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Birks speculated that the loss of linearity is due to recombination and quenching effects between the excited molecules and the surrounding substrate. Birks' law has mostly been tested for
214:. A more complete theory of scintillation saturation, that gives Birks' law when only unimolecular de-excitation is included, can be found in a paper by Blanc, Cambou, and De Laford.
33:(named after British physicist John B. Birks) is an empirical formula for the light yield per path length as a function of the energy loss per path length for a particle traversing a
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is a constant of proportionality linking the local density of ionized molecules at a point along the particle's path to the specific energy loss; "Since
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Leverington, B.L.; Anelli; Campana; Rosellini (1970). "A 1 mm
Scintillating Fibre Tracker Readout by a Multi-anode Photomultiplier".
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Birks, J.B. (1951). "Scintillations from
Organic Crystals: Specific Fluorescence and Relative Response to Different Radiations".
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Nuclear
Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
185:, called Birks' coefficient, which has units of distance per energy. Its value depends on the scintillating material."
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Torrisi, L. (October 2000). "Plastic scintillator investigations for relative dosimetry in proton-therapy".
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Tretyak, V.I. (2010). "Semi-empirical calculation of quenching factors for ions in scintillators".
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509:"Birks' scaling of the particle light output functions for the EJ 299-33 plastic scintillator"
206:. Its applicability to inorganic scintillators is debated. A good discussion can be found in
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Pöschl, T. (2021). "Measurement of ionization quenching in plastic scintillators".
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Semi-empirical calculation of quenching factors for ions in scintillators
210:. A compilation of Birks' constant for various materials can be found in
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297:"A Tribute to Professor John B Birks - LSC International Home"
37:, and gives a relation that is not linear at high loss rates.
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Nuclear
Instruments and Methods in Physics Research Section A
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Nuclear
Instruments and Methods in Physics Research Section B
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is the specific energy loss of the particle per path length,
438:"Particle Detectors at Accelerators: Organic scintillators"
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Particle
Detectors at Accelerators: Organic scintillators
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195:-based scintillators and 1.26–2.07 × 10 g MeV cm for
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appear only as a product, they act as one parameter,
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283:The Theory and Practice of Scintillation Counting
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550:C. R. Acad. Sci. Paris
199:-based scintillators.
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204:organic scintillators
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507:Nyibule, S. (2014).
281:Birks, J.B. (1964).
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525:2014NIMPA.768..141N
478:2010APh....33...40T
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