Lanthanum halide scintillators: Properties and applications

Iltis, Alain; Mayhugh, M. R.; Menge, P.; Rozsa, C. M.; Sellès, Olivier; Solovyev, V. G.

doi:10.1016/j.nima.2006.02.192

Cited by 136 publications

(57 citation statements)

References 6 publications

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“…Published scintillation properties for these scintillators are listed in Table I. [18][19][20][21][22][23][24][25] As shown in Figure 2, the structure of the GSO:Ce scintillators is Φ 0. respectively. The widest flat face of the scintillators was connected to the PMT photocathode using optical grease (BC630, Saint-Gobain).…”

Section: Scintillation Detectorsmentioning

confidence: 99%

“…Cerenkov photons produced in each wavelength were obtained by the theoretical formula which is a function of refractive index of the material and charged particle energy. Scintillation properties of GSO:Ce (Ce 0.4, 1.0, 1.5 mol%), [18][19][20] LaBr 3 :Ce, [21][22][23] and BGO 24,25 scintillators were reproduced from published data. The envelope function with f(t) = exp(−t/τ D ) and g(t) = (1 − exp(−t/τ R )) (τ D and τ R are decay and rise time constant, respectively) was used for the emission decay curve in the Geant4.9.5 Monte Carlo code.…”

Section: Optical Tracking Simulationmentioning

confidence: 99%

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Signal pulse emulation for scintillation detectors using Geant4 Monte Carlo with light tracking simulation

Ogawara

Ishikawa

2016

Review of Scientific Instruments

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The anode pulse of a photomultiplier tube (PMT) coupled with a scintillator is used for pulse shape discrimination (PSD) analysis. We have developed a novel emulation technique for the PMT anode pulse based on optical photon transport and a PMT response function. The photon transport was calculated using Geant4 Monte Carlo code and the response function with a BC408 organic scintillator. The obtained percentage RMS value of the difference between the measured and simulated pulse with suitable scintillation properties using GSO:Ce (0.4, 1.0, 1.5 mol%), LaBr3:Ce and BGO scintillators were 2.41%, 2.58%, 2.16%, 2.01%, and 3.32%, respectively. The proposed technique demonstrates high reproducibility of the measured pulse and can be applied to simulation studies of various radiation measurements

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Section: Scintillation Detectorsmentioning

confidence: 99%

Section: Optical Tracking Simulationmentioning

confidence: 99%

Signal pulse emulation for scintillation detectors using Geant4 Monte Carlo with light tracking simulation

Ogawara

Ishikawa

2016

Review of Scientific Instruments

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“…Its excellent timing properties (down to 100 ps in optimal conditions [2][3][4]), temperature stability [5,6] and high energy resolution for a scintillator (3% at 662 keV [7,8]), which is dominated by statistical contributions [9], have made LaBr 3 :Ce the material of choice for many nuclear physics experiments including γ-ray spectroscopy [10,11], medical imaging [12,13] or industrial applications [14,15]. The high light yield (165% of that of NaI) and the very short scintillation light decay constant (between 20 and 30 ns [5,6]) pose LaBr 3 :Ce as a well suited candidate material to allow γ-ray spectroscopy at very high count rates.…”

Section: Introductionmentioning

confidence: 99%

“…However, the investigation in [2] does not include the study of efficiency and resolution -the key properties for γ-ray spectroscopy in nuclear physics experiments -when increasing the count rate in the LaBr 3 :Ce detector.…”

Section: Introductionmentioning

confidence: 99%

High count rate spectroscopy with LaBr3:Ce scintillation detectors

Löher

Savran

Fiori

et al. 2012

Nuclear Instruments and Methods in Physics Research Section A:

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The applicability of LaBr 3 :Ce detectors for high count rate γ-ray spectroscopy is investigated. A 3"x3" LaBr 3 :Ce detector is used in a test setup with radioactive sources to study the dependence of energy resolution and photo peak efficiency on the overall count rate in the detector. Digitized traces were recorded using a 500 MHz FADC and analysed with digital signal processing methods. Good performance is obtained using standard techniques up to about 500 kHz counting rate. A pile-up correction method is applied to the data in order to further improve the capabilities at even higher rates with a focus on recovering the losses in efficiency due to signal pile-up. It is shown, that γ-ray spectroscopy can be performed with only moderate lossen in efficiency and high resolution at count rates even above 1 MHz and that the performance can be enhanced in the region between 500 kHz and 10 MHz by using the applied pile-up correction techniques.

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“…Faster or higher light output scintillators provide more photons per unit time in the rising edge of the signal pulse [1]. Also, higher quantum efficiency photosensors produce more photoelectrons from a given number of incident photons [2,3].…”

Section: Introductionmentioning

confidence: 99%

A way to improve timing resolution of SSPM: Pulse Shape

Kim¹

2010

Proceedings of International Workshop on New Photon Detectors — PoS(PD09)

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Pulse shape, dark counts, photon-detection efficiency, cross talks were identified as critical factors affecting timing resolution after an extensive measurement of solid-state photomultipliers (SSPM) for time-of-flight PET. Among those factors, pulse shape has been investigated through a SPICE simulation, and the measurement of single photoelectron and 511keV gamma ray pulses. First, we showed that, due to the long recovery tail in a single photon pulse, the risetime of 511keV gamma ray pulse from LYSO/MPPC is much slower than the one of PMT. Second, we showed that the parasitic quenching capacitance of the quenching resistor could play an important role in supplying a quick charge in the avalanche process and improve the single photon pulse shape. Third, by changing the parasitic quenching capacitance, we showed that it could be used to improve the risetime of 511keV gamma ray pulse that is directly related to the timing performance of SSPM.

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Lanthanum halide scintillators: Properties and applications

Cited by 136 publications

References 6 publications

Signal pulse emulation for scintillation detectors using Geant4 Monte Carlo with light tracking simulation

Signal pulse emulation for scintillation detectors using Geant4 Monte Carlo with light tracking simulation

High count rate spectroscopy with LaBr3:Ce scintillation detectors

A way to improve timing resolution of SSPM: Pulse Shape

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