Nanocomposite scintillators for radiation detection and nuclear spectroscopy

McKigney, Edward A.; Sesto, Rico E. Del; Jacobsohn, L.G.; Santi, Peter A.; Muenchausen, R. E.; Ott, Kevin C.; McCleskey, T. Mark; Bennett, B. L.; Smith, James F.; Cooke, D. W.

doi:10.1016/j.nima.2007.04.004

Cited by 105 publications

(49 citation statements)

References 5 publications

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“…The optical attenuation of a nanocomposite sample is a function of the particle size, volume ratio of particle to matrix and refractive indices of the particle and the matrix [6]. In order to obtain high transparency, a good index matching between the particle and the matrix is required and a proper polymeric matrix needs to be selected.…”

Section: Resultsmentioning

confidence: 99%

“…Scintillation detectors made from nanocomposites embedded with nanophosphors may be of advantage for gamma ray detection [5,6]. Use of these nanomaterials may bypass the difficulties of preparing large pure crystals to assure effective transparency for the generated light.…”

Section: Introductionmentioning

confidence: 99%

“…The challenge is to fabricate a highly transparent nanocomposite. Although the small optical scattering from nanoparticles with diameters less than 50 nm made it possible to synthesize transparent nanocomposites [6], a highly homogeneously dispersed and/or refractive index matched nanocomposite system is required, especially for nanocomposite scintillators with extremely high nanoparticle loading necessary for gamma ray absorption efficiency and stopping power.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of BaF2:Ce nanophosphor and epoxy encapsulated transparent nanocomposite

Kang¹,

Barta²,

Nadler³

et al. 2011

Journal of Luminescence

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis of BaF2:Ce nanophosphor and epoxy encapsulated transparent nanocomposite

Kang¹,

Barta²,

Nadler³

et al. 2011

Journal of Luminescence

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“…Further improvement of the light output is concerned with increasing light emission efficiency of the scintillator using special phosphorescent dopants [19,20].…”

Section: Development Feasibilitymentioning

confidence: 99%

Feasibility of a large area detector for fast neutron imaging

Bogolubov¹,

Koshelev²,

Mikerov³

et al. 2012

J. Inst.

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Proton beam characterisation of a prototype thin-tile plastic scintillator detector with SiPM readout for use in fastneutron tracker R Preston, J Jakubek, D Prokopovich et al. ABSTRACT: The paper analyses the factors affecting the detection efficiency and the spatial resolution of the luminescent detectors intended for fast neutron imaging. An analytical approach has been used for this purpose. A design of the large area detector based on the application of a matrix screen and a set of crossed wavelength shifting fibers (WLS) for reading out the scintillation signal has been suggested. The spatial resolution of the detector depends on the cross section of the matrix cell. The detection efficiency of the detector is sufficiently high and can amount to about 25% for the screen made of polyvinyl toluene in the case of 14 MeV neutrons.

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“…As the size of a particle is reduced to near the exciton Bohr diameter, its electronic structure and optical properties undergo drastic changes [16][17][18]. Scintillating nanoparticles have been shown in research to possess a three times higher luminescence efficiency and doubled energy resolution compared to those of bulk crystal scintillators [19,20]. For these Ce 3 + doped scintillators, the emission in the UV-blue range has some limitations for radiation detection as UV-blue emissions are absorbed strongly by water and polymers, which limit their applications.…”

Section: Introductionmentioning

confidence: 99%