Results 221 to 230 of about 1,280 (258)
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A new technique for fabrication of a Gas Electron Multiplier
2000 IEEE Nuclear Science Symposium. Conference Record (Cat. No.00CH37149), 2002The Gas Electron Multiplier (GEM) represents one of the most promising micro-pattern detectors for providing stable, charge multiplication over a wide range of active areas, and with genuinely affordable and reproducible fabrication methods. Several important characteristics of the GEM remain to be investigated and optimized.
P. Rehak, G.C. Smith, J.B. Warren, B. Yu
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Fabrication of microsphere plate electron multiplier device
SPIE Proceedings, 2008Microsphere plate (MSP) is a new type of electron multiplier device. It is similar to the traditional microchannel plate (MCP) in dimensions and model of operation. Compared with the MCP electron multiplier, the MSP has some unique characteristics such as a high electron gain, without ion feedback and easy to be fabricated, thus it is widely used ...
Xin Wang +8 more
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Trial fabrication of beryllides as advanced neutron multiplier
Fusion Engineering and Design, 2011Abstract Beryllium metal is considered as the neutron multiplier in the pebble bed blanket. On the other hand, advanced neutron multipliers with lower swelling and higher stability at high temperature are desired in pebble bed blankets for DEMO.
Masaru Nakamichi +2 more
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Fabrication of beryllide pebble as advanced neutron multiplier
Fusion Engineering and Design, 2014Abstract Fusion reactors require advanced neutron multipliers with great stability at high temperatures. Beryllium intermetallic compounds, called beryllides such as Be 12 Ti, are the most promising materials for use as advanced neutron multipliers. However, few studies have been conducted on the development of mass production methods for beryllide ...
Masaru Nakamichi, Jae-Hwan Kim
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Fabrication of an electron multiplier utilizing diamond films
Thin Solid Films, 1994High secondary electron yields (sigma=14-27) from polycrystalline diamond films on Mo substrates have been reported previously. We observed that continuous exposure to an electron beam degraded the secondary yield in vacuum as a function of fluence owing to a loss of surface hydrogen.
G.T. Mearini +5 more
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The effect of twist multiplier on the tear strength of woven fabrics
International Design Journal, 2021Tearing strength is one of the important quality items of finished woven fabrics. It refers to the rupture of a fabric progressively along a line thread by thread. Tearing strength mainly depends on fibre, yarn and fabric characteristics along with mechanical and chemical finishing treatments given to the fabric.
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Development of materials and fabrication of porous and pebble bed beryllium multipliers
Journal of Nuclear Materials, 2000Abstract Beryllium is considered to be a neutron multiplier material for the reference ITER breeding blanket. The main requirements for the porous beryllium multiplier for the breeding blanket are: (1) inherently open porosity within 20 ± 2% for easy removal of radioactive gases; (2) high thermal conductivity; (3) close contact with a stainless steel
D.A. Davydov +5 more
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Design and Fabrication of An Improved Capacitor Multiplier with Good Frequency Characteristics
Journal of the Institute of Electronics Engineers of Korea, 2013In this paper, a capacitor multiplier with good frequency characteristics has been proposed. Effective capacitance of conventional capacitor multiplier decreases as frequency increases due to internal series resistance. On the other hand, the proposed capacitor multiplier using cascode structure has smaller internal resistance, thus shows good ...
Dae-Hwan Lee +4 more
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Beryllide pebble fabrication of Be–Zr compositions as advanced neutron multipliers
Fusion Engineering and Design, 2016Abstract Fusion reactors require advanced neutron multipliers with high stability at high temperatures. Beryllium intermetallic compounds (beryllides) have a universally robust potential for high temperature use. Fabrication of beryllide pebbles of Be–Zr compositions was conducted from the viewpoint of pebble mass production.
Masaru Nakamichi +2 more
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Study and Fabrication of a Frequency Divider-Multiplier Scheme for High-Efficiency Microwave Power
IEEE Transactions on Communications, 1976The design, fabrication, and experimental evaluation of an exploratory 8.2 W, microwave FM power amplifier for the 4-GHz band are presented. It operates on a frequency divide, amplify, and multiply scheme receiving about 2-4 dBm of FM signal in the 4-GHz band, divides the frequency coherently by two, amplifies the modulated signal to about 10.4 W, and ...
Syed V. Ahamed, J. C. Irvin, H. Seidel
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