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Abstract

The gridded twin ion chamber developed at CBNM is used to measure the kinetic energy, mass and angular distributions of the fission fragments of 252-Cf in an advantageous 4pi geometry. Together with a neutron time-of-flight detector this experimental arrangement permits to measure the correlation between neutron emission, fragment angle, mass and energy in the spontaneous fission of 252-Cf. With the present experimental setup a mass resolution for fission fragments of 0.5 a.m.u., an angular resolution of DELTA cos[theta] = 0.05 and a timing resolution of 0.7 ns FWHM were observed. Preliminary evaluations of the raw experimental data are presented for the fission fragment mass distribution, the average total kinetic energy and their variance as function of mass, the angular distribution between fragments and neutrons, the number of neutrons emitted per fragment as function of fragment mass, the average neutron emission energies as function of mass, and the prompt fission neutron spectrum averaged over all fragments.

Additional information

Authors: BUDTZ JOERGENSEN C, JRC GEEL ESTAB. (BELGIUM);KNITTER H H JRC GEEL ESTAB. (BELGIUM), JRC GEEL ESTAB. (BELGIUM)
Bibliographic Reference: INTERNATIONAL SYMPOSIUM ON NUCLEAR FISSION, GAUSSIG (DDR), NOV. 11-15 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32456 ORA
Availability: Can be ordered online
Record Number: 1989124041200 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en