Detection of the natural α decay of tungsten -: art. no. 064606

被引：97

作者：

Cozzini, C ^{[1
]}

Angloher, G

Bucci, C

von Feilitzsch, F

Hauff, D

Henry, S

Jagemann, T

Jochum, J

Kraus, H

Majorovits, B

Mikhailik, V

Ninkovic, J

Petricca, F

Potzel, W

Pröbst, F

Ramachers, Y

Rau, W

Razeti, M

Seidel, W

Stark, M

Stodolsky, L

Tolhurst, AJB

Westphal, W

Wulandari, H

机构：

[1] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[2] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[3] Lab Nazl Gran Sasso, I-67010 Assergi, Italy

[4] Tech Univ Munich, Phys Dept E15, D-85748 Garching, Germany

[5] Univ Tubingen, D-72076 Tubingen, Germany

来源：

PHYSICAL REVIEW C | 2004年 / 70卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.70.064606

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：

The natural alpha-decay of W-180 has been unambiguously detected for the first time. The alpha peak is found in a (gamma, beta, and neutron)-free background spectrum. This has been achieved by the simultaneous measurement of phonon and light signals with the CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) cryogenic detectors. A half-life of T-1/2=(1.8+/-0.2)x10(18) years and an energy release of Q=[2516.4+/-1.1(stat.)+/-1.2(sys.)] keV have been measured. New limits are also set on the half-lives of the other naturally occurring tungsten isotopes.

引用

页码：064606 / 1

页数：6

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