counter (redirected from going counter)

counter /coun·ter/ (koun´ter) an instrument to compute numerical value; in radiology, a device for enumerating ionizing events.

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Coulter counter  an automatic instrument used in enumeration of formed elements in the peripheral blood.

Geiger counter , Geiger-Müller counter an amplifying device that indicates the presence of ionizing particles, particularly ß particles.

scintillation counter  a device for detecting ionization events, permitting determination of the concentration of radioisotopes in the body or other substance.

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count·er (kountr)

n.

One that counts, especially an electronic or mechanical device that automatically counts occurrences or repetitions of phenomena or events.

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counter,

n a device for enumerating ionizing events.

counter, Geiger-Muller (G-M counter, Geiger counter),

n.pr a highly sensitive gas-filled device that measures radiation.

counter, proportional,

n a gas-filled radiation detection tube in which the pulse produced is proportional to the number of ions formed in the gas by the primary ionizing particle.

counter, scintillation

n a combination of phosphor, photomultiplier tube, and associated circuits for counting the light emissions that are produced in the phosphor.

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counter

an instrument or apparatus by which numerical value is computed; in radiology, a device for enumerating ionizing events.

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Coulter counter

see coulter counter.

Geiger counter, Geiger-Müller counter

a radiation counter using a gas-filled tube that indicates the presence of ionizing particles.

scintillation counter

a device for detecting beta and gamma rays, permitting determination of the concentration of radioisotopes in the body or other substance. It is more important for gamma rays, which are poorly measured by a Geiger counter.