THE PRODUCTION OF NEUTRON-RICH HEAVY-NUCLEI OF ASTROPHYSICAL INTEREST AT THE IRIS FACILITY

被引：16

作者：

BOLSHAKOV, VA

DERNYATIN, AG

MEZILEV, KA

NOVIKOV, YN

POLYAKOV, AG

POPOV, AV

SERGEEV, YY

TIKHONOV, VI

机构：

[1] Leningrad Nuclear Physics Institute, Gatchina

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1992年 / 70卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(92)95911-A

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Targets of ThCx and UCx have been used for production of Fr, Ra(Ac) nuclides of astrophysical interest at the IRIS mass separator on line with the 1 GeV proton synchrocyclotron at LNPI. A fine-grained powder of a target has been prepared using a special technology based on high temperature destruction of the thermostable organometallic compounds of U, Th or Cm (diphtalocyanine). New neutron-rich nuclides have been identified: Fr-232 (5 +/- 1 s), Ra-233 (30 +/- 5 s), Ra-234 (30 +/- 10 s). The yields of some nuclides from a CmCx target have been also determined.

引用

页码：69 / 74

页数：6

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