A New Half-Life Value of <sup>79</sup>Se

Chin. Phys. Lett.

1996, Vol. 13

Issue (1): 9-12 DOI:

Original Articles

A New Half-Life Value of ⁷⁹Se

JIANG Song-sheng;GUO Jing-ru;JIANG Shan;LI Chun-sheng, CUI An-zhi;HE Ming

China Institute of Atomic Energy, Beijing 102413

Cite this article:

JIANG Song-sheng, GUO Jing-ru, JIANG Shan et al 1996 Chin. Phys. Lett. 13 9-12

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Abstract In the recent charts of the nuclides an accepted half-life of ⁷⁹Se is only an upper limit, < 6.5 x 10⁴ a. In this letter, A new half-life of ⁷⁹Se has been measured to be (1.13 ± 0.17) x 10⁶a. The number of ⁷⁹Se atoms was determined from measured ⁷⁹Se /Se ratios with the accelerator mass spectrometry technique and the decay rate of ⁷⁹Se was determined by counting the emitted β rays with a liquid scintillation spectrometer.

Keywords: 23.40.-s 07.75.+h 27.50.+e

Published: 01 January 1996

PACS:	23.40.-s	(β-decay;double β-decay; electron and muon capture)
	07.75.+h	(Mass spectrometers)
	27.50.+e	(59 ≤ A ≤ 89)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1996/V13/I1/09

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	JIANG Song-sheng
	GUO Jing-ru
	JIANG Shan
	LI Chun-sheng
	CUI An-zhi
	HE Ming

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