Results 291 to 300 of about 161,928 (342)

Electron beam irradiation of cellulose

Radiation Physics and Chemistry, 2009
Abstract Using a 90 kW, 3 MeV Dynamitron™, the molecular weight of microcrystalline cellulose (MCC) was reduced from 82,000 to 5000 Da with a dose of 100 kGy. The relative crystallinity of the MCC was reduced from 87% to 45% with a dose of 1000 kGy. The available surface area, an indication on how well cellulose will react with chemical agents, was ...
Mark Driscoll, Arthur Stipanovic, William Winter, Kun Cheng, Mellony Manning, Jessica Spiese, Richard A. Galloway, Marshall R. Cleland   +7 more
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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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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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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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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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Degradation of hexachlorobenzene by electron beam irradiation

Journal of Hazardous Materials, 2007
Hexachlorobenzene removal efficiencies in different solvents by electron beam irradiation were investigated. Several factors that might affect the removal efficiencies were further examined. At 10 kGy, HCB degradation value was 85.8% in the solvent of acetone:water mixture (20:80, v/v), while at the same dose, the reduction value of 42.6% was achieved ...
Jibiao, Zhang, Zheng, Zheng, Jingfei, Luan, Guangjun, Yang, Weihua, Song, Yun, Zhong, Zongchuan, Xie   +6 more
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Intraoperatic electron beam irradiation in pancreatic cancer

Frontiers in Bioscience, 1998
Intraoperative electron beam radiation therapy (IOERT) is a technique in which a single high fraction radiation treatment is administered at the time of surgery. Using IOERT, the total radiation dose delivered to a tumor can be increased since sensitive normal tissues are removed from the radiation field during the surgical procedure.
C G, Willett, A L, Warshaw
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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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Quality of Electron Beam Irradiated Strawberries

Journal of Food Science, 1995
ABSTRACT Fresh ‘Tristar’ strawberries were treated by electron beam irradiation to determine the effects on postharvest quality attributes and shelf life. The intensity of red color rated by sensory panelists decreased as irradiation dosage increased from 0 to 2 kGy.
L. YU, C.A. REITMEIER, M.L. GLEASON, G.R. NONNECKE, D.G. OLSON, R.J. GLADON   +5 more
openaire   +1 more source