METHOD FOR DETERMINATION OF THE TOTAL DELAYED NEUTRON YIELD RELATIONS IN MONOENERGETIC NEUTRON-INDUCED FISSION OF HEAVY NUCLEI ON THE BASIS OF MEASUREMENTS OF TEMPORARY DELAYED NEUTRON CHARACTERISTICS

Authors & Affiliations

Isaev S.G., Piksaikin V.M., Roshchenko V.A.
Russian Federation State Scientific Centre — A.I. Leipunsky Institute of Physics and Power Engineering, Obninsk, Russia

Abstract

In the present work the new method of total delayed neutron yield determination on the basis of measurement of delayed neutron group parameters is proposed. Conclusive advantage of the present method is that for determination of the total delayed neutron yields it is necessary to measure only relative abundances and group periods of delayed neutrons. Within the framework of the new approach the information on primary neutrons flux is not required. The energy dependence of absolute efficiency of the neutron detector is excluded from consideration; as for determination of the total delayed neutron yield it is necessary to measure only relative delayed neutron characteristics. Besides experimental set-up becomes simpler, namely there is no fission chamber.

Keywords
total yield, delayed neutron, group parameters, relative delayed neutron characteristics, heavy nuclei fission

Article Text (in Russian, PDF)

References

UDC 539.17

Problems of Atomic Science and Technology. Series: Nuclear Constants", issue 1-2, 2006