particle counting

См. также в других словарях:

• Particle size distribution — The particle size distribution [Jillavenkatesa A, Dapkunas S J, Lin Sien Lum, Particle Size Characterization , NIST Special Publication 960 1, 2001] (PSD) of a powder, or granular material, or particles dispersed in fluid, is a list of values or… …   Wikipedia

• particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …   Universalium

• Particle counter — A particle counter is an instrument that detects and counts particles. Applications of particle counters are separated into two primary categories:*Aerosol particle counters *Liquid particle countersAerosol particle countersAerosol Particle… …   Wikipedia

• Particle number — Conjugate variables of thermodynamics Pressure Volume (Stress) (Strain) Temperature Entropy Chemical potential Particle number The particle number (or number of particles) of a thermodynamic system …   Wikipedia

• Particle-size analysis — This article describes the determination of the size of particulate solids, where the meaning of the particle excludes those of subatomic particles, which belong to the field of particle physics.Particle size analysis, particle size measurement,… …   Wikipedia

• Counting efficiency — The counting efficiency is the ratio between the number of particles or photons counted with a radiation counter and the number of particles or photons of the same type and energy emitted by the radiation source (IUPAC Compendium of Chemical… …   Wikipedia

• Alpha-particle spectroscopy — One method for testing for (and measuring) many alpha emitters is to use alpha particle spectroscopy. For methods for gamma rays and beta particles, please see gamma spectroscopy and liquid scintillation counting respectively. Experimental… …   Wikipedia

• Coinidence counting — In quantum physics, coincidence counting is used in experiments testing particle non locality and quantum entanglement. In these experiments two particles are created from the same initial energy, inexorably linking/entangling their physical… …   Wikipedia

• coincidence counting — ▪ physics       in physics, the almost simultaneous detection of two nuclear or subatomic particles (e.g., within a time of 10−5 second). Coincidence counting involves two or more particle counters exposed to the same source of particles and… …   Universalium

• Coincidence counting (physics) — In quantum physics, coincidence counting is used in experiments testing particle non locality and quantum entanglement. In these experiments two or more particles are created from the same initial packet of energy, inexorably linking/entangling… …   Wikipedia

• Cleanroom — For the Cleanroom software engineering methodology, see Cleanroom Software Engineering. For the meaning of clean room engineering as a method to avoid copyright infringement, see clean room design. Cleanroom used for the production of… …   Wikipedia