Benchmarking the Sandia Pulsed Reactor III cavity neutron spectrum for electronic parts calibration and testing

Kelly, J.G.; Griffin, Patrick J.; Fan, Wesley C.

doi:10.1109/23.273523

Cited by 19 publications

(2 citation statements)

References 5 publications

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“…The spectrum was obtained from a detailed three-dimensional neutron-transport model of the reactor utilizing the code MCNP5 ͑Ref. 16 The energy distribution of the primary Si recoils was computed using the code SPECTER ͑Ref. 15 The results are given by the dashed line in Fig.…”

Section: Collision Cascades and Correlation-function Analysismentioning

confidence: 99%

Model of defect reactions and the influence of clustering in pulse-neutron-irradiated Si

Myers

Cooper

Wampler

2008

Journal of Applied Physics

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Section: Collision Cascades and Correlation-function Analysismentioning

confidence: 99%

Model of defect reactions and the influence of clustering in pulse-neutron-irradiated Si

Myers

Cooper

Wampler

2008

Journal of Applied Physics

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“…The experimental data on the number of nuclear reactions at the centers of the nuclear reactor metal cores examined in this work were obtained by the authors and by researchers from other Russian and foreign scientific centers [4][5][6][7][8][9].…”

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confidence: 99%

Studying Neutron Spectra at the Centers of the Metal Cores of Fast Research Reactors

et al. 2005

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Two-component representation of the neutron spectrum of fast research reactors

Sevast'yanov¹,

Koshelev²,

Maslov³

et al. 1995

At Energy

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An important element of the state system for guaranteeing the unity of neutron measurements performed on nuclearphysics setups is the reference neutron field. By definition [1, 2] this field consists of a region of the neutron field of the nuclear-physics setup that is fixed in space and is certified with respect to its constant spectral characteristics.The basic principle of supporting neutron measurements on nuclear-physics setups, based on the requirements of economy and taking into account the complexity and labor intensiveness of metrological work, is decentralized by unified (regulated) reproduction of the units of quantities under conditions which approach as close as possible the working measurements with one-step transfer of the dimensions of the units directly to the means of measurement [2].It is obvious that the requirement of guaranteeing unity with the decentralized approach to the creation of the reference fields is directly associated with unification of both the means of measurements and the methods for determining the spectral characteristics from the experimental data. The latter procedure is especially important for reference fields of neutrons from pulsed reference nuclear reactors, for which the method of integral detectors (a general name for methods employing the integral form of the response of the detectors: neutron-activational, different methods with fission detectors, and others) is, with respect to all nuclear-physical factors, almost the only method of investigation and reproduction of spectral characteristics. The problem of determining the neutron spectrum from data obtained from integral detectors is an improperly posed problem, and the stability of the results of solving the problem depends, to a large degree, on the choice of the a priori (initial) approximation.Using the approach, proposed in [3], for forming an a priori spectrum and the results of the successful application of this approach for the description of the neutron spectrum for the standard field at the center of the BIR-2 core [4], we attempted to work out a unified representation of the neutron spectrum in the intracore regions of reactors with a predominately metal core. Pulsed research reactors with a metal core are employed by many scientific laboratories (SPR II, III at the Sandia National Laboratory in the USA, BIR-2 and BR-1 at the All-Union Scientific-Research Institute of Electrophysical Apparatus (VNIIt~F), BARS-2 and -5 at All-Union Scientific-Research Institute of Technophysical Apparatus (VNIITF), Russia; Caliban in France; YAYOI in Japan; CFBR II in China; etc. [5]). Because of the good screening by the fissioning materials, the neutron spectrum in the intracore cavities of such reactors is, as a rule, not influenced by the scattered neutrons of the reactor enclosure (scattering by objects and equipment surrounding the core, in the walls of the containment shell, and so on) and when a unified representation of the spectrum is possible, the spectrum can be used as a specialized standard for fast neutr...

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Benchmarking the Sandia Pulsed Reactor III cavity neutron spectrum for electronic parts calibration and testing

Abstract: The SPR 111 bare cavity spectrum and integral parameters have been determined with 24 measured spectrum sensor responses and an independent, detailed, transport calculation. This environment qualifies as a benchmark field for electronic parts testing.

Cited by 19 publications

References 5 publications

Model of defect reactions and the influence of clustering in pulse-neutron-irradiated Si

Model of defect reactions and the influence of clustering in pulse-neutron-irradiated Si

Studying Neutron Spectra at the Centers of the Metal Cores of Fast Research Reactors

Two-component representation of the neutron spectrum of fast research reactors

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