scintillation$72708$ - definizione. Che cos'è scintillation$72708$
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Cosa (chi) è scintillation$72708$ - definizione

MEASUREMENT DEVICE
Scintillation Counter; Scintillation counters; Scintillation meter
  • Hand-held scintillation counter reading ambient gamma dose. The position of the internal detector is shown by the cross
  • Scintillation probe being used to measure surface radioactive contamination. The probe is held as close to the object as practicable
  • Schematic showing incident high energy photon hitting a scintillating crystal, triggering the release of low-energy [[photons]] which are then converted into [[photoelectrons]] and multiplied in the [[photomultiplier]]
  • Apparatus with a scintillating crystal, [[photomultiplier]], and data acquisition components.
  • animation of radiation scintillation counter using a photomultiplier tube.
  • Measurement of gamma ray spectrum with a scintillation counter. A high voltage drives the counter which feeds signals to the Multichannel Analyser (MCA) and computer.
  • Hand-held large area alpha scintillation probe under calibration with a plate source in a bench calibration jig.

twinkling         
  • arcminutes]] from left to right.
TWINKLING OF A STAR
Scintillation (astrophysics); Twinkling stars; Stellar scintillation; Scintillation (astronomy); Twinkling (astronomy); Terrestrial scintillation
n.
1.
Flashing, sparkling, twinkle.
2.
Instant, moment, second, jiffy, trice, flash, twinkling of an eye, time of a wink.
Twinkling         
  • arcminutes]] from left to right.
TWINKLING OF A STAR
Scintillation (astrophysics); Twinkling stars; Stellar scintillation; Scintillation (astronomy); Twinkling (astronomy); Terrestrial scintillation
·p.pr. & ·vb.n. of Twinkle.
II. Twinkling ·noun The time of a wink; a moment; an Instant.
III. Twinkling ·noun The act of one who, or of that which, twinkles; a quick movement of the eye; a wink; a twinkle.
IV. Twinkling ·noun A shining with intermitted light; a scintillation; a sparkling; as, the twinkling of the stars.
Scintillate         
WIKIMEDIA DISAMBIGUATION PAGE
Scintillation (disambiguation); Scintillate; Scintillations; Scintillating; Scintillating (disambiguation)
·vi To sparkle, as the fixed stars.
II. Scintillate ·vi To emit sparks, or fine igneous particles.

Wikipedia

Scintillation counter

A scintillation counter is an instrument for detecting and measuring ionizing radiation by using the excitation effect of incident radiation on a scintillating material, and detecting the resultant light pulses.

It consists of a scintillator which generates photons in response to incident radiation, a sensitive photodetector (usually a photomultiplier tube (PMT), a charge-coupled device (CCD) camera, or a photodiode), which converts the light to an electrical signal and electronics to process this signal.

Scintillation counters are widely used in radiation protection, assay of radioactive materials and physics research because they can be made inexpensively yet with good quantum efficiency, and can measure both the intensity and the energy of incident radiation.