Measurement of Quenching Factor for Nuclear Recoils in CsI(Tl) Crystal

YUE Qian; LI Jin; LIU Yan; LI Hao-Bin; WONG H; WONAG M

Chinese Physics C> 2002, Vol. 26> Issue(8) : 855-860

Measurement of Quenching Factor for Nuclear Recoils in CsI(Tl) Crystal

Institute of High Energy Physics, CAS, Beijing 1000392 Institute of Physics, Academia Sinica, Taipei 115293 Department of Physics, Taiwan University, Taipei 10600

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Abstract：
Detection of dark matter using CsI(Tl) scintillating crystal as the detector has gathered more and more interests. In this paper, the quenching factor of nuclear recoils induced by incident neutron beam was measured based on Pulse Shape Discrimination (PSD) method to identify events of nuclear recoils from background. It is shown that the quenching factor increases with the decreased recoil energy in the range of 7 keV to 132 keV. This result shows the great advantage of CsI(Tl) crystal detector in detecting of dark matter.

References

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YUE Qian, LI Jin, LIU Yan, LI Hao-Bin, WONG H and WONAG M. Measurement of Quenching Factor for Nuclear Recoils in CsI(Tl) Crystal[J]. Chinese Physics C, 2002, 26(8): 855-860.

YUE Qian, LI Jin, LIU Yan, LI Hao-Bin, WONG H and WONAG M. Measurement of Quenching Factor for Nuclear Recoils in CsI(Tl) Crystal[J]. Chinese Physics C, 2002, 26(8): 855-860. shu

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Received: 2001-11-07
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of Quenching Factor for Nuclear Recoils in CsI(Tl) Crystal

Corresponding author: YUE Qian,

Institute of High Energy Physics, CAS, Beijing 1000392 Institute of Physics, Academia Sinica, Taipei 115293 Department of Physics, Taiwan University, Taipei 10600

Received Date: 2001-11-07
Accepted Date: 1900-01-01
Available Online: 2002-08-05

Abstract: Detection of dark matter using CsI(Tl) scintillating crystal as the detector has gathered more and more interests. In this paper, the quenching factor of nuclear recoils induced by incident neutron beam was measured based on Pulse Shape Discrimination (PSD) method to identify events of nuclear recoils from background. It is shown that the quenching factor increases with the decreased recoil energy in the range of 7 keV to 132 keV. This result shows the great advantage of CsI(Tl) crystal detector in detecting of dark matter.