Neutron-neutron angular correlations in spontaneous fission of 252Cf

被引：24

作者：

Gagarski A.M. ^{[1
]}

Guseva I.S. ^{[1
]}

Sokolov V.E. ^{[1
]}

Val'ski G.V. ^{[1
]}

Petrov G.A. ^{[1
]}

Krinitsin D.O. ^{[1
]}

Nikolaev D.V. ^{[1
]}

Zavarukhina T.A. ^{[1
]}

Petrova V.I. ^{[1
]}

机构：

[1] St. Petersburg Nuclear Physics Institute, Russian Academy of Sciences, Gatchina

来源：

Bull. Russ. Acad. Sci. Phys. | 2008年 / 6卷 / 773-777期

基金：

俄罗斯基础研究基金会;

关键词：

Fission reactions;

D O I：

10.3103/S1062873808060130

中图分类号：

O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

An experiment has been carried out to study neutron-neutron angular correlations in spontaneous fission of 252Cf. Angular dependences of the number of neutron-neutron coincidences obtained in the experiment were compared with the results of the Monte Carlo calculations for various neutron detection thresholds in the range 425-1600 keV. It was inferred that 10-11% of the total number of prompt neutrons from 252Cf (s.f.) in the laboratory system were emitted isotropically and may probably be interpreted as neutrons directly associated with the instant of scission of the nucleus. The analysis allowed their energy distribution to be determined as well. A similar method was also used to describe the angular correlation of prompt neutrons that accompanied the reaction 235 U(nth,f). © Allerton Press, Inc. 2008.

引用

页码：773 / 777

页数：4

共 50 条

[31] TRANSMISSION MEASUREMENT OF 252CF FISSION-NEUTRON SPECTRUM
GREEN, L
TRANSACTIONS OF THE AMERICAN NUCLEAR SOCIETY, 1968, 11 (02): : 606 - &
[32] SPONTANEOUS FISSION NEUTRON SPECTRUM OF CF-252
SMITH, AB
FIELDS, PR
ROBERTS, JH
PHYSICAL REVIEW, 1957, 108 (02): : 411 - 413
[33] Fragment angular momentum and descent dynamics in 252Cf spontaneous fission
Popeko, GS
Ter-Akopian, GM
Hamilton, JH
Kormicki, J
Daniel, AV
Oganessian, YT
Ramayya, AV
Hwang, JK
Sandulescu, A
Florescu, A
Greiner, W
Kliman, J
Morhac, M
Rasmussen, JO
Stoyer, MA
Cole, JD
ENAM 98: EXOTIC NUCLEI AND ATOMIC MASSES, 1998, 455 : 708 - 710
[34] Fragment angular momentum and discent dynamics in 252Cf spontaneous fission
Popeko, GS
Ter-Akopian, GM
Hamilton, J
Konnicki, J
Daniel, AV
Oganessian, YT
Ramayya, AV
Hwang, JK
Sandulescu, A
Florescu, A
Greiner, W
Kliman, J
Morch, M
Rasmussen, J
Stoyer, MA
Cole, JD
IZVESTIYA AKADEMII NAUK SERIYA FIZICHESKAYA, 1999, 63 (05): : 879 - 882
[35] Regression analysis of coincidence measurements for determinating the neutron emission rate of 252Cf spontaneous fission
Li Yong-Ming
Wang Liang
Chen Xiang-Lin
Ruan Nian-Show
Zhao De-Shan
ACTA PHYSICA SINICA, 2018, 67 (24)
[36] Cold spontaneous fission processes of 252Cf and the structure of neutron rich Ba and La nuclei
Hamilton, JH
Ramayya, AV
Hwang, JK
Greiner, W
Zhu, SJ
Sandulescu, A
Floresscu, A
Kormicki, J
Ter-Akopian, G
Oganessian, Y
Daniel, AV
Popeko, GS
Kliman, J
Morhác, M
Cole, JD
Aryaeinejad, R
Drigert, MW
Collins, WE
Ma, WC
Jones, EF
Peker, LK
Gore, PM
Drafta, G
Babu, BRS
Wang, G
Deng, JK
ACTA PHYSICA SLOVACA, 1999, 49 (01) : 31 - 42
[37] Nuclear Structure Studies of Some Neutron Rich Nuclei Produced in 252Cf Spontaneous Fission
Ramayya, A. V.
Hamilton, J. H.
Hwang, J. K.
11TH INTERNATIONAL SPRING SEMINAR ON NUCLEAR PHYSICS: SHELL MODEL AND NUCLEAR STRUCTURE - ACHIEVEMENTS OF THE PAST TWO DECADES, 2015, 580
[38] Neutron angular correlations in spontaneous and neutron-induced fission
Vogt, R.
Randrup, J.
PHYSICAL REVIEW C, 2014, 90 (06):
[39] 252CF FISSION NEUTRON SPECTRUM FROM 0.003 TO 15.0 MEV
MEADOWS, JW
PHYSICAL REVIEW, 1967, 157 (04): : 1076 - &
[40] Structures of the neutron-rich nuclei observed in fission of 252Cf
Ramayya, A. V.
Hamilton, J. H.
Goodin, C. J.
Brewer, N. T.
Hwang, J. K.
Luo, Y. X.
Liu, S. H.
Rasmussen, J. O.
Lee, I. Y.
Stone, N. J.
Daniel, A. V.
Zhu, J.
FRONTIERS IN GAMMA-RAY SPECTROSCOPY 2012 - FIG12, 2014, 1609 : 113 - 124

← 1 2 3 4 5 →