Observation of 186mTa

NUCLEAR, HEAVY ION AND ATOMIC PHYSICS

Observation of ^186mTa

XU Yan-Bing，

DING Hua-Jie，

ZHANG Sheng-Dong，

YUAN Shuang-Gui，

YANG Wei-Fan，

LU Xi-Ting，

WANG Xian-Yi，

ZHAO Li-Min，

WANG Ping-Zhi，

LI Heng-Yuan

Nuclear Science and Techniques

Vol.17, No.1

pp.16-20

Published in print 20 Feb 2006

DOI：10.1016/S1001-8042(06)60004-3

CLC：O571.22,O571.31+5

37900

Unreported tantalum isomer ^186mTa has been produced through the reaction ¹⁸⁶W(n,p) by irradiation of ^natW with 14 MeV neutrons. The activity of ^186mTa and ¹⁸⁶Ta was measured using HPGe detectors and several X-γ as well as γ-γ coincidence arrangements. The ^186mTa has been identified by means of measuring known γ rays from ¹⁸⁶Ta β-decay. The half-life of ^186mTa has been determined to be (1.5±0.1) min.

186mTaNeutron reactionγ(X)-γ coincidenceβ-decay

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