A capacitance servo control plunger for accurate lifetime measurement

WANG Jin-Long; WU Xiao-Guang; HE Chuang-Ye; LI Guang-Sheng; FAN Qi-Wen; DU Ying-Hui; WU Yi-Heng; HU Shi-Peng; ZHENG Yun; LI Cong-Bo; LI Hong-Wei; LIU Jia-Jian; LUO Peng-Wei; YAO Shun-He

doi:10.1088/1674-1137/38/3/036201

Chinese Physics C> 2014, Vol. 38> Issue(3) : 036201 DOI: 10.1088/1674-1137/38/3/036201

A capacitance servo control plunger for accurate lifetime measurement

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Abstract：
The recoil distance Doppler shift method has been widely used in the study of nuclear structure to determine the level lifetime and absolute transition probabilities. A capacitance servo control plunger based on this method has been successfully developed by the Nuclear Structure Group of the China Institute of Atomic Energy. Three microscopes were employed to check the parallelism and can therefore guarantee a delicate measurement of the distance between the target and the stopper. This new plunger made a successful performance in the test experiment and the measured lifetime of the 2⁺→0⁺ transition in ⁷⁸Kr is in agreement with the previous value.

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[1]

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WANG Jin-Long, WU Xiao-Guang, HE Chuang-Ye, LI Guang-Sheng, FAN Qi-Wen, DU Ying-Hui, WU Yi-Heng, HU Shi-Peng, ZHENG Yun, LI Cong-Bo, LI Hong-Wei, LIU Jia-Jian, LUO Peng-Wei and YAO Shun-He. A capacitance servo control plunger for accurate lifetime measurement[J]. Chinese Physics C, 2014, 38(3): 036201. doi: 10.1088/1674-1137/38/3/036201

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Received: 2013-01-31
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

A capacitance servo control plunger for accurate lifetime measurement

Corresponding author: WANG Jin-Long,

Corresponding author: WU Xiao-Guang,

Received Date: 2013-01-31

Accepted Date: 1900-01-01

Available Online: 2014-03-05

Abstract: The recoil distance Doppler shift method has been widely used in the study of nuclear structure to determine the level lifetime and absolute transition probabilities. A capacitance servo control plunger based on this method has been successfully developed by the Nuclear Structure Group of the China Institute of Atomic Energy. Three microscopes were employed to check the parallelism and can therefore guarantee a delicate measurement of the distance between the target and the stopper. This new plunger made a successful performance in the test experiment and the measured lifetime of the 2⁺→0⁺ transition in ⁷⁸Kr is in agreement with the previous value.

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A capacitance servo control plunger for accurate lifetime measurement

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