Search for scission neutrons in the spontaneous fission of 252Cf -: art. no. 044616

被引:11
作者
Hwang, JK [1 ]
Ramayya, AV
Hamilton, JH
Greiner, W
Cole, JD
Ter-Akopian, GM
Oganessian, YT
Daniel, AV
机构
[1] Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA
[2] Goethe Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany
[3] Joint Inst Heavy Ion Res, Oak Ridge, TN 37830 USA
[4] Idaho Natl Lab, Idaho Falls, ID 83415 USA
[5] Joint Nucl Res Inst, RU-141980 Dubna, Russia
来源
PHYSICAL REVIEW C | 1999年 / 60卷 / 04期
关键词
D O I
10.1103/PhysRevC.60.044616
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
In the spontaneous fission of Cf-252, we observed that the population of spin 2(+) in Te-136 is closely correlated with the population of spin 4(+) of its partner Pd-114. We attribute our results to the emission of two neutrons at scission carrying away two units of angular momentum and the yield is 0.06(2) per 100 spontaneous fission (SF) events whereas the two neutron normal fission yield is 0.12(3) per 100 SF for the Te-136 and Pd-114 pair. The yield for fission with four scission neutrons for Te-136 and Pd-112 is observed to be approximate to 0 whereas the four neutron hot fission yield is 0.28(4) per 100 SF events. [S0556-2813(99)03109-X].
引用
收藏
页数:5
相关论文
共 9 条
[1]   VELOCITY AND ANGULAR DISTRIBUTIONS OF PROMPT NEUTRONS FROM SPONTANEOUS FISSION OF CF252 [J].
BOWMAN, HR ;
THOMPSON, SG ;
MILTON, JCD ;
SWIATECKI, WJ .
PHYSICAL REVIEW, 1962, 126 (06) :2120-&
[2]  
BUDTZJORGENSEN C, 1986, BLG586
[3]   New insights from studies of spontaneous fission with large detector arrays [J].
Hamilton, JH ;
Ramayya, AV ;
Zhu, SJ ;
TERAkopian, GM ;
Oganessian, YT ;
Cole, JD ;
Rasmussen, JO ;
Stoyer, MA .
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 35, 1995, 35 :635-704
[4]   TRANSITION-PROBABILITY, B(E2)UP, FROM THE GROUND TO THE 1ST-EXCITED 2+ STATE OF EVEN-EVEN NUCLIDES [J].
RAMAN, S ;
MALARKEY, CH ;
MILNER, WT ;
NESTOR, CW ;
STELSON, PH .
ATOMIC DATA AND NUCLEAR DATA TABLES, 1987, 36 (01) :1-96
[5]   Cold (neutronless) α ternary fission of 252Cf [J].
Ramayya, AV ;
Hamilton, JH ;
Hwang, JK ;
Peker, LK ;
Kormicki, J ;
Babu, BRS ;
Ginter, TN ;
Sandulescu, A ;
Florescu, A ;
Carstoiu, F ;
Greiner, W ;
Ter-Akopian, GM ;
Oganessian, YT ;
Daniel, AV ;
Ma, WC ;
Varmette, PG ;
Rasmussen, JO ;
Asztalos, SJ ;
Chu, SY ;
Gregorich, KE ;
Macchiavelli, AO ;
Macleod, RW ;
Cole, JD ;
Aryaeinejad, R ;
Butler-Moore, K ;
Drigert, MW ;
Stoyer, MA ;
Bernstein, LA ;
Lougheed, RW ;
Moody, KJ ;
Prussin, SG ;
Zhu, SJ ;
Griffin, HC ;
Donangelo, R .
PHYSICAL REVIEW C, 1998, 57 (05) :2370-2374
[6]   Observation of 10Be emission in the cold ternary spontaneous fission of 252Cf [J].
Ramayya, AV ;
Hwang, JK ;
Hamilton, JH ;
Sandulescu, A ;
Florescu, A ;
Ter-Akopian, GM ;
Daniel, AV ;
Oganessian, YT ;
Popeko, GS ;
Greiner, W ;
Cole, JD .
PHYSICAL REVIEW LETTERS, 1998, 81 (05) :947-950
[7]  
Schultz N., COMMUNICATION
[8]  
SCHULTZ N, UNPUB P 2 INT C NUCL
[9]  
WAGEMANS C., 1991, NUCL FISSION PROCESS