Chinese Physics C > 2010, Vol. 34 > Issue(2): 177-181 DOI: 10.1088/1674-1137/34/2/004

Measurement of neutron cross sections and resonance parameters of¹⁶⁹Tmbelow 100 eV

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The neutron total cross-sections of thulium (¹⁶⁹Tm) were measured in the neutron energy region from 0.01 eV to 100 eV by using the time-of-flight method at the Pohang Neutron Facility, which consists of an electron linac, a water-cooled tantalum target with a water moderator, and a 12 m time of flight path. Two thulium plates with different thicknesses were used for the neutron transmission measurement. The background level was determined by using a notch-filter of Co, In, and Cd sheets. The present measurement was compared with the previous ones, and a new set of resonance parameters of¹⁶⁹Tm isotope was obtained from the transmission rate by using the SAMMY code, with a comparison with the recommended parameters by Mughabghab.

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WANG Wen-Ming, LI Xia, ZHAO Zhi-Xiang, ZHOU Zu-Ying, YU Hong-Wei, WU Hai-Cheng and WEI Yi-Xiang. Measurement of neutron cross sections and resonance parameters of ¹⁶⁹Tmbelow 100 eV[J]. Chinese Physics C, 2010, 34(2): 177-181. doi: 10.1088/1674-1137/34/2/004

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Received: 2009-03-06
Revised: 2009-07-20

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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

Measurement of neutron cross sections and resonance parameters of¹⁶⁹Tmbelow 100 eV

Corresponding author:WANG Wen-Ming,

Received Date:2009-03-06

Accepted Date:2009-07-20

Available Online:2010-02-05

Abstract:

The neutron total cross-sections of thulium (¹⁶⁹Tm) were measured in the neutron energy region from 0.01 eV to 100 eV by using the time-of-flight method at the Pohang Neutron Facility, which consists of an electron linac, a water-cooled tantalum target with a water moderator, and a 12 m time of flight path. Two thulium plates with different thicknesses were used for the neutron transmission measurement. The background level was determined by using a notch-filter of Co, In, and Cd sheets. The present measurement was compared with the previous ones, and a new set of resonance parameters of¹⁶⁹Tm isotope was obtained from the transmission rate by using the SAMMY code, with a comparison with the recommended parameters by Mughabghab.

Measurement of neutron cross sections and resonance parameters of¹⁶⁹Tmbelow 100 eV

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通讯作者:陈斌, bchen63@163.com

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