Nitin Kumari, K. Vishwa Prasad, A. Y. Balbudhe, N. Sai Krishna, S. K. Jha, M. S. Kulkarni
{"title":"Determination and Inter-Comparison of 238U and 232Th in Zircon Sand Using Gamma Spectrometry","authors":"Nitin Kumari, K. Vishwa Prasad, A. Y. Balbudhe, N. Sai Krishna, S. K. Jha, M. S. Kulkarni","doi":"10.1007/s12647-023-00723-0","DOIUrl":null,"url":null,"abstract":"<div><p>An inter-comparison exercise is a quality control tool to standardize a laboratory and was performed between HPU lab at Nuclear Fuel Complex and RPS (NF) lab at Bhabha Atomic Research Centre to determine and compare the concentration of primordial radionuclides in a zircon sample received from Health Physics Unit (HPU), Indian Rare Earth Limited Manavalakurichi weighing 470 g. RPS (NF) lab is annually participating in international inter-comparison exercise conducted by IAEA and is a nodal laboratory for the in-house inter-laboratory comparison exercise. Thus, its values are considered true values. The measured concentrations for <sup>238</sup>U and <sup>232</sup>Th in zircon sample do not vary considerably as 0.37% variation is observed in true value and measured value of <sup>238</sup>U and 0.32% variation is observed in true value and measured value of <sup>232</sup>Th. U score is also calculated from the results obtained where it is found to be 0.124 for <sup>238</sup>U and 0.195 for <sup>232</sup>Th. Trueness and precision tests are also performed, and the laboratory results are found to be “acceptable”. It represents that the laboratory performance is evaluated as satisfactory and does not significantly differ from the expected values as per the statistical tools. This ensures that the analytical measurement results of the laboratory are reliable and traceable to reference standard laboratory.</p></div>","PeriodicalId":689,"journal":{"name":"MAPAN","volume":"39 1","pages":"25 - 30"},"PeriodicalIF":1.0000,"publicationDate":"2024-01-10","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/s12647-023-00723-0","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}
引用次数: 0
Abstract
An inter-comparison exercise is a quality control tool to standardize a laboratory and was performed between HPU lab at Nuclear Fuel Complex and RPS (NF) lab at Bhabha Atomic Research Centre to determine and compare the concentration of primordial radionuclides in a zircon sample received from Health Physics Unit (HPU), Indian Rare Earth Limited Manavalakurichi weighing 470 g. RPS (NF) lab is annually participating in international inter-comparison exercise conducted by IAEA and is a nodal laboratory for the in-house inter-laboratory comparison exercise. Thus, its values are considered true values. The measured concentrations for 238U and 232Th in zircon sample do not vary considerably as 0.37% variation is observed in true value and measured value of 238U and 0.32% variation is observed in true value and measured value of 232Th. U score is also calculated from the results obtained where it is found to be 0.124 for 238U and 0.195 for 232Th. Trueness and precision tests are also performed, and the laboratory results are found to be “acceptable”. It represents that the laboratory performance is evaluated as satisfactory and does not significantly differ from the expected values as per the statistical tools. This ensures that the analytical measurement results of the laboratory are reliable and traceable to reference standard laboratory.
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.