NEUTRON MULTIPLICITY IN DEEP INELASTIC-COLLISIONS - 400 MEV CU+AU SYSTEM

被引：78

作者：

TAMAIN, B ^{[1
]}

CHECHIK, R ^{[1
]}

FUCHS, H ^{[1
]}

HANAPPE, F ^{[1
]}

MORJEAN, M ^{[1
]}

NGO, C ^{[1
]}

PETER, J ^{[1
]}

DAKOWSKI, M ^{[1
]}

LUCAS, B ^{[1
]}

MAZUR, C ^{[1
]}

RIBRAG, M ^{[1
]}

SIGNARBIEUX, C ^{[1
]}

机构：

[1] CENS,DPH-N MF,F-91190 GIF SUR YVETTE,FRANCE

来源：

NUCLEAR PHYSICS A | 1979年 / 330卷 / 01期

关键词：

D O I：

10.1016/0375-9474(79)90549-9

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：

We have detected in nine different positions of space the neutrons associated with the collision of 63Cu on 197Au at 400 MeV bombarding energy. The deep inelastic products were detected at two different angles: close to the grazing angle and 30° forwards of it. Their masses were measured using a time-of-flight technique. The neutrons were detected in coincidence with the fragments - the efficiency of the neutron detectors was measured relatively to a 252Cf source during beam time. The neutron threshold was set at 300 keV. Within an accuracy of 10% all the emitted neutrons are evaporated by the fully accellerated deep inelastic fragments. It is shown that the excitation energy is shared between the fragments in proportion to their masses and that the relaxation time for internal equilibration of the composite system is very short (∼10-22 s). © 1979.

引用

页码：253 / 268

页数：16

共 14 条

[1] COINCIDENCE STUDY OF DEEP INELASTIC-COLLISIONS IN AR-40+NI-58 SYSTEM AT 280 MEV [J].