THICK-TARGET YIELDS OF IODINE ISOTOPES FROM PROTON INTERACTIONS IN TE, AND THE DOUBLE-BETA DECAYS OF TE-128,TE-130

被引:12
作者
DACRUZ, MTF [1 ]
BARDAYAN, DW [1 ]
CHAN, Y [1 ]
GARCIA, A [1 ]
HINDI, MM [1 ]
LARIMER, RM [1 ]
LESKO, KT [1 ]
NORMAN, EB [1 ]
ROSSI, DF [1 ]
STOKSTAD, RG [1 ]
WIETFELDT, FE [1 ]
ZLIMEN, I [1 ]
机构
[1] UNIV CALIF BERKELEY, DEPT PHYS, BERKELEY, CA 94720 USA
来源
PHYSICAL REVIEW C | 1993年 / 48卷 / 06期
关键词
D O I
10.1103/PhysRevC.48.3106
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 measured thick-target yields of I-126, I-128, I-130 from bombardments of natural Te targets with 15-, 30-, 45-, and 50-MeV protons, together with iodine production cross sections for 1.85- and 5.0-GeV protons. Using these data, we have estimated the relative cosmic-ray induced production of Xe-126, Xe-128, and Xe-130 in Te ores. These quantities are significantly different from those used previously in a determination of the ratio of the double-beta decay half-lives of Te-130 and Te-128, and as a result the cosmic-ray correction is smaller than previously assumed. A revised correction of cosmic-ray produced xenon can change the half-life ratio by about 6%. This quantity is of importance because it can be used to set a limit on the 0-nu double-beta decay mode.
引用
收藏
页码:3106 / 3109
页数:4
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