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- Fano_noise abstract "Fano noise is a fluctuation of an electric charge obtained in a detector (in spite of constant value of the measured quantity, which is usually an energy), arising from processes in the detector.It was first described by Ugo Fano in 1947 (Phys. Rev. 72, p. 26–29), as a fluctuation of amount of ion pairs produced by a charged particle of high energy in a gas. The amount of the ion pairs is proportional to the energy the particle loses in the gas, but with some error - due to the Fano noise. Surprisingly, the noise is usually smaller than a Poisson distribution noise (in which the variance is equal to the value - note the variance is average squared distance from the expected value), showing there is an interaction between ionization acts. A Fano factor was introduced to describe it, and the factor is almost independent of the energy measured (Fano computed it to change from 0.43 to 0.47 for ionization of atomic hydrogen by electrons of energy from 1keV to 100keV). Fano expected it to be between 1/3 and 1/2 for gases, for moderate energies of ionizing particles.The Fano noise applies as well to other processes in which an energy is converted to an electric charge - solid state detectors of charged particles and gamma radiation, and even semiconductor light detectors like image sensors. E.g. it is a limiting factor in the noise characteristics of CCDs and CMOS image sensors. The Fano factor achieveable is an important parameter of the detector material – the smaller it is the better.".
- Fano_noise wikiPageExternalLink 1988SPIE..982...70J.
- Fano_noise wikiPageID "18039906".
- Fano_noise wikiPageLength "1822".
- Fano_noise wikiPageOutDegree "10".
- Fano_noise wikiPageRevisionID "656172504".
- Fano_noise wikiPageWikiLink CMOS.
- Fano_noise wikiPageWikiLink Category:Noise.
- Fano_noise wikiPageWikiLink Charge-coupled_device.
- Fano_noise wikiPageWikiLink Fano_factor.
- Fano_noise wikiPageWikiLink Image_sensor.
- Fano_noise wikiPageWikiLink Poisson_point_process.
- Fano_noise wikiPageWikiLink Ugo_Fano.
- Fano_noise wikiPageWikiLink Variance.
- Fano_noise wikiPageWikiLinkText "Fano noise".
- Fano_noise wikiPageWikiLinkText "fano noise".
- Fano_noise wikiPageUsesTemplate Template:Expert-subject.
- Fano_noise subject Category:Noise.
- Fano_noise hypernym Fluctuation.
- Fano_noise comment "Fano noise is a fluctuation of an electric charge obtained in a detector (in spite of constant value of the measured quantity, which is usually an energy), arising from processes in the detector.It was first described by Ugo Fano in 1947 (Phys. Rev. 72, p. 26–29), as a fluctuation of amount of ion pairs produced by a charged particle of high energy in a gas. The amount of the ion pairs is proportional to the energy the particle loses in the gas, but with some error - due to the Fano noise.".
- Fano_noise label "Fano noise".
- Fano_noise sameAs Q5434076.
- Fano_noise sameAs m.047shm3.
- Fano_noise sameAs Q5434076.
- Fano_noise wasDerivedFrom Fano_noise?oldid=656172504.
- Fano_noise isPrimaryTopicOf Fano_noise.