Results 211 to 220 of about 39,113 (261)

Electron trapping in electron-beam irradiated SiO2

Journal of Applied Physics, 1978
In addition to the well-known positive space charge, electron irradiation of MOS capacitors with 25-keV electrons is shown to introduce additional uncharged electron traps into the oxide layer. These traps persist after most of the positively charged defects have been removed by the usual low-temperature (? °C) anneals. Their presence after this anneal
J. M. Aitken, D. R. Young, K. Pan
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Modeling electron beam irradiation of methane

International Journal of Chemical Kinetics, 2022
AbstractWe built a chemical kinetic model for the electron beam irradiation of methane and report simulation results with dose rates ranging from 2 to 200 kGy s–1 at 298 K and 1 atm pressure. The model contains 92 species and 778 gas‐phase reactions. We report the time evolution of concentrations of stable products (including H2, C2H6, C3H8, C2H4, C3H6,
Weiyao Gu, Theodore S. Dibble
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Thermal stability of electron beam-irradiated polytetrafluoroethylene

Journal of Applied Polymer Science, 1997
Polytetrafluoroethylene (PTFE) was subjected to 1 MeV electron beam irradiation in air. The thermal stability and the degradation fragments of the irradiated polymer were studied in dependence on the radiation dose up to 4 MGy by thermogravimetric analysis coupled with mass spectrometry.
U. Lappan, L. Häußler, G. Pompe, K. Lunkwitz   +3 more
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Surrogates for validation of electron beam irradiation of foods

International Journal of Food Microbiology, 2006
The aim of this study was to identify a potential surrogate to describe the radiation sensitivity of the most common pathogens encountered in fruits. Three pathogens: Escherichia coli O157:H7 933, Listeria monocytogenes ATCC 51414, and Salmonella Poona, and five non-pathogens: E. coli K-12 MG1655, Listeria innocua Seeliger 1983 (NRRL B-33003 and NRRl B-
Oscar, Rodriguez, M Elena, Castell-Perez, Nont, Ekpanyaskun, Rosana G, Moreira, Alejandro, Castillo   +4 more
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Electron beam irradiation modification of collagen membrane

Biomaterials, 2006
A critical observation of reconstituted collagen membrane radiated by electron beam (EB) indicated that these collagenous fibers become cross-linked network when the irradiation is carried out in greater than melt temperature and nitrogen atmosphere. Studies on the membrane properties showed that glass transformation temperature (Tg) and melt point (Tm)
Bo, Jiang, Zhihong, Wu, Huichuan, Zhao, Fangyuan, Tang, Jian, Lu, Qingrong, Wei, Xingdong, Zhang   +6 more
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Effects of Electron Beam Irradiation on the Electrospinning of Polyacrylonitrile

Journal of Nanoscience and Nanotechnology, 2015
Electron beam (e-beam) irradiation of polyacrylonitrile (PAN) was performed to investigate the effects of radiation on the electrospinning process. For this study, polyacrylonitrile powder was subjected to e-beam irradiation with different doses of up to 100 kGy under an N2 atmosphere.
Jeun, JP Jeun, Joon Pyo, Kim, HB Kim, Hyun-Bin, Oh, SH Oh, Seung-Hwan, Park, JK Park, Jung-Ki, Kang, PH Kang, Phil-Hyun   +4 more
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Blood irradiation with accelerator produced electron beams

Physics in Medicine and Biology, 2000
Blood and blood products are irradiated with gamma rays to reduce the risk of graft versus host disease (GVHD). A simple technique using electron beams produced by a medical linear accelerator has been studied to evaluate irradiation of blood and blood products.
M J, Butson, T, Cheung, P K, Yu, M J, Stokes   +3 more
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Cross-Linking of PFA by Electron Beam Irradiation

Macromolecules, 2003
The effect of electron beam radiation on a perfluoroalkoxy (PFA) resin was examined using solid-state high-speed magic angle spinning F-19 NMR spectroscopy and FT-IR spectroscopy. Samples were prepared for analysis by subjecting them to electron beam radiation in the dose range 0.5-2.0 MGy at 633 K, which is above the crystalline melting temperature ...
Dargaville, T. R., George, G. A., Hill, D. J. T., Scheler, U., Whittaker, A. K.   +4 more
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A compact low-energy electron beam irradiator

Applied Radiation and Isotopes, 2002
A new compact low-energy electron beam irradiator has been developed. The irradiator generates an electron beam to the air with energy variable from 35 to 80 keV and with a maximum current of 1 mA. The irradiation area is 30 x 30 mm2. A special irradiation port is developed for this low-energy irradiator.
Sun Oh, Cho, Min, Kim, Byung Cheol, Lee, Young Uk, Jeong, In-su, Cha, Jeong-sik, Choi   +5 more
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Electron-beam irradiation of polymer bracket materials

American Journal of Orthodontics and Dentofacial Orthopedics, 2011
Electron-beam irradiation can be used to influence the properties of polymers. Electron beams cause cross-linking that enhances the molecular mass of the polymer; this leads to branched chains until, ultimately, a 3-dimensional network is formed. The aim of this study was to evaluate the effect of electron-beam irradiation on polymer bracket materials ...
Andreas, Faltermeier, Michael, Behr, Claudia, Reicheneder, Peter, Proff, Piero, Römer   +4 more
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