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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 of 169Tmbelow 100 eV

  • 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 of 169Tm 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
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 shu
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Received: 2009-03-06
Revised: 2009-07-20
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Measurement of neutron cross sections and resonance parameters of 169Tmbelow 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 of 169Tm 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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