Updated Decay Data Library for Actinides

Closed for proposals

Project Type

Coordinated Research Project

Project Code

F42006

CRP

1344

Approved Date

7 December 2004

Status

Closed

Start Date

15 September 2005

Expected End Date

15 September 2010

Completed Date

19 January 2012

Specific objectives

Production of improved/recommended decay data files of direct application in nuclear facilities, waste management, and for various design teams.

Timely updating of the recommended nuclear parameters to take consideration of a series of decay measurements induced by a previous CRP that had closed in 1986.

Impact

The impact of the CRP is measured by the fact that recommended data it produced are still widely used by the user community in IAEA MS. The updated nuclear decay data parameters produced by this CRP were adopted by the Decay Data Evaluation Project (DDEP) which is the main source of decay data for radionuclide metrology applications worldwide. The data are also disseminated through the DDEP webpage.
Feedback received from the user community confirms that the CRP products are being used and have an impact on the applications.

Relevance

The nuclear decay data of the minor and major actinides and their decay products that were produced by the CRP are among the most important decay parameters for applications spanning reactor operation, waste management, safeguards/nonproliferation, as well as non-energy applications. The data were included in the compilation of nuclear data for Safeguards that was produced by the Nuclear Data Section upon request from the IAEA Safeguards Department, and as mentioned above, they were adopted by the International Committee for Radionuclide Metrology through the DDEP website. The work has been published in peer-reviewed scientific journals and presented in international conferences. The CRP was therefore of the highest relevance to the Agency’s MP-1 and MP-2 programmatic activities.

CRP Publications

Type

Conference proceedings

Year

2011

Description

Title: New IAEA Actinide Decay Data Library; J. Korean Phys. Soc., 2011, vol.59, no.23, ND2010 pp. 1455-1460 (6 pages)

Country/Organization

Korean Physical Society

Type

Conference proceedings

Year

2007

Publication URL

https://doi.org/10.1051/ndata:07241

Description

Experimental studies to improve specific actinide decay data; Int. Conf. Nuclear Data for Science and Technology (Proc. Int. Conf. Nice, 2007), (BERSILLON, O., GUNSING, F., BAUGE, E., JACQMIN, R., LERAY, S., Eds), Vol. 1, EDP Sciences, Les Ulis, France (2008) 93–96.

Country/Organization

EDP Sciences, Les Ulis, France

Type

Conference proceedings

Year

2007

Description

Title: Updated Decay Data Library for Actinides. Presented at 2007 Annual Meeting of the Division of Nuclear Physics, October 10-13,2007, abstract id. BH.005

Country/Organization

American Physical Society

Type

non-serial publication - STI/PUB/1618

Year

2013

Publication URL

https://www.iaea.org/publications/8948/library-of-recommended-actinide-decay-dat…

Description

High quality decay data are an essential input across a wide range of nuclear applications, and none more so than in the case of the actinides and their related decay chain data. Well defined nuclear data are essential to ensure safe procedures within mining operations, various nuclear fuel cycles for energy generation, environmental monitoring, specific analytical techniques, and diagnostic and radiotherapeutic treatments in nuclear medicine. A major objective of the IAEA nuclear data programme is to promote improvements in the accuracy and quality of nuclear data used in science and technology. The contents of this report constitute the results of a coordinated research project established to assemble an updated decay data library for actinides. Recommended half-lives and decay scheme data have been comprehensively evaluated, and are tabulated in terms of a carefully selected set of actinide radionuclides.

Country/Organization

International Atomic Energy Agency

Type

Scientific peer-review journal

Year

2008

Publication URL

https://doi.org/10.1016/j.apradiso.2008.02.005

Description

Article title: IAEA Coordinated Research Project: Updated decay data library for actinides

Country/Organization

Elsevier Publisher

Type

Conference proceedings

Year

2011

Description

Title: Decay studies of minor actinide nuclides, and future opportunities for improving the decay data of neutron-rich fission products; Int. Conf. Reactor Physics, Nuclear Power: a Sustainable Resource, PHYSOR-2008 (Proc. Int. Conf. Interlaken, Switzerland, 2008), (CHAWLA, R., DANG, V.N., MIKITYUK, K., Eds), Vol. 1, Curran Associates, Inc., New York (2011) 108–115.

Country/Organization

Curran Associates, Inc., New York

Type

Scientific peer-review journal

Year

2007

Publication URL

https://doi.org/10.1016/j.nima.2007.04.096

Description

Title: Measurement of the 240Pu half-life; Nucl. Instrum. Methods Phys. Res. A579 (2007) 458–460.

Country/Organization

Elsevier Publisher

Type

Scientific peer-reviewed journal

Year

2007

Publication URL

https://doi.org/10.1016/j.apradiso.2006.08.011

Description

Title: Measurements of the half-life of 246Cm and the alpha-decay emission probabilities of 246Cm and 250Cf; Appl. Radiat. Isot. 65 (2007) 335–340.

Country/Organization

Elsevier Publisher

Type

Scientific peer-review journal

Year

2011

Publication URL

https://doi.org/10.1016/j.nima.2011.01.147

Description

Title: Measurements of absolute gamma-ray emission probabilities in the decay of 233Pa, Nucl. Instrum. Methods Phys. Res. A652 (2011) 654–656.

Country/Organization

Elsevier Publisher

Type

Conference proceedings

Year

2008

Publication URL

https://doi.org/10.1063/v1090.frontmatter

Description

Title: Studies of nuclear structure and decay data properties of actinide nuclei”, 13th Int. Symp. on Capture Gamma-ray Spectroscopy and Related Topics (CGS-13), (Proc. Int. Conf. Cologne, 2008), (BLAZHEV, A., JOLIE, J., WARR, N., ZILGES, A., Eds), AIP Conf. Proc., Vol. 1090 (2009) 199–206.

Type

Scientific peer-review journal

Year

2010

Publication URL

https://doi.org/10.1016/j.apradiso.2010.06.009

Description

Title: Measurements of X- and ?-ray emission probabilities in the ß– decay of 233Pa, Appl. Radiat. Isot. 68 (2010) 2382–2386.

Country/Organization

Elsevier Publisher

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