Absolute Light Yield Determination for LGSO:Ce, CWO, ZnSe:Al, and GSO:Ce Crystals

Grinyov, B.; Ryzhikov, V. D.; Sidletskiy, O.; Onyshchenko, G. M.; Galkin, S. N.; Ivanov, Alexander; Тарасов, В. А.; Zelenskaya, O. V.; Kurtsev, D.; Piven, L. A.; Zenya, I.

doi:10.1109/tns.2010.2047732

Cited by 13 publications

(19 citation statements)

References 12 publications

(12 reference statements)

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“…In this case, we used as a reference an Lu 2(xÀ1) Y 2x SiO 4 -Ce (LYSO-Ce) scintillator, known for its high light yield (34 000 ph/MeV) and fast decay time (33 ns), both changing only insignificantly with cooling. 37,38 This scintillator emits in the same spectral range as Ga 2 O 3 , which is beneficial for reducing the errors arising from the uncertainty of calculating the emission-weighted detector efficiency e k : 39,40 This parameter accounts for the difference in the spectral sensitivity of the detector and was calculated from the measured X-ray luminescence spectra of the crystals and the known quantum efficiency of the 9124A photomultiplier.…”

Section: Figmentioning

confidence: 99%

Low temperature scintillation properties of Ga2O3

Mikhailik

Kraus

Kapustianyk

et al. 2019

Applied Physics Letters

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Gallium oxide has recently been identified as a promising scintillator. To assess its potential as a detector material for ionizing radiation at low temperatures, we measured the luminescence and scintillation properties of an undoped Ga 2 O 3 crystal over the 7-295 K temperature range. The emission of the crystal is due to the radiative decay of self-trapped excitons and donor-acceptor pairs and peaks at a wavelength of 380 nm. The scintillation light output of the undoped Ga 2 O 3 increases with a decrease in temperature, reaching a maximum value of 19 300 6 2200 ph/MeV at 50 K. The measured luminescence kinetics has a recombination character with specific decay time (s 0.1 ) increasing from 1 to 1.8 ls at cooling. Since radiative decay in the crystal competes with nonradiative processes, material optimization could lead to the scintillator achieving a yield of 40800 ph/MeV, a figure considered to be an upper limit.

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Section: Figmentioning

confidence: 99%

Low temperature scintillation properties of Ga2O3

Mikhailik

Kraus

Kapustianyk

et al. 2019

Applied Physics Letters

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“…The absolute light yield of the composites obtained was determined by calculating the number of scintillation photons from number of photoelectrons collected on the anode of the PMT [14]. the light collection coefficient in scintillators was determined by means of mathematical Monte Carlo simulations [15], taking into account the optical properties of the …”

Section: Resultsmentioning

confidence: 99%

Development of Nanocomposite Alpha-Detectors Based on Silica Matrices and Organic Scintillators

Seminko

Masalov

Viagin

et al. 2014

Nanoscience Advances in CBRN Agents Detection, Information and Energy Security

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New materials based on highly-porous SiO 2 matrices with incorporated molecules of organic scintillators (POPOP, PPO) were fabricated. The composite scintillators are characterized by decay times in the nanosecond range, a high transparency in the visible region (about 70 %) and an intensive photoluminescence. At excitation by 5.46 MeV alpha particles the light yield of SiO 2 (POPOP, PPO) was equal to 4,400-5,100 photon/MeV, the resolution was 27-32 %.

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“…Owing to the high detection efficiency of X rays with relatively low energies (<70 keV), this detector can be used not only in engineering introscopy (cus (3,4) LGSO(Ce) scintillators on the voltage at the X ray tube obtained at a constant current of 0.395 mA (1,3) in the absence and (2,4) presence of a reflector between the elements.…”

Section: Discussionmentioning

confidence: 99%

“…LGSO(Ce) was chosen as the HE scintillator [4]. It refers to the class of oxide scintillators that are acti vated with rare earth elements and is applied in med ical diagnostics and experiments in HE physics.…”

Section: Introductionmentioning

confidence: 99%

“…A difference between the effective X ray absorption thicknesses for the single crystal and disperse samples is due to the fact that, despite the high degree of filling of the immersion medium with the scintillator powder (80 vol %), the structure of a composite element remains discrete. The value of the effective thickness of an element, which is smaller than the expected valueEnergy dependences of the X ray absorption (for a voltage at the tube of 70 kV and a current of 86 µA) by the detector elements: (1) initial X ray spectrum; (2) photodiode 1; (3) ZnSe(Al);(4) LGSO(Ce) scintillator; and (5) photodiode 2.…”

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A Dual-energy X-ray detector on the basis of ZnSe(Al) and LGSO(Ce) composite scintillators

et al. 2013

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The results of tests of an experimental prototype of a two energy scintillation detector, which is based on a two layer composite system of fine crystalline ZnSe(Al) and LGSO(Ce) scintillators, are pre sented and its properties are determined. The X rays spectra for each element of the detector were obtained. The analysis of these spectra allowed determination of the energy efficiency of the X ray absorption for each element of the detector in an energy range of 30-70 keV. The dependences of proper signals from photode tectors under the action of X rays (the tube voltage varied from 40 to 90 kV) were restored. The corresponding X ray spectra are presented as well. The dependences of scintillation signals from disperse ZnSe(Al) andLGSO(Ce) scintillators on the X ray tube voltage are presented (the voltage varied from 40 to 70 keV). Due to the high registration efficiency of relatively low energy X rays (up to 70 keV), this detector can be used not only in engineering introscopy (customs baggage control, mail, cargo container, and vehicle checks, etc.), but also in various fields of medical radiology.A DUAL ENERGY X RAY DETECTOR ON THE BASIS 443 toms baggage control, mail, cargo container, and vehicle checks, nondestructive testing of units and mechanisms, etc.), but also in various fields of medical radiology.

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Absolute Light Yield Determination for LGSO:Ce, CWO, ZnSe:Al, and GSO:Ce Crystals

Cited by 13 publications

References 12 publications

Low temperature scintillation properties of Ga2O3

Low temperature scintillation properties of Ga2O3

Development of Nanocomposite Alpha-Detectors Based on Silica Matrices and Organic Scintillators

A Dual-energy X-ray detector on the basis of ZnSe(Al) and LGSO(Ce) composite scintillators

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