S. V. Bara, M. R. Dhumale, S. Chinnaesakki, S. K. Jha, M. S. Kulkarni
{"title":"利用 HPGe 伽玛射线光谱仪分析钛铁矿各加工阶段的放射性核素分馏情况","authors":"S. V. Bara, M. R. Dhumale, S. Chinnaesakki, S. K. Jha, M. S. Kulkarni","doi":"10.1007/s12647-023-00728-9","DOIUrl":null,"url":null,"abstract":"<div><p>This paper discusses the natural radioactivity levels in ilmenite ore and its final product. Two economically viable ores of titanium are ilmenite (FeO.TiO<sub>2</sub>) and rutile (TiO<sub>2</sub>). High-purity germanium (HPGe) detector was used to analyse samples of raw ore, its purified fraction and the final product (synthetic rutile). Radioactivity levels due to <sup>238</sup>U and <sup>232</sup>Th and its daughter products were estimated. The concentration of <sup>238</sup>U and <sup>232</sup>Th in raw ore, purified ore and synthetic rutile was found to be 204 ± 4 and 1208 ± 5, 89.0 ± 4 and 597.0 ± 4, 119 ± 2.5 and 398.0 ± 3 Bq/kg, respectively. The dose rates due to gamma photons estimated in raw ore and synthetic rutile were 572 nSv/h and 277 nSv/h, respectively. The activity index estimated was 5.3 for raw ore and 2.3 for final product (synthetic rutile). The final product contained only 25% of the radioactivity compared to the ore showing significant reduction in radioactivity due to the processing of the ore.</p></div>","PeriodicalId":689,"journal":{"name":"MAPAN","volume":null,"pages":null},"PeriodicalIF":1.0000,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of Radionuclide Partitioning at Various Stages of Processing of Ilmenite Ore Using HPGe Gamma-Ray Spectrometry\",\"authors\":\"S. V. Bara, M. R. Dhumale, S. Chinnaesakki, S. K. Jha, M. S. Kulkarni\",\"doi\":\"10.1007/s12647-023-00728-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This paper discusses the natural radioactivity levels in ilmenite ore and its final product. Two economically viable ores of titanium are ilmenite (FeO.TiO<sub>2</sub>) and rutile (TiO<sub>2</sub>). High-purity germanium (HPGe) detector was used to analyse samples of raw ore, its purified fraction and the final product (synthetic rutile). Radioactivity levels due to <sup>238</sup>U and <sup>232</sup>Th and its daughter products were estimated. The concentration of <sup>238</sup>U and <sup>232</sup>Th in raw ore, purified ore and synthetic rutile was found to be 204 ± 4 and 1208 ± 5, 89.0 ± 4 and 597.0 ± 4, 119 ± 2.5 and 398.0 ± 3 Bq/kg, respectively. The dose rates due to gamma photons estimated in raw ore and synthetic rutile were 572 nSv/h and 277 nSv/h, respectively. The activity index estimated was 5.3 for raw ore and 2.3 for final product (synthetic rutile). The final product contained only 25% of the radioactivity compared to the ore showing significant reduction in radioactivity due to the processing of the ore.</p></div>\",\"PeriodicalId\":689,\"journal\":{\"name\":\"MAPAN\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-01-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"MAPAN\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12647-023-00728-9\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"INSTRUMENTS & INSTRUMENTATION\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"MAPAN","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s12647-023-00728-9","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
Analysis of Radionuclide Partitioning at Various Stages of Processing of Ilmenite Ore Using HPGe Gamma-Ray Spectrometry
This paper discusses the natural radioactivity levels in ilmenite ore and its final product. Two economically viable ores of titanium are ilmenite (FeO.TiO2) and rutile (TiO2). High-purity germanium (HPGe) detector was used to analyse samples of raw ore, its purified fraction and the final product (synthetic rutile). Radioactivity levels due to 238U and 232Th and its daughter products were estimated. The concentration of 238U and 232Th in raw ore, purified ore and synthetic rutile was found to be 204 ± 4 and 1208 ± 5, 89.0 ± 4 and 597.0 ± 4, 119 ± 2.5 and 398.0 ± 3 Bq/kg, respectively. The dose rates due to gamma photons estimated in raw ore and synthetic rutile were 572 nSv/h and 277 nSv/h, respectively. The activity index estimated was 5.3 for raw ore and 2.3 for final product (synthetic rutile). The final product contained only 25% of the radioactivity compared to the ore showing significant reduction in radioactivity due to the processing of the ore.
期刊介绍：
MAPAN-Journal Metrology Society of India is a quarterly publication. It is exclusively devoted to Metrology (Scientific, Industrial or Legal). It has been fulfilling an important need of Metrologists and particularly of quality practitioners by publishing exclusive articles on scientific, industrial and legal metrology.
The journal publishes research communication or technical articles of current interest in measurement science; original work, tutorial or survey papers in any metrology related area; reviews and analytical studies in metrology; case studies on reliability, uncertainty in measurements; and reports and results of intercomparison and proficiency testing.
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