Fast scintillation timing detector using proportional-mode avalanche photodiode for nuclear resonant scattering experiments in high-energy synchrotron X-ray region

Inoue, Kentaro; Kishimoto, Shunji

doi:10.1016/j.nima.2015.10.035

Cited by 8 publications

(2 citation statements)

References 14 publications

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“…We note that further enhancement of counting rates will be achieved by the combination of this system and a detector for high-energy X-rays to detect the directly scattered X-rays, because the probability of direct scattering is more than seven times higher than that of internal conversion in 61 Ni. The detector for high energy X-rays continues to be improved 29 . Another approach to improve the efficiency is to shorten the distance between the scatterer and detector.…”

Section: Resultsmentioning

confidence: 99%

61Ni synchrotron radiation-based Mössbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

Masuda

Kobayashi

Kitao

et al. 2016

Sci Rep

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We measured the synchrotron-radiation (SR)-based Mössbauer spectra of Ni-based nanoparticles with a hexagonal structure that were synthesised by chemical reduction. To obtain Mössbauer spectra of the nanoparticles without 61Ni enrichment, we developed a measurement system for 61Ni SR-based Mössbauer absorption spectroscopy without X-ray windows between the 61Ni84V16 standard energy alloy and detector. The counting rate of the 61Ni nuclear resonant scattering in the system was enhanced by the detection of internal conversion electrons and the close proximity between the energy standard and the detector. The spectrum measured at 4 K revealed the internal magnetic field of the nanoparticles was 3.4 ± 0.9 T, corresponding to a Ni atomic magnetic moment of 0.3 Bohr magneton. This differs from the value of Ni3C and the theoretically predicted value of hexagonal-close-packed (hcp)-Ni and suggested the nanoparticle possessed intermediate carbon content between hcp-Ni and Ni3C of approximately 10 atomic % of Ni. The improved 61Ni Mössbauer absorption measurement system is also applicable to various Ni materials without 61Ni enrichment, such as Ni hydride nanoparticles.

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Section: Resultsmentioning

confidence: 99%

61Ni synchrotron radiation-based Mössbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

Masuda

Kobayashi

Kitao

et al. 2016

Sci Rep

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“…We have evaluated the performance of plastic scintillators equipped with EJ256 and a photomultiplier tube 14) and a proportional mode silicon APD. 15,16) In the previous study, 17) the detection efficiency of the Bi doped plastic scintillator was evaluated. However, loaded heavy metals form organometallic complexes, which greatly affect the yield of scintillation light.…”

Section: Introductionmentioning

confidence: 99%

X-ray detection properties of plastic scintillators containing surface-modified Bi₂O₃nanoparticles

Hiyama

Noguchi

Koshimizu

et al. 2018

Jpn. J. Appl. Phys.

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Plastic scintillators containing Bi 2 O 3 nanoparticles (NPs) were developed as detectors for X-ray synchrotron radiation. A hydrothermal method was used to synthesize the NPs that had average particle sizes of less than 10 nm. Higher NP concentration led to a higher detection efficiency at 67.4 keV. The light yield of the scintillator containing 5 wt % Bi 2 O 3 NPs was comparable with or higher than that of the commercially available plastic scintillator, EJ 256. The time resolution of the developed scintillation detector equipped with each sample scintillator was approximately 0.6 ns. Dispersion of nanoparticles within plastic scintillators is generally applicable and has wide application as a method for preparation of plastic scintillators for detecting X-ray synchrotron radiation.

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Timing Measurements

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Signal Processing for Radiation Detectors

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Fast scintillation timing detector using proportional-mode avalanche photodiode for nuclear resonant scattering experiments in high-energy synchrotron X-ray region

Cited by 8 publications

References 14 publications

61Ni synchrotron radiation-based Mössbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

61Ni synchrotron radiation-based Mössbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

X-ray detection properties of plastic scintillators containing surface-modified Bi₂O₃nanoparticles

Timing Measurements

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Fast scintillation timing detector using proportional-mode avalanche photodiode for nuclear resonant scattering experiments in high-energy synchrotron X-ray region

Cited by 8 publications

References 14 publications

61Ni synchrotron radiation-based Mössbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

61Ni synchrotron radiation-based Mössbauer spectroscopy of nickel-based nanoparticles with hexagonal structure

X-ray detection properties of plastic scintillators containing surface-modified Bi2O3nanoparticles

Timing Measurements

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X-ray detection properties of plastic scintillators containing surface-modified Bi₂O₃nanoparticles