MOMENTUM TRANSFER IN HEAVY-ION-INDUCED FISSION

Journal Article · Thu Feb 15 04:00:00 EST 1962 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.125.1350· OSTI ID:4795696

Sikkeland, T; Haines, E L; Viola, Jr, V E

The forward linear momentum transfer in reactions leading to fission between heavy ions such as C/sup 12/, N/sup 14/, O/sup 16/, and Ne/sup 20/ and the target nuclei Ho, Au, Bi, and U/sup 238/ was investigatad by measuring the angular correlation between the fragments. The experimental values for the most probable parameters for center-of-mass transformation for these systems are compared with calculated values. For all the systems, the dominant reaction involves a full momentum transfer by the heavy ion to the fissioning nucleus. It is observed that for the system Au + Ne/sup 20/ and Bi + Ne/sip 20/, reactions with incomplete momentum deposition contribute 5.1% and 8.6%, respectively, to the total fission cross section. For U/sup 238/ targets, this admixture amounts to 12 to 17% for all ions at the highest bombarding energy and decreases with decreasing projectile energy. Possible reaction mechanisms leading to fission are suggested. A brief discussion of the method and its application is given. (auth)

• Research Organization: Univ. of California, Berkeley
• NSA Number: NSA-16-014008
• OSTI ID: 4795696
• Report Number(s): UCRL-9751; 0031-899X
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 125; ISSN PHRVA
• Country of Publication: United States
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
CROSS SECTIONS
ENERGY LEVELS
FISSION PRODUCTS
IONS
MEASURED VALUES
MOMENTUM
PHYSICS
TARGETS