Assessment of Gamma Dose Rate for Hypothetical Radioactive Waste Container

التفاصيل البيبلوغرافية
العنوان: Assessment of Gamma Dose Rate for Hypothetical Radioactive Waste Container
المؤلفون: Falah Shhu, Mohammed Ghk, Ahmad Jh, Battawi Sm, Sabeeha Jb, Alaa Hm
المصدر: International Journal of Applied Science - Research and Review.
بيانات النشر: Scitechnol Biosoft Pvt. Ltd., 2017.
سنة النشر: 2017
مصطلحات موضوعية: Cement, Waste management, Gamma dose, Forensic engineering, Radioactive waste, Environmental science, Drum, Contamination, Radiation, Dose rate, Nuclear decommissioning
الوصف: Metallic solid radioactive waste class low-intermediate short lived level waste (LILSL RW) is the main type of radioactive waste generated from decommissioning operations. Transport, storage and disposal regulations require for gamma emitting radioactive waste (mainly by 137Cs isotope), that the dose rate in the proximity of the container should stand below a certain threshold. Also, the conditioning technique (using cementation technique) based on certain matrix with specific ratios should be able to attenuate the gamma radiation activity to the minimum level or to acceptable dosage rate at distance of 1 m from the container. In this paper, in absence of suitable labs for waste package assessment, hypothetical method present to assess dose rate in safe way, assumption based on metallic waste pieces contaminated with (137Cs) were conditioned with cement matrix and contained in carbon steel drum volume 220 L, 60 cm diameter then dose rate measurement applied in vicinity of the container. Instead of real contaminated metallic waste (137Cs, Do=20 mR/h), gamma radioactive point source was positioned in different places in front of cross section of the cemented free metallic waste and gamma dose rates were measured on the outer side of the drum sample using NaI detector dose meter device. Readings showed good attenuation of gamma radiation activity (low dose rates), efficiency of the cement matrix to decrease the dose rate of (137Cs, 0.662 Mev) gamma radiation lower to acceptable values and with waste acceptance criteria and regulation.
تدمد: 2394-9988
DOI: 10.21767/2349-7238.100055
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::4fecbeb19c9a4620c1f5a8c46779af1e
https://doi.org/10.21767/2349-7238.100055
Rights: OPEN
رقم الانضمام: edsair.doi...........4fecbeb19c9a4620c1f5a8c46779af1e
قاعدة البيانات: OpenAIRE
الوصف
تدمد:23949988
DOI:10.21767/2349-7238.100055