Templates of expected measurement uncertainties for prompt fission neutron spectra

被引：0

作者：

Neudecker, Denise ^{[1
]}

Devlin, Matthew ^{[1
]}

Haight, Robert C. ^{[1
]}

Kelly, Keegan J. ^{[1
]}

Marini, Paola ^{[2
,3
]}

Carlson, Allan D. ^{[4
]}

Taieb, Julien ^{[2
,5
]}

White, Morgan C. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[2] CEA, DAM, DIF, F-91297 Arpajon, France

[3] Univ Bordeaux, UMR5797, CNRS, LP2I, F-33170 Gradignan, France

[4] NIST, Gaithersburg, MD 20899 USA

[5] Univ Paris Saclay, CEA, LMCE, F-91680 Bruyeres Le Chatel, France

来源：

EPJ NUCLEAR SCIENCES & TECHNOLOGIES | 2023年 / 9卷

关键词：

ENERGY-SPECTRUM; NUCLEAR-SCIENCE; DATA LIBRARY; INCIDENT; U-235;

D O I：

10.1051/epjn/2023013

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

In this paper, we provide templates of uncertainty sources expected to appear for three measurement types of prompt fission neutron spectra (PFNS): (1) shape measurements, (2) clean-ratio shape, that is the monitor PFNS are measured in nearly exactly the same surrounding as the PFNS of interest, and (3) indirect ratios, where the detector efficiency is backed out from PFNS monitor measurements. Information is also listed that is needed to faithfully include PFNS in nuclear data evaluations to guide experimenters on how to best report data and metadata for their measurements. These templates also suggest a typical range of pertinent uncertainty values and their correlations in case realistic uncertainties cannot be estimated from information on the measurement itself. The templates were based on a literature review, information found in EXFOR for Cf-252, U-235,U-238, and Pu-239 PFNS, and enhanced by expertise from experimenters contributing to these PFNS templates.

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页数：12

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