Results 171 to 180 of about 2,434 (218)

Solid state radioluminescent lighting

Radiation Physics and Chemistry, 1994
Abstract We have demonstrated novel types of tritium-powered, solid-phase radioluminescent (RL) light sources. These lights include: (1) all-organic formulations comprised of polystyrene and fluorescent organic dyes; (2) polydimethylsiloxane-based systems incorporating inorganic phosphors; and (3) inorganic aerogel-based systems doped with phosphors.
C.L. Renschler, J.T. Gill, R.J. Walko, C.S. Ashley, T.J. Shepodd, S.T. Reed, G.M. Malone, L.E. Leonard, R.E. Ellefson, R.L. Clough   +9 more
openaire   +1 more source

Radioluminescence properties of decaoctahedral BaZrO3

Scripta Materialia, 2011
Radioluminescence (RL) emissions were obtained for the BaZrO3 self-assembled nanocrystals under decaoctahedral shape, if produced via microwave-assisted hydrothermal method. Trapped F centers created within the band gap are the result of order–disorder effects, which act as key factors supporting significant RL emission through a detrapping process ...
Moreira, Mario Lucio, Volanti, Diogo P., Andres, Juan, Montes, Paulo J. R., Valerio, Mario E. G., Varela, José A., Longo, Elson   +6 more
openaire   +2 more sources

Radioluminescent dosimetry of α-quartz

Radiation Measurements, 1995
The variation in the ultraviolet component of the radioluminescence intensity during X-ray excitation of α-quartz has been found to be dependent on the dose of previous ionizing irradiation. A new method of radiation dosimetry using UV radioluminescence is described.
Yu.A. Marazuev, A.B. Brik, V.Ya. Degoda
openaire   +1 more source

Radioluminescence problems for diagnostic windows

Journal of Nuclear Materials, 1995
Radioluminescence from 200 to 800 nm has been measured in UV grade sapphire at ionizing dose rates and temperatures of relevance for ITER optical diagnostic windows. The intensity has been quantified in terms of photon emission and has been found to be comparable to present day tokamak plasma emission intensities. Furthermore the light emission shows a
A. Moroño, E.R. Hodgson
openaire   +1 more source

The radioluminescence of lead chloride

Acta Physica Academiae Scientiarum Hungaricae, 1970
The cooled lead chloride which shows a blue luminescence seems in many respects, to have considerable advantages as a scintillator material. However, because of its unfavourable response and poor energy resolution, it cannot be used for gamma-spectroscopic purposes.
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Radioluminescent glass and fibers for neutron detection

Materials Horizons
Modern advances establish neutrons as vital scientific probes, enabling breakthroughs spanning high-energy physics, industrial manufacturing, materials innovation, heritage conservation, medical diagnostics, and geological prospecting.
Qiwen Pan, Yiyi Chen, Jiaxin Yang, Yuanfeng Luo, Wei Lü, Jinghua Sun, Xiaoyong Chen, Xiongjian Huang, Hongcheng Wang, Hongyang Zhao, Guoping Dong   +10 more
openaire   +2 more sources

Intraband radioluminescence of LiF crystals

Optics and Spectroscopy, 2000
Spectra of high-energy electrons are calculated in the electron-hole ionization-passive region of lithium fluoride crystals for the conditions of intense irradiation by short pulses of accelerated electrons. The yield of intraband radioluminescence of these crystals is estimated in comparison with the yield of this kind of luminescence of more ...
V. V. Tirskiĭ, E. F. Martynovich
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Radioluminescence of methylcyclohexane in the glassy state

International Journal for Radiation Physics and Chemistry, 1976
Abstract The radioluminescence of pure, frozen methylcyclohexane (MCH) has been investigated. λ-Irradiation of MCH at 77 K produces at least three negative species—trapped electrons, e - t , and two types of anions, which are formed in the reactions of electrons with radicals, R - , and with stable radiolysis products, P - .
J. Kroh, R. Leszczyński, J. Mayer
openaire   +1 more source

Radioluminescence of H2O and D2O ice

The Journal of Chemical Physics, 1975
The luminescence emitted during x-ray irradiation of H2O and D2O ice at 77 K exhibits an identical emission band peaked at 373 nm. D2O also exhibits a band peaked at 534 nm which is not seen for H2O. The 373 nm band appears to have a decay time in the range 10−4–10−3 sec, whereas the 534 nm band decays completely in less than 10−4 sec.
H. B. Steen, J. Aa. Holteng
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Radioluminescence of cyclohexane-benzene mixtures

International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry, 1988
Abstract Single-photon counting has been used to measure scintillation pulse-shapes from solutions of p -terphenyl in cyclohexane-benzene mixtures excited by β-particles: they show a marked dependence on composition and on magnetic field. The results demonstrate the role of geminate recombination of solute ions in producing excited states and throw ...
W.R.Simon Appleton, Brian Brocklehurst
openaire   +1 more source