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General Reports, Various Sources, NUREGs, etc

OECD/NEA Burnup Credit Criticality Benchmark, Analysis of Phase II-B Results: Conceptual PWR Spent Fuel Transportation Cask

Author(s)

Nouri, A.

Publication Date

May 1, 1998

The OECD/NEA “Burn-up Credit Criticality Benchmark” working group has studied the effect of axial burn-up profile on the criticality of a realistic PWR spent fuel transport cask (Phase II-B). The final results of this benchmark are presented and analysed in this report. Nine basic cases and two additional accident configurations were considered with the following varying parameters: burn-up (0 GWd/t for fresh fuel, 30 and 50 GWd/t), fuel composition (actinides only and actinides with fifteen fission products), axial burn-up discretisation (1 or 9 zones).

Data

PWR Axial Burnup Profile Analysis

Author(s)

OCRWM

Publication Date

September 1, 2003

The purpose of this activity is to develop a representative “limiting” axial burnup profile for pressurized water reactors (PWRs), which would encompass the isotopic axial variations caused by different assembly irradiation histories, and produce conservative isotopics with respect to criticality. The effect that the low burnup regions near the ends of spent fuel have on system reactivity is termed the “end-effect”. This calculation will quantify the end-effects associated with Pressurized Water Reactor (PWR) fuel assemblies emplaced in a hypothetical 21 PWR waste package.

criticality commercial spent nuclear fuel end effect storage axial burnup profile isotopic concentrations 21 pwr waste package pwr snf cal-dsu-nu-000012

Data

BWR Axial Profile

Author(s)

OCRWM

Publication Date

September 1, 2004

The purpose of this calculation is to develop axial profiles for estimating the axial variation in burnup of a boiling water reactor (BWR) assembly spent nuclear fuel (SNF) given the average burnup of an assembly. A discharged fuel assembly typically exhibits higher burnup in the center and lower burnup at the ends of the assembly. Criticality safety analyses taking credit for SNF burnup must account for axially varying burnup relative to calculations based on uniformly distributed assembly average burnup due to the under-burned tips.

criticality end effect axial burnup profile bwr snf cal-dsu-nu-000005

Data

PWR Axial Burnup Profile Analysis

Author(s)

John M. Scaglione

Publication Date

September 1, 2003

burnup credit commercial spent nuclear fuel axial burnup profile 21 pwr waste package pwr snf

Data

PWR Axial Profile Evaluation

Author(s)

Harold Massie

Publication Date

September 1, 2003

This calculation compares results from criticality evaluations for a 21-assembly pressurized water reactor (PWR) waste package based on 12 axial burnup profile representations for commercial spent nuclear fuel (SNF) assemblies. The burnup profiles encompass the axial variations caused by different fuel assembly irradiation histories in a commercial PWR, including end effects, and the concomitant effect on reactivity in the waste package. The bounding axial burnup profiles in Table T of reference 6.3 are used for this analysis.

waste package mcnp axial burnup profile isotopic concentrations

Journal Articles

Research to Support Expansion of U.S. Regulatory Position on Burnup Credit for Transport and Storage Casks

Author(s)

Parks, C. V. ,

Wagner, J. C. ,

Gauld, I. C.

Publication Date

October 1, 2003

In 1999, the United States Nuclear Regulatory Commission (U.S. NRC) initiated a research program
to support the development of technical bases and guidance that would facilitate the implementation of burnup
credit into licensing activities for transport and dry cask storage. This paper reviews the following major areas of
investigation: (1) specification of axial burnup profiles, (2) assumption on cooling time, (3) allowance for
assemblies with fixed and removable neutron absorbers, (4) the need for a burnup margin for fuel with initial

burnup credit dry cask storage transport axial burnup profile

SED Publication Type

Document

Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management, National Report of the Commonwealth of Australia

Author

Commonwealth of Australia

Publication Date

October 1, 2011

This is the fourth National Report by Australia.1 The 2008 National Report and Australia’s presentation to the Third Review Meeting in 2009 highlighted the following major issues:
• progress on national uniformity;
• progress with development of a national waste classification scheme;
• radioactive waste management policy – achievements, consultation, strategy;
• spent fuel management and management of reprocessing waste;
• decommissioning;
• uranium mining waste management; and
• recruitment and skills management.

siting national report joint convention spent fuel management australia radioactive waste management

SED Publication Type

Document

Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management, National Report from the Commonwealth of Australia, October 2008

Author

Australian Government

Publication Date

October 1, 2008

This is the third National Report by Australia1. The 2005 National Report and Australia’s presentation to the Second Review Meeting in 2006 highlighted issues as to how each of the nine Australian jurisdictions within Australia’s federal system are complying with the Joint Convention. A challenge identified for Australia in the Rapporteur’s Report for Country Group 3 was “ensuring a coherent approach to regulations and waste management practice in view of the complex nature of national and regional legislation”.

siting national report joint convention spent fuel management australia radioactive waste management

SED Publication Type

Document

Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management, Australian National Report, October 2005

Author

Australian Radiation Protection and Nuclear Safety Agency

Publication Date

October 1, 2005

The responsibility for the governance of Australia is shared by the Australian government and the governments of the six states and two self governing territories. Responsibility for radiation health and safety in each State and Territory rests with the respective State/Territory government, unless the activity is carried out by an Australian government agency or a contractor to a Australian government agency; in those cases the activity is regulated by the Australian government.

siting national report joint convention spent fuel management australia radioactive waste management

SED Publication Type

Document

Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management, Australian National Report, July 2003

Author

Australian Radiation Protection and Nuclear Safety Agency

Publication Date

July 1, 2003

The responsibility for the governance of Australia is shared by Australia's federal government (also known as the Commonwealth government) and the governments of the six states and two self governing territories. Responsibility for radiation health and safety in each State and Territory rests with the respective State/Territory government, unless the activity is carried out by a Commonwealth agency or a contractor to a Commonwealth agency; in those cases the activity is regulated by the Federal government (Commonwealth government of Australia).

siting national report joint convention spent fuel management australia radioactive waste management

SED Publication Type