Decay study of 20Na and its beta-delayed 16O recoiling

The decay of 20Na of astrophysical reactions has been studied deeply via 20Ne(p, n)20Na reaction. A new β-delayed α decay with α energy of 5 896 ± 6 keV and relative intensity of 0. 002 4 ± 0. 000 3 was discovered. At the same time the 16O recoiling in β+-delayed α decay of 20Na was observed in expe...

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Veröffentlicht in:	中国科学：数学英文版 1997 (6), p.638-643
1. Verfasser:	黄文学徐晓冀马瑞昌胡志强郭俊盛郭应祥刘洪业徐连联
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Sprache:	eng
Schlagworte:	beta-delayed decay energy loss nuclear particle recoil
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description	The decay of 20Na of astrophysical reactions has been studied deeply via 20Ne(p, n)20Na reaction. A new β-delayed α decay with α energy of 5 896 ± 6 keV and relative intensity of 0. 002 4 ± 0. 000 3 was discovered. At the same time the 16O recoiling in β+-delayed α decay of 20Na was observed in experiment for the first time. From these, it is inferred that a β-delayed low energy α decay of 20Na with energy of-780 keV and relative intensity of -1.4 was mixed in 16O recoiling. In 16O recoiling and the low energy α decay, the energy loss for low energy charged particles through matter was discussed in detail. At last, two methods for discriminating the β-delayed low energy α decay of 20Na were proposed.
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subjects	beta-delayed decay energy loss nuclear particle recoil
title	Decay study of 20Na and its beta-delayed 16O recoiling
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