Status of ULE-HPGe Detector Experiment for Dark Matter Search

LI Xin; YUE Qian; LI Yuan-Jing; LI Jin; HE Dao; KIM S; KWAK J; ANG H

Chinese Physics C> 2007, Vol. 31> Issue(6) : 564-569

Status of ULE-HPGe Detector Experiment for Dark Matter Search

Department of Engineering Physics, Tsinghua University, Beijing 100084, China2 School of Physics, Seoul National University, Seoul 151-742, Korea3 Institute of Physics, AS, Taipei 11529, China

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Abstract：
An Ultra Low Energy HPGe (ULE-HPGe) detector, with CsI (Tl) active shielding, is applied to the direct detection experiment for weakly interacting massive particles (WIMP), and located in Korea. The setups for the whole system and the calibration have been completed and more than half a year's background data have been accumulated. Some external neutron and gamma source experiments were carried out to study the origin of the background. The analysis and preliminary results are shown, and an attractive future is also provided.

References

[1]

. Comellia D, Pietroni M, Riottob A. Physics Letters, 2003,B571: 115-120; Gascon J. Nuclear Instruments andMethods in Physics Research, 2004, A520: 96-100; Gon-dolo P, Gelmini G. Physical Review, 2005, D71: 1235202. Kim S K et al. Nuclear Physics, 2003, B124(Proc. Suppl.):217-220; WANG H G. Physics Reports, 1998, 307: 263-2673. YUE Qian et al. HEP NP, 2004, 28(8): 877-880(in Chinese)(岳骞等.高能物理与核物理,2004, 28(8): 877-880)4. LIU Yan, CHEN C P, LI H B et al. NIM, 2002, A482:125-143; YUE Qian et al. HEP NP, 2002, 26(7): 728-734(in Chinese)(岳骞等.高能物理与核物理,2002, 26(7): 728-734)

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LI Xin, YUE Qian, LI Yuan-Jing, LI Jin, HE Dao, KIM S, KWAK J and ANG H. Status of ULE-HPGe Detector Experiment for Dark Matter Search[J]. Chinese Physics C, 2007, 31(6): 564-569.

LI Xin, YUE Qian, LI Yuan-Jing, LI Jin, HE Dao, KIM S, KWAK J and ANG H. Status of ULE-HPGe Detector Experiment for Dark Matter Search[J]. Chinese Physics C, 2007, 31(6): 564-569. shu

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Received: 2006-08-16
Revised: 2006-10-21

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沈阳化工大学材料科学与工程学院沈阳 110142

Status of ULE-HPGe Detector Experiment for Dark Matter Search

Corresponding author: YUE Qian,

Department of Engineering Physics, Tsinghua University, Beijing 100084, China2 School of Physics, Seoul National University, Seoul 151-742, Korea3 Institute of Physics, AS, Taipei 11529, China

Received Date: 2006-08-16
Accepted Date: 2006-10-21
Available Online: 2007-06-05

Abstract: An Ultra Low Energy HPGe (ULE-HPGe) detector, with CsI (Tl) active shielding, is applied to the direct detection experiment for weakly interacting massive particles (WIMP), and located in Korea. The setups for the whole system and the calibration have been completed and more than half a year's background data have been accumulated. Some external neutron and gamma source experiments were carried out to study the origin of the background. The analysis and preliminary results are shown, and an attractive future is also provided.