Application of a multiwire proportional chamber for the measurement of differential (n, charged particle) cross sections

Derndorfer, C.; Fischer, Ralf; Hille, P.; Stengl, G.; Vonach, H.

doi:10.1016/0029-554x(81)90370-0

Cited by 15 publications

(2 citation statements)

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“…The 5~ cQ4VTi reaction was studied by means of a multi-telescope system [5] irridiated by 14.1 MeV neutrons produced in the 250 keV accelerator of the Institut f'tir Radiumforschung und Kernphysik [6]. As this system is described in detail elsewhere only a very brief description of it will be given here.…”

Section: Experiments and Data Analysismentioning

confidence: 99%

“…The calibration of this monitor in terms of absolute neutron flux on the target foil in the multitelescope system was done in a separate calibration experiment, in which an aluminum foil was irridiated inside the multi-telescope chamber at the position of the target foil. A detailed description of the multi-telescope system is given in [5], the described calibration and procedures for data analysis are described in detail in [12] and [13]. Using the results of [10] for the ZTAl(n, c~) cross-section, the neutron flux at the position of all telescopes could be calibrated relative to the monitor count-rate with an accuracy of about 4%.…”

Section: "mentioning

confidence: 99%

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Investigation of the50Cr(n, ?)47Ti reaction atE n =14.1 MeV

Derndorfer¹,

Fischer²,

Hille³

et al. 1981

Z Physik A

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The energy and angular distribution of the e-particles from the 5~ ~) reaction for 14.1 MeV incident neutron energy was measured by means of a multitelescope system. The results are compared with calculations based on the statistical model of nuclear reactions including precompound processes. This comparison indicates that there is somewhat more emission of high energy ~particles than predicted from the conventional precompound model suggesting direct excitation of the lowest excited states of 47Ti. No indication is found for a reduction of the effective moment of inertia below the rigid body value. From the shape of the e-spectrum in the backward hemisphere and the known total number of levels below U = 3 MeV the level density parameters of 47Ti were determined as a=5.4+_0.3MeV 1 and A=-I.9_+0.2MeV in the framework of the back-shifted Fermi-Gas model.

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Section: Experiments and Data Analysismentioning

confidence: 99%

Section: "mentioning

confidence: 99%