The possibility of application of pyrometric method in industrial dosimetry of electron beam radiation

• Дата: 2022
• Автори: Pomatsalyuk, R.I., Romanovsky, S.K., Shevchenko, V.A., Tenishev, A.Eh., Titov, D.V., Uvarov, V.L., Zakharchenko, A.A., Zhyglo, V.Ph.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2022
• Назва видання: Вопросы атомной науки и техники
• Теми: Detectors and nuclear radiation detection
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/195400
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: The possibility of application of pyrometric method in industrial dosimetry of electron beam radiation / R.I. Pomatsalyuk, S.K. Romanovsky, V.A. Shevchenko, A.Eh. Tenishev, D.V. Titov, V.L. Uvarov, A.A. Zakharchenko, V.Ph. Zhyglo // Problems of Atomic Science and Technology. — 2022. — № 3. — С.94-99. — Бібліогр.: 11 назв. — англ.

Validation of process of medical product sterilization includes absorbed dose mapping in a phantom made of material representative of the object to be processed. Commonly, such measurements are carried out using the disposable chemical dosimeters placed in the phantom at the nodes of the 3D grid. Such a procedure is very laborious and costly in terms of the consumption of dosimeters. In the work, we investigated the possibility of using pyrometric method for prompt mapping of the absorbed dose. The studies were carried out using a rectangular phantom in the form of a set of expanded polystyrene plates, which is exposed to a scanned electron beam. The temperature and absorbed dose distributions in the phantom were measured. A linear dependence between them has been established. The calculation of the absorbed dose profile was also performed by MC simulations. Satisfactory agreement of the calculated dose distribution with the measured one is shown. The limitations of applicability of the proposed method are determined.