | 3 |
| ISSN: | 0094-2405 |
| Publisher: | American Association of Physicists in Medicine |
| Date Published: | 1986-05-01 |
| Start Page: | 399 |
| End Page: | 402 |
| Language: | English |
| DOI: | 10.1118/1.595883 |
| PUBMED: | 3755214 |
| PROVIDER: | scopus |
| DOI/URL: | |
| Notes: | Letter -- Export Date: 18 August 2021 -- Source: Scopus |
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