Secondary ionization — The process of secondary ionization consists of removing a second electron from an atom or molecule when another electron has been removed before (primary ionization) … Wikipedia
ionization — i·on·i·za·tion (ī ə nĭ zāʹshən) n. 1. The formation of or separation into ions by heat, electrical discharge, radiation, or chemical reaction. 2. The state of being ionized. * * * Process by which electrically neutral atoms or molecules are… … Universalium
Secondary electrons — are electrons generated as ionization products. They are called secondary because they are generated by other radiation (the primary radiation). This radiation can be in the form of ions, electrons, or photons with sufficiently high energy, i.e.… … Wikipedia
Secondary ion mass spectrometry — Infobox chemical analysis name = Secondary ion mass spectrometry caption =CAMECA IMS3f Magnetic SIMS Instrument acronym = SIMS classification =Mass spectrometry analytes = Solid surfaces, thin films related = Fast atom bombardment… … Wikipedia
Chemical ionization — (CI) is an ionization technique used in mass spectrometry.[1][2][3] Chemical ionization is a lower energy process than electron ionization. The lower energy yields less fragmentation, and usually a simpler spectrum. A typical CI spectra has an… … Wikipedia
Static secondary ion mass spectrometry — Static secondary ion mass spectrometry, or static SIMS is a technique for chemical analysis including elemental composition and chemical structure of the uppermost atomic or molecular layer of a solid which may be a metal, semiconductor or… … Wikipedia
Critical ionization velocity — experiment onboard space shuttle Discovery (STS 39), releasing a plume of nitrous oxide gas. Full text Critical ionization velocity (CIV, also called Critical velocity, CV) is the relative v … Wikipedia
radiation 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… … Universalium
Townsend coefficient — The first Townsend coefficient ( α ), also known as first Townsend avalanche coefficient is a term used in an ionization process where there is a possibility of secondary ionization because the primary ionization electrons gain sufficient energy… … Wikipedia
delta ray — Physics. a low energy electron emitted by a substance after bombardment by higher energy particles, as alpha particles. [1905 10] * * * ▪ physics in physics, any atomic electron that has acquired sufficient energy by recoiling from a… … Universalium