million electron-volts
51cyclotron — n. a particle accelerator that imparts energies of several million electron volts to rapidly moving particles; it is used in investigations in nuclear physics and particle physics. [WordNet 1.5 +PJC] …
52MeV — abbreviation million electron volts …
53Vande Graaff generator — Van de Graaff generator (vănʹ də grăf ) Clarinda/Academy Artworks n. An electrostatic generator in which an electric charge is either removed from or transferred to a large hollow spherical electrode by a rapidly moving belt, accelerating… …
54MeV — /mev/, Physics. million electron volts; megaelectron volt. Also, Mev, mev. * * * …
55spallation — /spaw lay sheuhn/, n. Physics. a nuclear reaction in which several nucleons are released from the nucleus of an atom. [1945 50; SPALL + ATION] * * * ▪ physics high energy nuclear reaction in which a target nucleus struck by an incident… …
56thulium — /thooh lee euhm/, n. Chem. a rare earth metallic element found in the minerals euxenite, gadolinite, etc. Symbol: Tm; at. wt.: 168.934; at. no.: 69; sp. gr.: 9.32. [1875 80; < NL; see THULE, IUM] * * * ▪ chemical element (Tm), chemical element,… …
57fission-track dating — Method of determining the age of a mineral that utilizes the damage done by the spontaneous fission of uranium 238, the most abundant isotope of uranium. The fission results in radiation damage, or fission tracks, that can be made visible by… …
58compound-nucleus model — ▪ nuclear physics description of atomic nuclei proposed (1936) by the Danish physicist Niels Bohr (Bohr, Niels) to explain nuclear reactions as a two stage process comprising the formation of a relatively long lived intermediate nucleus and …
59Joliot-Curie, Frédéric and Irène — ▪ French chemists original names (until 1926) Jean Frédéric Joliot and Irène Curie Respectively, born March 19, 1900, Paris, France died Aug. 14, 1958, Arcouest born Sept. 12, 1897, Paris died March 17, 1956, Paris French physical chemists …
60megaelectron volt — noun One million electron volts, abbreviated as MeV …
