scholarly journals CsI:Tl+,Yb2+: ultra-high light yield scintillator with reduced afterglow

CrystEngComm ◽  
2014 ◽  
Vol 16 (16) ◽  
pp. 3312-3317 ◽  
Author(s):  
Yuntao Wu ◽  
Guohao Ren ◽  
Martin Nikl ◽  
Xiaofeng Chen ◽  
Dongzhou Ding ◽  
...  
Keyword(s):  
Energy Resolution ◽  
Computer Tomography ◽  
High Speed ◽  
Light Yield ◽  
High Light ◽  
High Speed Imaging ◽  
High Light Yield ◽  
The Way

Simultaneous improvement in afterglow, light yield and energy resolution in CsI:Tl-based scintillators paves the way to its application in computer tomography and high-speed imaging.

High light yield Ce3+-doped dense scintillating glasses

2013 ◽  
Vol 581 ◽  
pp. 801-804 ◽  
Author(s):  
Qian Wang ◽  
Bin Yang ◽  
Yuepin Zhang ◽  
Haiping Xia ◽  
Tianchi Zhao ◽  
...  
Keyword(s):  
Light Yield ◽  
High Light ◽  
High Light Yield

scholarly journals Development of ultra-pure NaI(Tl) detectors for the COSINE-200 experiment

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
B. J. Park ◽  
J. J. Choi ◽  
J. S. Choe ◽  
O. Gileva ◽  
C. Ha ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Direct Detection ◽  
Light Yield ◽  
High Light ◽  
Independent Verification ◽  
High Light Yield ◽  
Assembly Technique ◽  
Modulation Signal ◽  
Standing Question ◽  
Detector Assembly

AbstractThe annual modulation signal observed by the DAMA experiment is a long-standing question in the community of dark matter direct detection. This necessitates an independent verification of its existence using the same detection technique. The COSINE-100 experiment has been operating with 106 kg of low-background NaI(Tl) detectors providing interesting checks on the DAMA signal. However, due to higher backgrounds in the NaI(Tl) crystals used in COSINE-100 relative to those used for DAMA, it was difficult to reach final conclusions. Since the start of COSINE-100 data taking in 2016, we also have initiated a program to develop ultra-pure NaI(Tl) crystals for COSINE-200, the next phase of the experiment. The program includes efforts of raw powder purification, ultra-pure NaI(Tl) crystal growth, and detector assembly techniques. After extensive research and development of NaI(Tl) crystal growth, we have successfully grown a few small-size (0.61–0.78 kg) thallium-doped crystals with high radio-purity. A high light yield has been achieved by improvements of our detector assembly technique. Here we report the ultra-pure NaI(Tl) detector developments at the Institute for Basic Science, Korea. The technique developed here will be applied to the production of NaI(Tl) detectors for the COSINE-200 experiment.

scholarly journals Inorganic, Organic, and Perovskite Halides with Nanotechnology for High–Light Yield X- and γ-ray Scintillators

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 88 ◽  
Author(s):  
Francesco Maddalena ◽  
Liliana Tjahjana ◽  
Aozhen Xie ◽  
Arramel ◽  
Shuwen Zeng ◽  
...  
Keyword(s):  
High Energy Physics ◽  
Low Cost ◽  
Light Yield ◽  
Fast Response ◽  
High Energy ◽  
High Light ◽  
Scintillation Light ◽  
High Light Yield ◽  
Halide Perovskites ◽  
Lead Halide

Trends in scintillators that are used in many applications, such as medical imaging, security, oil-logging, high energy physics and non-destructive inspections are reviewed. First, we address traditional inorganic and organic scintillators with respect of limitation in the scintillation light yields and lifetimes. The combination of high–light yield and fast response can be found in Ce 3 + , Pr 3 + and Nd 3 + lanthanide-doped scintillators while the maximum light yield conversion of 100,000 photons/MeV can be found in Eu 3 + doped SrI 2 . However, the fabrication of those lanthanide-doped scintillators is inefficient and expensive as it requires high-temperature furnaces. A self-grown single crystal using solution processes is already introduced in perovskite photovoltaic technology and it can be the key for low-cost scintillators. A novel class of materials in scintillation includes lead halide perovskites. These materials were explored decades ago due to the large X-ray absorption cross section. However, lately lead halide perovskites have become a focus of interest due to recently reported very high photoluminescence quantum yield and light yield conversion at low temperatures. In principle, 150,000–300,000 photons/MeV light yields can be proportional to the small energy bandgap of these materials, which is below 2 eV. Finally, we discuss the extraction efficiency improvements through the fabrication of the nanostructure in scintillators, which can be implemented in perovskite materials. The recent technology involving quantum dots and nanocrystals may also improve light conversion in perovskite scintillators.

Theoretical investigations on the high light yield of the LuI3:Ce scintillator

2009 ◽  
Vol 129 (12) ◽  
pp. 1555-1559 ◽  
Author(s):  
A.N. Vasil’ev ◽  
I.M. Iskandarova ◽  
A.V. Scherbinin ◽  
I.A. Markov ◽  
A.A. Bagatur’yants ◽  
...  
Keyword(s):  
Light Yield ◽  
High Light ◽  
Theoretical Investigations ◽  
High Light Yield

Scintillation properties of LuI/sub 3/:Ce/sup 3+/-high light yield scintillators

2005 ◽  
Vol 52 (4) ◽  
pp. 1114-1118 ◽  
Author(s):  
M.D. Birowosuto ◽  
P. Dorenbos ◽  
C.W.E. van Eijk ◽  
K.W. Kramer ◽  
H.U. Gudel
Keyword(s):  
Light Yield ◽  
High Light ◽  
High Light Yield

Lead tungstate crystals of high light yield for medical imaging

2002 ◽  
Author(s):  
Rihua Mao ◽  
Xiangdong Qu ◽  
Guohao Ren ◽  
Dingzhong Shen ◽  
S. Stoll ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Light Yield ◽  
High Light ◽  
Lead Tungstate ◽  
High Light Yield
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