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US 2014/0209807 A1Published application
Method and apparatus for fast determination of unknown radiation dose
AssigneeLandauer, Inc.
InventorsMARK S. AKSELROD, KENT J. DILLIN
Life of this patent
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Abstract
Described is a method for determination of an unknown radiation dose to which an optically stimulated luminescence (OSL) sensor has been exposed utilizing a pulsed optically stimulated luminescence (POSL) technique and a battery operated portable instrument.
Claims5
-11. (canceled)
An apparatus comprising:
- an LED light source for emitting a green illumination light for illuminating an optically stimulated luminescence (OSL) sensor,
- a photodetector for detecting of green luminescent light emitted by the OSL sensor,
- a pulse counter for counting photon pulses generated by a photodetector based on photons of luminescent light emitted by the OSL sensor and counted by the photodetector, and
- a microprocessor for controlling the LED light source and the photodetector and the pulse counter,
- wherein the microprocessor controls when the LED light source, the photodetector and the pulse counter are switched between an on state and an off state,
- wherein the pulse counter is part of the microprocessor, and
- wherein the microprocessor determines a radiation dose of one type of ionizing radiation to which the OSL sensor has been exposed based on the photon pulses counted by the pulse counter.
4 more elements
Dependencies are inferred from the claim text.