Neutron-proton capture using polarized neutrons from 19 to 50 MeV

Fink, G.; Döll, P.; Hauber, S.; Haupenthal, M.; Klages, H.O.; Schieler, H.; Smend, F.; Wicke, G. D.

doi:10.1016/0375-9474(91)90806-h

Cited by 4 publications

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“…The spectra from these runs contain also the E~,--4.43 MeV gamma line from the same reaction. The efficiencies of the three NaI detectors were normalized to each other by comparing the intensities of the E~ = 15.11 MeV lines and taking into account the angular distribution of that radiation from the 12C(n, n'y) reaction, being equal to that of the 15.11 MeV photons from the 12C(p, p' ?,) reaction [25].…”

Section: Resultsmentioning

confidence: 98%

“…The response functions of the NaI detectors for monoenergetic photons have been determined experimentally by Fink et al [25] at the photon energy E;,= 15.11 MeV, and, for a large range of photon energies, by computer simulation [251. The resulting parametrization of the line shape was employed in the analysis of the photon spectra from the 12C(n, 7)13C reaction.…”

Section: Resultsmentioning

confidence: 99%

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Radiative capture of polarized neutrons by12C in the energy rangeE n=20?35 MeV

Wicke

Mondry

Smend

et al. 1992

Z. Physik A - Hadrons and Nuclei

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Radiative capture of polarized neutrons by 12C was investigated using a scintillating NE-213 target and three NaI detectors. Angular distributions of the capture gamma photons and analyzing powers were measured at laboratory angles of 55 ~ , 90 ~ and 125 ~ and neutron energies E,=20 to 35 MeV. Capture photons and recoil nuclei were detected in coincidence, the photons being identified by measuring the time of flight and analyzing the pulse shape in the NaI detectors. In the energy range above the centre of the GDR in 13C, a pronounced rise of the forward-backward asymmetry for the 12C(n, 7o) 13C reaction was observed indicating the presence of E2 capture interfering with direct and collective E1 capture. The direct-semidirect (DSD) model of radiative capture does not give a satisfactory description of the experimental results. 24.30.; 25.40. PACS:

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Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%