caa a22 4500 469109858 CHVBK 20180323133107.0 cr unu---uuuuu 170328e19921001xx s 000 0 eng 10.1007/BF02035400 doi (NATIONALLICENCE)springer-10.1007/BF02035400 Speciation and estimation of radioiodine in reactor coolant water [Elektronische Daten] [P. Ravi, K. Neelakandhan, M. Iyer] The species of radioiodine in the primary coolant water of the heavy water moderated, heavy water cooled 100 MW research reactor have been identified. It was observed that IO 3 − was the major species in the reactor coolant during reactor operation and I− was the major species during shutdown. Organic and elemental forms amount only to less than 2% of total radioiodine. A simple method was developed for the estimation of gross iodine activity in reactor coolant water. The method involves the separation of all inorganic forms of iodine into a photographic film consisting of a thin layer of silver halide. The iodine in the film was estimated by gross counting of the film in a Geiger-Müller counter. Gross iodine activity in the reactor coolant samples estimated by the present method were in agreement with that obtained by direct γ-spectrometry with a Ge detector. It is concluded that the method can be used for the routine estimation of radioiodine in reactor coolant water.133I/131I and135I/131I ratios in the film were estimated and found to be useful in identifying split rod conditions in the reactor. Akadémiai Kiadó, 1992 Ravi P. Radioation Safety Systems Division, Bhabha Atomic Research Centre, 400085, Bombay, (India) aut Neelakandhan K. Radioation Safety Systems Division, Bhabha Atomic Research Centre, 400085, Bombay, (India) aut Iyer M. Radioation Safety Systems Division, Bhabha Atomic Research Centre, 400085, Bombay, (India) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/2(1992-10-01), 399-405 0236-5731 162:2<399 1992 162 10967 https://doi.org/10.1007/BF02035400 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02035400 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ravi P. Radioation Safety Systems Division, Bhabha Atomic Research Centre, 400085, Bombay, (India) aut NATIONALLICENCE 700 1- Neelakandhan K. Radioation Safety Systems Division, Bhabha Atomic Research Centre, 400085, Bombay, (India) aut NATIONALLICENCE 700 1- Iyer M. Radioation Safety Systems Division, Bhabha Atomic Research Centre, 400085, Bombay, (India) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/2(1992-10-01), 399-405 0236-5731 162:2<399 1992 162 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer