Estimation of Absorbed Dose During Process Interruption in Radiation Processing
Конференцијски прилог (Објављена верзија)
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The quality control system enables the standardization of product quality. Dosimetry has an important role in the quality control of radiation processing. The area of radiation processing which is governed most strictly by regulations is radiation sterilization. This process is used as the example to describe the new method for establishing the effect of process interruption on absorbed dose in the Co-60 irradiation plant at the Vinca Institute of Nuclear Sciences. Establishing the effect of process interruption is one of requirements in international regulations, but there are no recommendations for its implementation. A new method has been worked out by graphical extrapolation. The advantage of this method is the ability to carry it out during the sterilization process. The ethanol-chlorobenzene (ECB) dosimeter is used to select the suitable place where absorbed dose is expected to be the most influenced by source transit, i.e. the most close to the source. In the same time, it shoul...d be convenient and reproducible for placing dosimeters. Alanine dosimeters were irradiated on this place in time intervals: 2 min., 4 min., 6 min., 8 min., 10 min. Measurements of time starts when the button to lift source is pressed and stops by pressing the button for process interruption (to sink source down). The absorbed doses were measured by ESR spectrometer. The function of absorbed dose versus irradiation time is linear as expected. The extrapolation back to zero time gives the maximal absorbed dose that can be delivered to product during source transit. In our experiment this absorbed dose obtained by this method is 154 Gy.
Кључне речи:
radiation processing / cobalt-6o / ethanol-chlorobenzene dosimetry / alanine dosimetryИзвор:
RAD Conference Proceedings, 2015, 181-184Финансирање / пројекти:
- Материјали редуковане димензионалности за ефикасну апсорпцију светлости и конверзију енергије (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
- APV Provincial Secretariat for Science of the Republic of Serbia [114-451-3583]
Напомена:
- 3rd International Conference on Radiation and Applications in Various Fields of Research (RAD), Jun 08-12, 2015, Budva, Montenegro
Колекције
Институција/група
VinčaTY - CONF AU - Šećerov, Bojana Lj. AU - Dramićanin, Miroslav PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7122 AB - The quality control system enables the standardization of product quality. Dosimetry has an important role in the quality control of radiation processing. The area of radiation processing which is governed most strictly by regulations is radiation sterilization. This process is used as the example to describe the new method for establishing the effect of process interruption on absorbed dose in the Co-60 irradiation plant at the Vinca Institute of Nuclear Sciences. Establishing the effect of process interruption is one of requirements in international regulations, but there are no recommendations for its implementation. A new method has been worked out by graphical extrapolation. The advantage of this method is the ability to carry it out during the sterilization process. The ethanol-chlorobenzene (ECB) dosimeter is used to select the suitable place where absorbed dose is expected to be the most influenced by source transit, i.e. the most close to the source. In the same time, it should be convenient and reproducible for placing dosimeters. Alanine dosimeters were irradiated on this place in time intervals: 2 min., 4 min., 6 min., 8 min., 10 min. Measurements of time starts when the button to lift source is pressed and stops by pressing the button for process interruption (to sink source down). The absorbed doses were measured by ESR spectrometer. The function of absorbed dose versus irradiation time is linear as expected. The extrapolation back to zero time gives the maximal absorbed dose that can be delivered to product during source transit. In our experiment this absorbed dose obtained by this method is 154 Gy. C3 - RAD Conference Proceedings T1 - Estimation of Absorbed Dose During Process Interruption in Radiation Processing SP - 181 EP - 184 UR - https://hdl.handle.net/21.15107/rcub_vinar_7122 ER -
@conference{ author = "Šećerov, Bojana Lj. and Dramićanin, Miroslav", year = "2015", abstract = "The quality control system enables the standardization of product quality. Dosimetry has an important role in the quality control of radiation processing. The area of radiation processing which is governed most strictly by regulations is radiation sterilization. This process is used as the example to describe the new method for establishing the effect of process interruption on absorbed dose in the Co-60 irradiation plant at the Vinca Institute of Nuclear Sciences. Establishing the effect of process interruption is one of requirements in international regulations, but there are no recommendations for its implementation. A new method has been worked out by graphical extrapolation. The advantage of this method is the ability to carry it out during the sterilization process. The ethanol-chlorobenzene (ECB) dosimeter is used to select the suitable place where absorbed dose is expected to be the most influenced by source transit, i.e. the most close to the source. In the same time, it should be convenient and reproducible for placing dosimeters. Alanine dosimeters were irradiated on this place in time intervals: 2 min., 4 min., 6 min., 8 min., 10 min. Measurements of time starts when the button to lift source is pressed and stops by pressing the button for process interruption (to sink source down). The absorbed doses were measured by ESR spectrometer. The function of absorbed dose versus irradiation time is linear as expected. The extrapolation back to zero time gives the maximal absorbed dose that can be delivered to product during source transit. In our experiment this absorbed dose obtained by this method is 154 Gy.", journal = "RAD Conference Proceedings", title = "Estimation of Absorbed Dose During Process Interruption in Radiation Processing", pages = "181-184", url = "https://hdl.handle.net/21.15107/rcub_vinar_7122" }
Šećerov, B. Lj.,& Dramićanin, M.. (2015). Estimation of Absorbed Dose During Process Interruption in Radiation Processing. in RAD Conference Proceedings, 181-184. https://hdl.handle.net/21.15107/rcub_vinar_7122
Šećerov BL, Dramićanin M. Estimation of Absorbed Dose During Process Interruption in Radiation Processing. in RAD Conference Proceedings. 2015;:181-184. https://hdl.handle.net/21.15107/rcub_vinar_7122 .
Šećerov, Bojana Lj., Dramićanin, Miroslav, "Estimation of Absorbed Dose During Process Interruption in Radiation Processing" in RAD Conference Proceedings (2015):181-184, https://hdl.handle.net/21.15107/rcub_vinar_7122 .