photomultipliern.

Brit.

/ˌfəʊtə(ʊ)ˈmʌltᵻplʌɪə/, U.S.

/ˌfoʊdoʊˈməltəˌplaɪər/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, multiplier n.

Etymology: < photo- comb. form + multiplier n.

Electronics.

A phototube in which the small current from the photocathode is multiplied by a succession of secondary electrodes, so that light of very low intensity can be detected. Also photomultiplier tube.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] > phototube

phototube1930

photomultiplier1940

1940 Rev. Sci. Instruments 11 226/1 In the photo~multiplier the original electron current is supplied by a photo-cathode.

1948 R. D. O'Neal in Proc. Symp. Large-scale Digital Calculating Machinery 1947 (U.S. Navy Dept. & Harvard Univ.) 262 With the light sources available and with 0.010″ × 0.020″ spots, it is possible to reliably obtain signals of 20 volts or more across a 100,000 ohm load resistor for the photo-multiplier tube.

1961 G. R. Choppin Exper. Nucl. Chem. vii. 93 Normally, in scintillation systems it is not the phosphor or photomultiplier tube that determines the resolving time, but rather it is the electronic system.

1992 Economist 29 Feb. 106/2 The photomultipliers will pick up the tiny burst of Cerenkov light given off, and the monitors on the surface will be able to infer the direction the neutrino came from.

2002 F. Close et al. Particle Odyssey vii. 114 An annihilation in the scintillator created a burst of charged particles and this in turn produced a large characteristic pulse of light, which was detected by photomultiplier tubes.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	photomultiplier
释义	photomultipliern. Brit. /ˌfəʊtə(ʊ)ˈmʌltᵻplʌɪə/, U.S. /ˌfoʊdoʊˈməltəˌplaɪər/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, multiplier n. Etymology: < photo- comb. form + multiplier n. Electronics. A phototube in which the small current from the photocathode is multiplied by a succession of secondary electrodes, so that light of very low intensity can be detected. Also photomultiplier tube. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] > phototube phototube1930 photomultiplier1940 1940 Rev. Sci. Instruments 11 226/1 In the photo~multiplier the original electron current is supplied by a photo-cathode. 1948 R. D. O'Neal in Proc. Symp. Large-scale Digital Calculating Machinery 1947 (U.S. Navy Dept. & Harvard Univ.) 262 With the light sources available and with 0.010″ × 0.020″ spots, it is possible to reliably obtain signals of 20 volts or more across a 100,000 ohm load resistor for the photo-multiplier tube. 1961 G. R. Choppin Exper. Nucl. Chem. vii. 93 Normally, in scintillation systems it is not the phosphor or photomultiplier tube that determines the resolving time, but rather it is the electronic system. 1992 Economist 29 Feb. 106/2 The photomultipliers will pick up the tiny burst of Cerenkov light given off, and the monitors on the surface will be able to infer the direction the neutrino came from. 2002 F. Close et al. Particle Odyssey vii. 114 An annihilation in the scintillator created a burst of charged particles and this in turn produced a large characteristic pulse of light, which was detected by photomultiplier tubes. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1940
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