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Verbinski, V.V.; Weber, H. J.; Sund, R.E.

doi:10.1103/physrevc.7.1173

Cited by 147 publications

(167 citation statements)

References 20 publications

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“…In the articles by Smith et al 16 and by Verbinski et al 8 the prompt gamma ray energy spectrum of 252 Cf was shown to be softer than the prompt gamma ray spectrum of 235 U. This would indicate that the average energy of prompt gamma rays from the spontaneous fission of 252 Cf would have a lower average value than those from the induced fission of 235 U.…”

Section: Average Number Of Gamma Rays From Fissionmentioning

confidence: 95%

Evaluation of prompt fission gamma rays for use in simulating nuclear safeguard measurements

2002

Fuel and Energy Abstracts

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Section: Average Number Of Gamma Rays From Fissionmentioning

confidence: 95%

Evaluation of prompt fission gamma rays for use in simulating nuclear safeguard measurements

2002

Fuel and Energy Abstracts

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“…In addition to a comparison with Ref. [25] also a comparison with recent model calculations [27] is shown. The agreement is rather remarkable as the model calculation is able to reproduce well the observed structure which rules out the structureless and, hence, unphysical evaluation.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 13. Prompt fission γ-ray spectrum from the spontaneous fission from 252Cf [24] compared to the historical data of Verbinski et al [25] and recent measurements at LANL [26] (full black line). In Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 14. Prompt fission γ-ray spectrum from the spontaneous fission from 252Cf [24] compared to the historical data of Verbinski et al [25] and recent FIFRELIN model calculations [27]. The dotted line represents the evaluated data ENDF/B-VII.1.…”

Section: Methodsmentioning

confidence: 99%

“…In Fig. 13 an example of the PFGS of 252 Cf(sf) is given and compared to the historical measurements of Verbinski et al [25] as well as to measurements using the DANCE detector at Los Alamos National Laboratory (LANL) [26] and the ENDF/B-VII evaluation. Compared to the literature data a more complex structure especially in the low γ-ray energy part is observed as given in the insert of Fig.…”

Section: Methodsmentioning

confidence: 99%

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Fission cross-sections, prompt fission neutron and γ-ray emission in request for nuclear applications

Hambsch

Salvador-Castiñeira

Oberstedt

et al. 2016

EPJ Web of Conferences

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Abstract. In recent years JRC-IRMM has been investigating fission cross-sections of 240,242 Pu in the fast-neutron energy range relevant for innovative reactor systems and requested in the High Priority Request List (HPRL) of the OECD/Nuclear Energy Agency (NEA). In addition to that, prompt neutron multiplicities are being investigated for the major isotopes 235 U, 239 Pu in the neutron-resonance region using a newly developed scintillation detector array (SCINTIA) and an innovative modification of the Frisch-grid ionisation chamber for fission-fragment detection. These data are highly relevant for improved neutron data evaluation and requested by the OECD/Working Party on Evaluation Cooperation (WPEC). Thirdly, also prompt fission γ-ray emission is investigated using highly efficient lanthanide-halide detectors with superior timing resolution. Again, those data are requested in the HPRL for major actinides to solve open questions on an under-prediction of decay heat in nuclear reactors. The information on prompt fission neutron and γ-ray emission is crucial for benchmarking nuclear models to study the de-excitation process of neutron-rich fission fragments. Information on γ-ray emission probabilities is also useful in decommissioning exercises on damaged nuclear power plants like Fukushima Daiichi to which JRC-IRMM is contributing. The results on the 240,242 Pu fission cross section, 235 U prompt neutron multiplicity in the resonance region and correlations with fission fragments and prompt γ-ray emission for several isotopes will be presented and put into perspective.

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Assessment of the influence of the RaD-X balloon payload on the onboard radiation detectors

et al. 2016

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The NASA Radiation Dosimetry Experiment (RaD‐X) stratospheric balloon flight mission, launched on 25 September 2015, provided dosimetric measurements above the Pfotzer maximum. The goal of taking these measurements is to improve aviation radiation models by providing a characterization of cosmic ray primaries, which are the source of radiation exposure at aviation altitudes. The RaD‐X science payload consists of four instruments. The main science instrument is a tissue‐equivalent proportional counter (TEPC). The other instruments consisted of three solid state silicon dosimeters: Liulin, Teledyne total ionizing dose (TID) and RaySure detectors. The instruments were housed in an aluminum structure protected by a foam cover. The structure partially shielded the detectors from cosmic rays but also created secondary particles, modifying the ambient radiation environment observed by the instruments. Therefore, it is necessary to account for the influence of the payload structure on the measured doses. In this paper, we present the results of modeling the effect of the balloon payload on the radiation detector measurements using a Geant‐4 (GEometry ANd Tracking) application. Payload structure correction factors derived for the TEPC, Liulin, and TID instruments are provided as a function of altitude. Overall, the payload corrections are no more than a 7% effect on the radiation environment measurements.

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Prompt Gamma Rays fromU235(n,f),

Cited by 147 publications

References 20 publications

Evaluation of prompt fission gamma rays for use in simulating nuclear safeguard measurements

Evaluation of prompt fission gamma rays for use in simulating nuclear safeguard measurements

Fission cross-sections, prompt fission neutron and γ-ray emission in request for nuclear applications

Assessment of the influence of the RaD-X balloon payload on the onboard radiation detectors

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