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Topic: MicroChannel

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	General Spectroscopy Overview
		Other photodetectors include imaging tubes (e.g., television cameras), which can measure a spatial variation of the light across the surface of the photocathode, and microchannel plates, which combine the spatial resolution of an imaging tube with the light sensitivity of a photomultiplier.
		A night vision device consists of a microchannel plate multiplier in which the electrons at the output are directed onto a phosphor screen and can then be read out with an imaging tube.
		Solid-state detectors such as semiconductor photodiodes detect light by using photons to excite electrons from immobile, bound states of the semiconductor (the valence band) to a state where the electrons are mobile (the conduction band).
	www.pharm.uky.edu /ASRG/general_spectroscopy.html (3311 words)

	ipedia.com: Extended Industry Standard Architecture Article (Site not responding. Last check: 2007-11-06)
		It was announced in late 1988 by PC clone vendors as a counter to IBM's use of its proprietary MicroChannel...
		The Extended Industry Standard Architecture (in practice almost always shortened to EISA) is a bus standard for IBM compatible computers.
		It was announced in late 1988 by PC clone vendors as a counter to IBM's use of its proprietary MicroChannel Architecture (MCA) in its PS/2 series.
	www.ipedia.com /extended_industry_standard_architecture.html (252 words)

	EPACT
		Each STEP telescope includes a start and stop microchannel plate detector as well as a solid-state detector to measure the total energy.
		These electrons are accelerated by a 1 kV potential within the chamber and are directed toward a chevron pair of microchannel plates (MCPs) which detects them and multiplies them by roughly 107, producing a measurable signal.
		A similar STOP signal is derived from the back-scattered secondary electroncs produced when the incoming ion strikes the front surface of the solid state detector.
	lheawww.gsfc.nasa.gov /docs/gamcosray/lecr/EPACT/epact.html (3444 words)

	Computer History Museum - Timeline (Site not responding. Last check: 2007-11-06)
		A step up from the 68020, it built on a 32-bit enhanced microprocessor with a central processing unit core, a data cache, an instruction cache, an enhanced bus controller, and a memory management unit in a single VLSI device — all operating at speeds of at least 20 MHz.
		Compaq and other PC-clone makers developed enhanced industry standard architecture —; better than microchannel and retained compatibility with existing machines.
		EISA used a 32-bit bus, or a means by which two devices can communicate.
	www.computerhistory.org /timeline/timeline.php?timeline_category=cmpnt (1997 words)

	Toggit Certification Home for MCSE CCNA A+ study guides and test prep (Site not responding. Last check: 2007-11-06)
		The PCI controller exchanges information with the computer’s processor, either 32 or 64 bits at a time, and allows intelligent PCI adapters to perform certain tasks concurrently with the main processor by using bus-mastering techniques.
		PCI is compatible with ISA (Industry Standard Architecture), EISA (Extended Industry Standard Architecture), and MCA (Microchannel Architecture) expansion buses for backward compatibility with older technologies.
		PCI can operate at a bus speed of 32MHz and can manage a maximum throughput of 132MBps with a 32-bit data path or a rate of 264MBps with a 64-bit data path.
	www.toggit.com /Library/pedia/techno.asp?Term=p&Techno=Letter (9535 words)

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