- nuclear disintegrations
- • ядрено разпадане
English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Nuclear properties of selected transuranium element isotopes — ▪ Table Nuclear properties of selected transuranium element isotopes specific activity name and mass principal decay mode half life disintegrations per minute per microgram watts per gram* neptunium 237 alpha 2.14(106) years 1565 2.07(10−5)… … Universalium
Neutron — This article is about the subatomic particle. For other uses, see Neutron (disambiguation). Neutron The quark structure of the neutron. (The color assignment of individual quarks is not important, only that all three colors are present.)… … Wikipedia
Radium — Ra di*um (r[=a] d[i^]*[u^]m), n. [NL., fr. L. radius ray.] (Chem.) An intensely radioactive metallic element found (combined) in minute quantities in pitchblende, and various other uranium minerals. Symbol, Ra; atomic weight, 226.4. Radium was… … The Collaborative International Dictionary of English
Spinthariscope — A Spinthariscope is a device for observing individual nuclear disintegrations caused by the interaction of ionizing radiation with a phosphor (see radioluminescence) or scintillator. The spinthariscope was invented by William Crookes in 1903.… … Wikipedia
spinthariscope — noun an early device used for observing individual nuclear disintegrations … Wiktionary
rutherford — Obsolete term for a unit of radioactivity, representing that quantity of radioactive material in which a million disintegrations are taking place per second; 37 r. = 1 mCi. See Becquerel. [Ernest R., British physicist and Nobel laureate,… … Medical dictionary
Radiocarbon dating — (sometimes simply known as carbon dating) is a radiometric dating method that uses the naturally occurring radioisotope carbon 14 (14C) to estimate the age of carbon bearing materials up to about 58,000 to 62,000 years.[1] Raw, i.e. uncalibrated … Wikipedia
Carbon-14 — Infobox isotope background = #999999 isotope name = Carbon 14 num neutrons = 8 num protons = 6 isotope filename = alternate names = radiocarbon mass number=14 abundance = 1 part per trillion symbol=C decay product = 14N halflife=5,730 error… … Wikipedia
Rocky Flats Plant — The Rocky Flats Plant was a United States nuclear weapons production facility near Denver, Colorado that operated from 1952 to 1992. It was under the control of the United States Atomic Energy Commission (AEC) until 1977, when it was replaced by… … 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
Technetium — molybdenum ← technetium → ruthenium Mn ↑ Tc ↓ Re … Wikipedia