Document Type : Research
Authors
1 Ph.D., Radiation Application Research School, NSTRI, AEOI, Tehran, Iran
2 Ph.D., Physics and Accelerators, Research School, NSTRI, AEOI, Tehran, Iran
3 Assistant Professor, Photonics and Quantum Technologies Research School, NSTRI, AEOI, Tehran, Iran
Abstract
The operation principle of calorimeters used for dosimetry of ionizing radiations is based on measuring the induced temperature difference in the adsorbent due to thermal energy deposition of the ionization radiation. In recent years, one of these methods has been the holographic optical calorimetry by laser beams. One of the problems that affect the response accuracy of the calorimeters is the heat transfer phenomenon in the adsorbent material. This phenomenon affects the measurement accuracy of the absorbed dose. In this work, using numerical coding in the FORTRAN environment, the dose profile change due to heat transfer effects in the PMMA tissue-equivalent material inside a holographic interferometry calorimeter has been investigated and the results have been compared with the finite element method results.
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