Electronic dosimeter for alarm generation in pulsed radiation fields
AssigneeThermo Fisher Scientific Messtechnik GmbH
InventorsNorbert TROST, Michael IWATSCHENKO-BORHO
Life of this patent
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Abstract
A portable electronic dosimeter is described that comprises a plurality of detectors each configured to detect a type of ionizing radiation, wherein each detector is associated with an amplifier configured to produce an output in response to a plurality of detected photons of the ionizing radiation and an event counter configured to produce one or more counts in response to the detected photons of the ionizing radiation over an integration time; and a processor configured to receive the one or more counts from each of the counters and determine if there is coincidence of the one or more counts of all the detectors, wherein if there is coincidence the processor is configured to provide an over range alarm signal.
Claims21
A portable electronic dosimeter comprising:
- a plurality of detectors each configured to detect a type of ionizing radiation, wherein each detector is associated with an amplifier configured to produce an output in response to a plurality of detected photons of the ionizing radiation and an event counter configured to produce one or more counts in response to the detected photons of the ionizing radiation over an integration time;
- and
- a processor configured to receive the one or more counts from each of the counters and determine if there is coincidence of the one or more counts of all the detectors, wherein if there is coincidence the processor is configured to provide an over range alarm signal.
A method comprising:
- detecting a plurality of photons of ionizing radiation using a plurality of detectors each enabled for a type of ionizing radiation;
- producing an output from each of the detectors in response to the plurality of detected photons;
- producing one or more counts in response to the detected photons of the ionizing radiation over an integration time;
- and
- determining if there is coincidence of the one or more counts of all the detectors.
The method of claim 20, wherein:
- at least 1 detector comprises more than 1 threshold value.
Dependencies are inferred from the claim text.