Results 201 to 210 of about 24,053 (253)

Sub-Nanosecond Plastic Scintillators

IEEE Transactions on Nuclear Science, 1977
Quenched plastic scintillators have been developed that yield much faster short decay components and greatly reduced long decay components compared to conventional plastic scintillators. The plastics are produced through the addition of selected quench agents to NE111 plastic scintillator that result in reduced total light output.
P. B. Lyons, S. E. Caldwell, L. P. Hocker, D. G. Crandall, P. A. Zagarino, J. Cheng, G. Tirsell, C. R. Hurlbut   +7 more
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Plastic scintillators containing halogens

Journal of Applied Spectroscopy, 1967
Polystyrene has been mixed with hexachlorobenzene, p-dibromobenzene, p-diiodobenzene, p-chlorostyrene, alkali halides, etc., the activating components being p-terphenyl and POPOP. Some of these scintillators can be used for dosimetry of 50–125 keV X-rays.
A. V. Chernobai, G. P. Zaplesnichenko, S. P. Vershinina, L. N. Kolesnikov   +3 more
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New heavy plastic scintillators

Instruments and Experimental Techniques, 2000
The possibility of producing, by quenching, new transparent heavy polystyrene scintillators with a light output of ∼32% of that of anthracene and with a total concentration of organometallic additives of ∼17 wt % is shown. Doping of plastic scintillators with a set of different organometallic additives improves their ability to absorb soft γ-quanta and
G. I. Britvich, V. G. Vasil’chenko, V. G. Lapshin, A. S. Solov’ev   +3 more
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Preparation of plastic scintillators

The Soviet Journal of Atomic Energy, 1960
The apparatus and the direct method for preparing plastic scintillators by thermal polymerization in enclosed metallic containers are described. (R.V.J.)
E. E. Baroni, V. M. Shoniya
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Sub-nanosecond plastic scintillators

Nuclear Instruments and Methods, 1976
Abstract An ultrafast plastic scintillator has been developed by addition of acetophenone to NE111. The resulting quenched plastic shows a fwhm of less than 600 ps.
P.B. Lyons, C.R. Hurlbut, L.P. Hocker
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Ageing of plastic scintillators

Journal of Scientific Instruments, 1962
Results are presented which show that counter resolution is reduced when the plastic phosphor is left in the scintillation counter for a period of 18 months. The deterioration of the plastic phosphor depends greatly on the method of use in the counters.
C F Barnaby, J C Barton
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Thermally stimulated optical scintillations in preheated plastic scintillators

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1992
Abstract PVT-based plastic scintillators, irrespective of their radiation history, are found to exhibit thermally stimulated optical scintillations in the temperature interval 40–80°C following a preheat to 200°C or above and cooling to RT. Maximum scintillation activity occurs near 65°C, which is the glass transition temperature T g of the ...
M.S. Jahan, C. Cox, D.R. Ermer, D.W. Jones, D.W. Cooke   +4 more
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Synthesis of plastic scintillation microspheres: Evaluation of scintillators

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2013
Abstract The use of plastic scintillation microspheres (PSm) appear to be an alternative to liquid scintillation for the quantification of alpha and beta emitters because it does not generate mixed wastes after the measurement (organic and radioactive). In addition to routine radionuclide determinations, PSm can be used for further applications, e.g.
L.M. Santiago, H. Bagán, A. Tarancón, J.F. Garcia   +3 more
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Characteristics of Plastic Scintillators

The Journal of Chemical Physics, 1957
Information on the light output of a group of organic solutes in polyvinyltoluene has been obtained. The primary solutes studied are p-terphenyl and 2-phenyl-5-(4-biphenylyl)-1,3,4 oxadiazole (PBD), the latter being the most efficient. Of the secondary solutes studied, 4,4′-diphenylstilbene and 2,5-dibiphenylyl oxazole (BBO) are the most efficient. The
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New types of plastic scintillators

Nuclear Instruments and Methods in Physics Research, 1982
Abstract Two types of scintillators based on a copolymer of methylmethacrylate and styrene and a crosslinking polystyrene were developed. These have as good mechanical properties as Plexipop. The results on some of more than a hundred samples of different compositions examined on their light output, attenuation lenght and decay time showed that ...
T. Inagaki, R. Takashima
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