FIZIKA B 11 (2002)  4, 201-222

TWO-STEP CASCADES OF THE ¹⁸⁵W COMPOUND NUCLEUS g-DECAY

VALERY A.BONDARENKO^a, JAROSLAV HONZÁTKO^b, VALERY A. KHITROV^c, ANATOLY M. SUKHOVOJ^c and IVO TOMANDL^b

^aInstitute of Solid State Physics, University of Latvia, LV 2169 Salaspils, Latvia
^bNuclear Physics Institute, CZ-25068 Rez near Prague, Czech Republic
^cFrank Laboratory of Neutron Physics, Joint Institute for Nuclear Research,
141980 Dubna, Russia

Received 27 June 2002; Accepted 17 January 2003
Online 7 February 2003

Two-step cascades from the ¹⁸⁴W(n_th,g)¹⁸⁵W reaction were studied in a g- g coincidence measurement. The total intensity of cascades terminating at levels with the energy Ł 2.2 MeV was estimated for the first time. The decay scheme of ¹⁸⁵W including 781 cascades was established up to the excitation energy @ 3.3 MeV. As in the nuclei studied earlier, the excitation spectrum of intermediate levels of the most intense cascades was found to be harmonic.

PACS numbers: 25.40.Lw, 27.70.+q
UDC 539.172.4

Keywords: ¹⁸⁴W(n_th,g)¹⁸⁵W reaction, two-step g-cascades, decay scheme of ¹⁸⁵W, harmonic excitation spectrum of intermediate levels

Copyright by The Croatian Physical Society
For problems or questions please contact fizika@fizika.hfd.hr