gamma neutron survey
11radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… …
12radiation — 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… …
13Pulsar — Pour les articles homonymes, voir Pulsar (homonymie). Un pulsar est le nom donné à l objet astrophysique produisant un signal périodique, de période allant de l ordre de la milliseconde à quelques dizaines de secondes. Il est considéré comme… …
14Nuclear MASINT — Intelligence Cycle Management Collection Management MASINT Electro optical MASINT Nuclear MASINT Geophysical MASINT Radar MASINT Materials MASINT Radiofrequency MASINT Nuclear MASINT is one of the six major subdisciplines generally accepted to… …
15Pulsars — Pulsar Pour les articles homonymes, voir Pulsar (homonymie). Un pulsar est le nom donné à une étoile à neutrons, tournant très rapidement sur elle même (période typique de l ordre de la seconde, voire beaucoup moins pour les pulsars milliseconde) …
16Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
17telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …
18Compact star — In astronomy, the term compact star (sometimes compact object) is used to refer collectively to white dwarfs, neutron stars, other exotic dense stars, and black holes. These objects are all small for their mass. The term compact star is often… …
19spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …
20Type II supernova — The expanding remnant of SN 1987A, a Type II P supernova in the Large Magellanic Cloud. NASA image. A Type II supernova (plural: supernovae) results from the rapid collapse and violent explosion of a massive star. A star must have at least 9… …
