A fission-fragment-sensitive target for X-ray spectroscopy in neutron-induced fission

Ethvignot, T.; Granier, T.; Giot, L.; Casoli, P.; Nelson, R. O.

doi:10.1016/s0168-9002(02)01096-3

Cited by 6 publications

(2 citation statements)

References 12 publications

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“…The radiation pulse here is much larger than that at conventional beam-target facilities and so the problems of detector paralysis are more severe. Compensated ion chambers will likely help, but our colleagues from the CEA (France) have also developed a compensation scheme for use with surface-barrier diodes, supplied as solar cells [15,16]. These compensated solar cells also have the advantage that a short-lived sample can be placed directly in front of the active cell for fission cross section measurements [17].…”

Section: Fission Neutron Detectors In High Flux Environmentsmentioning

confidence: 99%

Neutron Detector Systems for Neutron Nuclear Data Measurements

Haight¹

2007

Proceedings of International Workshop on Fast Neutron Detectors and Applications — PoS(FNDA2006)

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Nuclear data are essential in a wide range of applications including nuclear power reactors, nuclear safety, space radiation effects, medical radiation diagnostics and therapy, radiation effects on semiconductors, passive and active interrogation schemes, radiography, acceleratordriven systems, astrophysics and basic science research. These data are embodied in evaluated data libraries and reaction models and are used in radiation transport codes. The accuracy of the calculations and therefore the credibility of the results depend on the accuracy of the input data. Continuing progress in the quality of these data has led to the present situation where a great variety of effects can be calculated with confidence, with limits being determined often by other considerations such as the representation of the system to be calculated, thermal-hydraulic properties including their time dependence, and so forth. As computer calculations get ever faster and more accurate, however, new demands will be placed on the both on the codes and the input data. Some of the most important data are obtained with neutron detectors. This talk will review the properties of neutron detectors used for nuclear data measurements and the requirements put on them to address the need for more accurate and complete nuclear data. In this review emphasis will be given to detector systems developed and used for nuclear physics and nuclear data measurements with spallation neutron sources at the Los Alamos Neutron Science Center (LANSCE) at the Los Alamos National Laboratory.

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Section: Fission Neutron Detectors In High Flux Environmentsmentioning

confidence: 99%

Neutron Detector Systems for Neutron Nuclear Data Measurements

Haight¹

2007

Proceedings of International Workshop on Fast Neutron Detectors and Applications — PoS(FNDA2006)

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“…Since then, solar cells have been used to tag fission events for prompt gamma-ray spectroscopy [4], as fission fragment-sensitive targets for spectroscopy of prompt fission-fragment X-rays [5], and to compensate for large coincident gamma-ray signals [6].…”

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confidence: 99%

DEATH-STAR: Silicon and Photovoltaic Fission Fragment Detector Arrays for Light-Ion Induced Fission Correlation Studies

Koglin

Burke

Fisher

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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The Direct Excitation Angular Tracking pHotovoltaic-Silicon Telescope ARray (DEATH-STAR) combines a series of 12 silicon detectors in a ∆E − E configuration for charged particle identification with a large-area array of 56 photovoltaic (solar) cells for detection of fission fragments. The combination of many scattering angles and fission fragment detectors allows for an angular-resolved tool to study reaction cross sections using the surrogate method, anisotropic fission distributions, and angular momentum transfers through stripping, transfer, inelastic scattering, and other direct nuclear reactions. The unique photovoltaic detectors efficiently detect fission fragments while being insensitive to light ions and have a timing resolution of 15.63±0.37 ns. Alpha particles are detected with a resolution of 35.5 keV 1σ at 7.9 MeV. Measured fission fragment angular distributions are also presented.

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