https://doi.org/10.1140/epja/s10050-020-00184-y
Regular Article – Experimental Physics
Post-neutron mass yield distribution in the thermal neutron induced fission of
Pu
1
Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India
2
Department of Physics, Kyungpook National University, Daegu, 41566, Korea
* e-mail: naikhbarc@yahoo.com
Received:
15
April
2020
Accepted:
23
June
2020
Published online:
21
July
2020
The cumulative and independent yields of various fission products within the mass range of 83–115 and 125–157 have been measured in the thermal neutron induced fission of by using radiochemical and off-line
-ray spectrometric technique. From the cumulative yields, post-neutron mass yields were obtained by using the charge distribution correction. From the mass yields data, full width at tenth maximum (FWTM) of light and heavy mass wings, the average light mass (<A
) and heavy mass (<A
) as well as the average neutrons number (
) were obtained. The mass yield data in the
(n
, f) reaction was compared with the similar data of
Th(n
, f) reaction to examine the nuclear structure effect. Surprisingly, different trends of standard I and standard II asymmetric mode of fission were seen in the two fissioning systems due to the different nuclear structure effect.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020