- charged helium
- 氦离子
Medical Chinese dictionary (湘雅医学词典). 2013.
charged helium
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Helium — He li*um (h[=e] l[i^]*[u^]m), n. [NL., fr. Gr. h lios the sun.] (Chem.) An inert, monoatomic, gaseous element occurring in the atmosphere of the sun and stars, and in small quantities in the earth s atmosphere, in several minerals and in certain… … The Collaborative International Dictionary of English
charged particle — n. an atomic particle with a positive or negative charge, as an electron, proton, or helium ion * * * … Universalium
charged particle — n. an atomic particle with a positive or negative charge, as an electron, proton, or helium ion … English World dictionary
Helium-3 — This article is about the elemental isotope. For the record label Helium 3, see Muse or A E Records .infobox isotope background = #F99 isotope name = Helium 3 alternate names =Helium 3,He 3 symbol =He mass number =3 mass =3.016 num neutrons =1… … Wikipedia
Helium mass spectrometer — A helium mass spectrometer is an instrument commonly used to detect and locate small leaks. It was initially developed in the Manhattan Project during World War II to find extremely small leaks in the gas diffusion process of uranium enrichment… … Wikipedia
Helium — otherusesHelium (He) is a colorless, odorless, tasteless, non toxic, inert monatomic chemical element that heads the noble gas group in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the… … Wikipedia
Helium hydride ion — The hydrohelium(1+) cation, HHe+, is a positively charged ion formed by the reaction of a proton with a helium atom in the gas phase, first observed in 1925. [cite journal | author = T. R. Hogness and E. G. Lunn | title = The Ionization of… … Wikipedia
charged-particle radiation therapy — A type of external radiation therapy that uses a special machine to make invisible, high energy particles (protons or helium ions) that kill cancer cells. This type of radiation may cause less damage to nearby healthy tissue than radiation… … English dictionary of cancer terms
Highly Charged Ion — Ein Highly Charged Ion (hoch geladenes Ion), abgekürzt HCI, ist ein Atom, das viele Elektronen verloren hat und daher eine hohe positive elektrische Ladung aufweist. Die maximal erreichbare positive Ladung ist dabei die des „nackten“ Atomkerns,… … Deutsch Wikipedia
Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… … Wikipedia
Helion (chemistry) — A helion is a short name for the naked nucleus of Helium, a doubly positively charged helium ion . In practice, helion refers to the stable helium 3 nucleus, in opposition to the other stable nucleus helium 4, which is usually referred to as an… … Wikipedia
