Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal … Wikipedia
radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… … Universalium
Reed Research Reactor — The Reed Research Reactor (RRR) is a research nuclear reactor located on campus at Reed College in Portland, OR. It is a pool type TRIGA Mark I reactor, built by General Atomics in 1968 and operated since then under licence from the Nuclear… … Wikipedia
Threshold displacement energy — The threshold displacement energy Td is the minimum kinetic energy that an atom in a solid needs to be permanently displaced from its lattice site to a defect position. It is also known as displacement threshold energy or just displacement energy … Wikipedia
Nuclear criticality safety — is a field of nuclear engineering dedicated to the prevention of nuclear and radiation accidents resulting from an inadvertent, self sustaining nuclear chain reaction.[1] Additionally, nuclear criticality safety is concerned with mitigating the… … Wikipedia
CANDU reactor — The CANDU reactor is a Canadian invented, pressurized heavy water reactor developed initially in the late 1950s and 1960s by a partnership between Atomic Energy of Canada Limited (AECL), the Hydro Electric Power Commission of Ontario (now known… … Wikipedia
Nuclear fuel — Process … Wikipedia
Fast neutron therapy — Intervention ICD 10 PCS D?0?5ZZ ICD 9: 92.26 Fast neutron therapy utilizes high energy neutrons typically greater than 20 MeV … Wikipedia
Rings of Uranus — The scheme of Uranus s ring moon system. Solid lines denote rings; dashed lines denote orbits of moons. The planet Uranus has a system of rings intermediate in complexity between the more extensive set around Saturn and the simpler systems around … Wikipedia
Kikuchi line — s, they are easily seen in diffraction from regions of the specimen thick enough for multiple scattering [David B. Williams and C. Barry Carter (1996) Transmission electron microscopy: A textbook for materials science (Plenum Press, NY) ISBN 0… … Wikipedia
Organocobalt chemistry — is the chemistry of organometallic compounds containing a carbon to cobalt chemical bond. Organocobalt compounds are involved in several organic reactions and the important biomolecule vitamin B12 has a cobalt carbon bond. Many organocobalt… … Wikipedia