Leena Joseph

Bhabha Atomic Research Center Hospital

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D.B. Kulkarni

Bhabha Atomic Research Centre

R. Anuradha

Bhabha Atomic Research Centre

Anuradha Ravindra

Bhabha Atomic Research Centre

M.S. Kulkarni

Homi Bhabha National Institute

V.V. Shaha

Bhabha Atomic Research Centre

Akira Yunoki

National Institute of Advanced Industrial Science and Technology

R. Nathuram

Bhabha Atomic Research Centre

Yasushi Sato

National Institute of Advanced Industrial Science and Technology

Akira Iwahara

Instituto de Radioproteção e Dosimetria

Maria Sahagia

Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering

Cooperative Institutions

Bhabha Atomic Research Centre

National Institute of Metrology

Korea Research Institute of Standards and Science

Australian Nuclear Science and Technology Organisation

National Institute of Standards and Technology

Commissariat à l'Énergie Atomique et aux Énergies Alternatives

Bhabha Atomic Research Center Hospital

Instituto de Radioproteção e Dosimetria

Material Measurement Laboratory

United States Department of Commerce

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Supplementary comparison of the measurement of the alpha and beta particle surface emission rates from large area sources (CCRI(II)-S10 LASCE)

Metrologia (2022)

P. De Felice R Anuradha J Bludovsky Christophe Bobin R B Bosley

Main text In 2009, the Consultative Committee for Ionizing Radiation (CCRI) approved its first supplementary comparison, to be organized by the ENEA (as the pilot laboratory), for the measurement of the alpha and beta particle surface (i.e. 2 solid angle) emission rate from large area sources of the type used for calibrating surface contamination monitors. Five sources were disseminated to the twenty-three participating laboratories consisting of one each of 241Am, 14C, 147Pm and 90Sr for emission rate measurements, with one additional 90Sr source for the evaluation of source uniformity. Measurements of the radionuclide activity and radionuclidic purity were also made although not strictly required. This report describes the organization of this comparison and the material and measurement methods used. The proposed supplementary comparison reference values (SCRV) for each of the comparison measurands are given, together with the Degrees of Equivalence and their associated uncertainties for each participating laboratory. The results of this supplementary comparison may be used as evidence by participating National Metrology Institutes (NMIs) and Designated Institutes (DIs) when submitting calibration and measurement capabilities (CMCs) for the given radionuclides for similar types of large area sources; this is an important aspect of this comparison, given that only one other international supplementary comparison for surface emission rates had been organized before. To reach the main text of this paper, click on Final Report . Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/ . The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Mutual Recognition

Alpha particle

10.1088/0026-1394/59/1a/06007

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Citations (3)

Standardization of 54 Mn, an electron capture radionuclide

Leena Joseph R. Anuradha D.B. Kulkarni V.V. Shaha

Source

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Citations (0)

LWR fuel-cycle costs as a function of burnup. Final report

W.A. Franks L. Goldstein Leena Joseph N. Nikmohammadian

Utilities may be able to decrease fuel-cycle costs as much as 5% in PWRs and 6% in BWRs by increasing discharge burnup to optimum practical limits. With one exception, this analysis of 12- and 18-month fuel cycles indicated a potential for still further cost reductions at higher burnup rates than those considered (39 GWd/MtU for BWRs and 55 GWd/MtU for PWRs).

Burnup

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Standardization of 131I: Implementation of CIEMAT/NIST method at BARC, India

Applied Radiation and Isotopes (2011)

D.B. Kulkarni R. Anuradha Priyanka J. Reddy Leena Joseph

NIST

Primary standard

Research centre

Coincidence Counting

10.1016/j.apradiso.2011.06.004

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Citations (6)

Standardization of 192Ir solution at BARC

Applied Radiation and Isotopes (2004)

R. Anuradha Leena Joseph D.B. Kulkarni R. Nathuram V.V. Shaha

Standard uncertainty

Coincidence Counting

Research centre

10.1016/j.apradiso.2004.10.006

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Citations (13)

14の優先食品アレルゲンのリスク評価における使用のための最新の集団最小適格線量分布【JST・京大機械翻訳】

Food and Chemical Toxicology (2020)

C Remington Benjamin Westerhout Joost Y Meima Marie Blom W. Marty G Kruizinga Astrid

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AN EVALUATION OF U$sup 233$ THORIUM FAST BREEDER POWER REACTORS

R. Hankel Leena Joseph J. Bobker A. Goldman R. Hanfling

A study of fast U/sup 233/-Th breeders was performed. Comparative evaluation of potential fuels for fast U/sup 233/-Th/sup 232/ breeders resulted in the selection of carbide fuel based on minimum fuel costs and attractive doubling time. A reference design of a 300 MW/sub e/ carbide-fueled reactor plant yielded an energy cost of 9.1 mill/kwh for a fuel burnup of 50,000 MW-d/ tonne. At equilibrium fuel cycle conditions, the reference design has a breeding ratio of 1.31 and a total inventory doubling time of 23 yr. Unique characteristics of U/sup 233/-Th fueled fast breeders such as continued buildup of reactivity after shutdown, the requirement for remote handling of fresh fuel, and the low delayed neutron fraction, were considered. It was concluded that these characteristics can be accommodated by appropriate design features without appreciably affecting either power generation cost or safety of operation. A comparison of the reference carbide-fueled design with a plutonium oxide-fueled fast breeder indicated comparable power generation costs and doubling times. In comparison with U/sup 233/-fueled, thermal homogeneous breeders, the fast U/sup 233/ breeder offers lower power generation cost (9.1 as against 10.6 mill/kwh for the thermal breeder) but longer doubling time (23 yr as against 6 to 20more » yr for the thermal breeder). (auth)« less

Breeder (animal)

Burnup

Breeder reactor

Plutonium-240

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A standard for the measurement of particle surface emission rate from large area reference sources

R. Anuradha D.B. Kulkarni Leena Joseph

Particle (ecology)

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Update of the BIPM comparison BIPM.RI(II)-K1.Co-60 of activity measurements of the radionuclide ⁶⁰Co to include the 2011 result of the CNEA (Argentina), the 2012 results of the BARC (India) and the NRC (Canada), and the 2014 result of the NIM (China)

Metrologia (2016)

C Michotte G Ratel S Courte P. Arenillas C. Balpardo

Since 2010, four national metrology institutes (NMI) have each submitted a sample of known activity of 60 Co to the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K1.Co-60. The values of the activity submitted were between about 175 kBq and 1600 kBq. The primary standardization results for the CNEA, Argentina and the BARC, India replace their earlier result of 2003 and 2001, respectively. There are now seventeen results in the BIPM.RI(II)-K1.Co-60 comparison. The key comparison reference value (KCRV) has been updated using the power-moderated weighted mean. The degrees of equivalence between each equivalent activity measured in the SIR and the KCRV have been calculated and the results are given in the form of a table. A graphical presentation is also given. Main text To reach the main text of this paper, click on Final Report . Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/ . The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Mutual Recognition

Standard uncertainty

10.1088/0026-1394/54/1a/06002

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Citations (4)

Standardization of 68 Ge- 68 Ga using 4πβ(LS)-γ coincidence counting system for activity measurements

Applied Radiation and Isotopes (2017)

D.B. Kulkarni Leena Joseph R. Anuradha M.S. Kulkarni Β. S. Tomar

NIST

Coincidence Counting

Tracing

Primary standard

10.1016/j.apradiso.2017.01.045

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Citations (10)