Chinese Physics C > 2003, Vol. 27 > Issue(10): 884-887

Study of Level Structure in¹⁴⁶Tb

Institue of Modern Physics,CAS,Lanzhou 730000,China2 Japan Atomic Energy Research Institute,Tokai,Ibaraki 319-1195,Japan3 Chiba University,Inage-ku,Chiba 263-8512,Japan4 Chiba Institute of Technology,Narashino,Chiba 275-0023,Japan

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Abstract：
The level structure of high-spin states of doubly odd nucleus ^l46Tb has been studied via the ¹¹⁸Sn ( ³²S, 1p3n) Tb reaction using techniques of in-beam y-ray spectroscopy. Measurements of r-ray excitation functions, y-ray anisotropies, X-r and r-r-t coincidences were performed with 12 BGO(AC)HPGe detectors. Based on the gated spectra, r-r coincidence relationships, intensity balances and cross-over transitions, the level scheme in ¹⁴⁶Tb has been extended up to an excitation energy of 8390 keV, and 41 new 7-rays are added into the level scheme. The spins for the new established levels have been assigned according to the results of the measured 7-ray anisotropies. The levels in ¹⁴⁶Tb are interpreted qualitatively by coupling a h _11/2proton to a h _11/2neutron hole and h _11/2υ h11/2 ^－1to the excited states in ¹⁴⁶Gd core.

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XIE Cheng-Ying, ZHOU Xiao-Hong, ZHENG Yong, ZHANG Yu-Hu, LIU Zhong, PAN Qiang-Yan and GAN Zai-Guo. Study of Level Structure in ¹⁴⁶Tb[J]. Chinese Physics C, 2003, 27(10): 884-887.

XIE Cheng-Ying, ZHOU Xiao-Hong, ZHENG Yong, ZHANG Yu-Hu, LIU Zhong, PAN Qiang-Yan and GAN Zai-Guo. Study of Level Structure in ¹⁴⁶Tb[J]. Chinese Physics C, 2003, 27(10): 884-887. shu

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Received: 2003-01-07
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

Study of Level Structure in¹⁴⁶Tb

Corresponding author:ZHOU Xiao-Hong,

Institue of Modern Physics,CAS,Lanzhou 730000,China2 Japan Atomic Energy Research Institute,Tokai,Ibaraki 319-1195,Japan3 Chiba University,Inage-ku,Chiba 263-8512,Japan4 Chiba Institute of Technology,Narashino,Chiba 275-0023,Japan

Received Date:2003-01-07

Accepted Date:1900-01-01

Available Online:2003-10-05

Abstract:The level structure of high-spin states of doubly odd nucleus^l46Tb has been studied via the¹¹⁸Sn (³²S, 1p3n) Tb reaction using techniques of in-beam y-ray spectroscopy. Measurements of r-ray excitation functions, y-ray anisotropies, X-r and r-r-t coincidences were performed with 12 BGO(AC)HPGe detectors. Based on the gated spectra, r-r coincidence relationships, intensity balances and cross-over transitions, the level scheme in¹⁴⁶Tb has been extended up to an excitation energy of 8390 keV, and 41 new 7-rays are added into the level scheme. The spins for the new established levels have been assigned according to the results of the measured 7-ray anisotropies. The levels in¹⁴⁶Tb are interpreted qualitatively by coupling a h_11/2proton to a h_11/2neutron hole and h_11/2υ h11/2^－1to the excited states in¹⁴⁶Gd core.

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Study of Level Structure in¹⁴⁶Tb

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