Measurement of the thermal-neutron-induced fission cross-section of 238U

P. D'hondt; C. Wagemans; A. Emsallem; R. Brissot

doi:10.1016/0306-4549(84)90073-2

Measurement of the thermal-neutron-induced fission cross-section of ²³⁸U

P. D'hondt, C. Wagemans, A. Emsallem, R. Brissot

Research output › peer-review

Abstract

The thermal-neutron-induced fission cross-section of ²³⁸U was measured at an intense and very clean thermal-neutron beam of the Grenoble high-flux reactor. The best ²³⁸U sample material used contained only 12 ppb of ²³⁵U. The fission fragments were detected with surface barrier detectors. Relative to a thermal fission cross-section of 587.6 barn for ²³⁵U, a value of (11 ± 2) μbarn was obtained for the ²³⁸U fission cross-section. By comparing this result with ²³⁸U(n, f) measurements in the resonance region, the existence of a negative resonance or resonances in ²³⁹U is demonstrated.

Original language	English
Pages (from-to)	485-488
Number of pages	4
Journal	Annals of nuclear energy
Volume	11
Issue number	10
DOIs	https://doi.org/10.1016/0306-4549(84)90073-2
State	Published - 1984

ASJC Scopus subject areas

Nuclear Energy and Engineering

Access to Document

10.1016/0306-4549(84)90073-2

Cite this

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title = "Measurement of the thermal-neutron-induced fission cross-section of 238U",

abstract = "The thermal-neutron-induced fission cross-section of 238U was measured at an intense and very clean thermal-neutron beam of the Grenoble high-flux reactor. The best 238U sample material used contained only 12 ppb of 235U. The fission fragments were detected with surface barrier detectors. Relative to a thermal fission cross-section of 587.6 barn for 235U, a value of (11 ± 2) μbarn was obtained for the 238U fission cross-section. By comparing this result with 238U(n, f) measurements in the resonance region, the existence of a negative resonance or resonances in 239U is demonstrated.",

author = "P. D'hondt and C. Wagemans and A. Emsallem and R. Brissot",

year = "1984",

doi = "10.1016/0306-4549(84)90073-2",

language = "English",

volume = "11",

pages = "485--488",

journal = "Annals of nuclear energy",

issn = "0306-4549",

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T1 - Measurement of the thermal-neutron-induced fission cross-section of 238U

AU - D'hondt, P.

AU - Wagemans, C.

AU - Emsallem, A.

AU - Brissot, R.

PY - 1984

Y1 - 1984

N2 - The thermal-neutron-induced fission cross-section of 238U was measured at an intense and very clean thermal-neutron beam of the Grenoble high-flux reactor. The best 238U sample material used contained only 12 ppb of 235U. The fission fragments were detected with surface barrier detectors. Relative to a thermal fission cross-section of 587.6 barn for 235U, a value of (11 ± 2) μbarn was obtained for the 238U fission cross-section. By comparing this result with 238U(n, f) measurements in the resonance region, the existence of a negative resonance or resonances in 239U is demonstrated.

AB - The thermal-neutron-induced fission cross-section of 238U was measured at an intense and very clean thermal-neutron beam of the Grenoble high-flux reactor. The best 238U sample material used contained only 12 ppb of 235U. The fission fragments were detected with surface barrier detectors. Relative to a thermal fission cross-section of 587.6 barn for 235U, a value of (11 ± 2) μbarn was obtained for the 238U fission cross-section. By comparing this result with 238U(n, f) measurements in the resonance region, the existence of a negative resonance or resonances in 239U is demonstrated.

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U2 - 10.1016/0306-4549(84)90073-2

DO - 10.1016/0306-4549(84)90073-2

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VL - 11

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IS - 10

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