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相关论文: Temperature behavior of NaI (Tl) scintillation det…

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The scintillation light output of a pure and a Thallium doped Sodium Iodide (NaI) crystal under irradiation with 5.486MeV \alpha -particles has been measured over a temperature range from 1.7K to 300K. Estimates of the decay time constant…

仪器与探测器 · 物理学 2012-12-06 C. Sailer , B. Lubsandorzhiev , C. Strandhagen , J. Jochum

We measure the time dependence of the scintillator light-emission pulses in NaI(Tl) crystals at different temperatures, after activation by gamma rays. We confirm that there are two main nonexponential components to the time decay and find…

仪器与探测器 · 物理学 2008-11-26 B. S. Alexandrov , K. D. Ianakiev , P. B. Littlewood

Scintillation characteristics of a thallium doped sodium iodide (NaI(Tl)) crystal with a dimension of 0.6 x 0.6 x 2 cm3 are studied by attaching a silicon photomultiplier (SiPM) direct to the crystal over a temperature range from 93 to 300…

仪器与探测器 · 物理学 2022-03-02 H. Y. Lee , J. A. Jeon , K. W. Kim , W. K. Kim , H. S. Lee , M. H. Lee

We present the responses of a NaI(Tl) crystal in terms of the light yield and pulse shape characteristics of nuclear recoil events at two different temperatures: 22 C (room temperature) and -35 C (low temperature). The light yield is…

仪器与探测器 · 物理学 2022-04-27 S. H. Lee , G. S. Kim , H. J. Kim , K. W. Kim , J. Y. Lee , H. S. Lee

The scintillation mechanism in NaI:Tl crystals produces different pulse shapes that are dependent on the incoming particle type. The time distribution of scintillation light from nuclear recoil events decays faster than for electron recoil…

Application of NaI(Tl) detectors in the search for galactic dark matter particles through their elastic scattering off the target nuclei is well motivated because of the long standing DAMA/LIBRA highly significant positive result on annual…

Thallium-doped sodium iodide (NaI(Tl)) crystals are widely used in radiation detection applications, from gamma-ray spectroscopy to particle dark matter searches. However, if the crystal is exposed to relative humidity of even a few…

仪器与探测器 · 物理学 2022-11-16 Jinyoung Kim , Yujin Lee , Byoung-cheol Koh , Chang Hyon Ha , Byung Ju Park , In Soo Lee , Hyun Su Lee

NaI(Tl) crystals are used as particle detectors in a variety of rare-event search experiments because of their superb light-emission quality. The crystal light yield is generally high, above 10 photoelectrons per keV, and its emission…

仪器与探测器 · 物理学 2020-08-13 J. J. Choi , B. J. Park , C. Ha , K. W. Kim , S. K. Kim , Y. D. Kim , Y. J. Ko , H. S. Lee , S. H. Lee , S. L. Olsen

Scintillating NaI(Tl) crystals are used for various rare decay experiments, such as dark matter searches. The hygroscopicity of NaI(Tl) crystal makes the construction of crystal detectors in these experiments challenging and requires a…

天体物理仪器与方法 · 物理学 2020-01-08 J. Y. Lee , G. Adhikari , C. Ha , H. J. Kim , N. Y. Kim , S. K. Kim , Y. D. Kim , H. S. Lee

We demonstrate the linearity and stability of a gamma-ray scintillation detector comprised of a NaI(Tl) crystal and a scientific-grade CMOS camera. After calibration, this detector exhibits excellent linearity more than three decades of…

仪器与探测器 · 物理学 2017-07-13 Scott D. Bergeson , Michael J. Ware , Jeremy Hawk

We present preliminary results of measurements of the quenching factor for Na recoils in NaI(Tl) at room temperature, made at a dedicated neutron facility at the University of Sheffield. Measurements have been performed with a 2.45 MeV…

仪器与探测器 · 物理学 2016-11-09 H. Chagani , P. Majewski , E. J. Daw , V. A. Kudryavtsev , N. J. C. Spooner

We studied the temperature dependence of the light yield of the linear alkyl benzene (LAB)-based and mesitylene-based liquid scintillators. The light yield increases by 23% for both liquid scintillators when the temperature is lowered from…

仪器与探测器 · 物理学 2014-02-28 Xia DongMei , Yu BoXiang , Li XiaoBo , Sun XiLei , Ding YaYun , Zhou Li , Cao Jun , Hu Wei , Ye XingCheng , Chen HaiTao , Ding XueFeng , Du Bing

We report on the scintillation characterization of a 1 cm^3 CsI(Tl) crystal coupled to a 6 x 6 mm^2 SiPM read out with a custom transimpedance amplifier at cryogenic temperatures. The crystal was prepared with optical-grade surfaces and…

仪器与探测器 · 物理学 2025-11-19 M. Mirzakhani , R. Mahapatra , M. Platt

We report a study of CsI(Tl) scintillator to assess its applicability in experiments to search for dark matter particles. Measurements of the mean scintillation pulse shapes due to nuclear and electron recoils have been performed. We find…

Thallium-doped sodium iodide (NaI(Tl)) scintillation detectors play an important role in the field of direct dark matter (DM) searches. The DAMA/LIBRA experiment stands out for its reported observation of an annually modulating DM-like…

A thin (0.05cm) and wide area (5cmX5cm) NaI(Tl) scintillator was developed. The performance of the thin NaI(Tl) plate, energy resolution, single photoelectron energy and position sensitivity were tested. An excellent energy resolution of…

We report on the response of a high light-output NaI(Tl) crystal to nuclear recoils induced by neutrons from an Am-Be source and compare the results with the response to electron recoils produced by Compton scattered 662 keV $\gamma$-rays…

Applications that utilize scintillation detectors at low temperatures are growing in number. Many of these require materials with high light yield and a fast response. Here we report on the low-temperature characterisation of ZnSe doped…

仪器与探测器 · 物理学 2021-08-02 S. Galkin , I. Rybalka , L. Sidelnikova , A. Voloshinovskii , H. Kraus , V. Mykhaylyk

The NaI:Tl crystals were early investigated and used for wide application fields due to high light yield and crystal growth advantages. So far, the absolute light yields of NaI:Tl crystal have typically been known to be 40 ph/keV. However,…

高能物理 - 实验 · 物理学 2024-04-30 Nguyen Thanh Luan , Kim Hong Joo , Lee Hyun Su , Jin Jegal , Lam Tan Truc , Khan Arshad , Nguyen Duc Ton
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