Radiation detection and discrimination device, radiation survey instrument, and method
First Claim
1. A radiation detection and discrimination device, comprising:
- a radiation sensor comprising a LiBaF3 scintillator configured to simultaneously detect presence of a first type of radiation and a second type of radiation and generate an output signal for each type of detected radiation; and
signal processing circuitry communicating with the sensor including data analysis circuitry and memory, the signal processing circuitry operative to receive at least one output signal from the sensor;
wherein the memory is operative to store at least one predetermined indicia characterizing membership of an output signal within a group comprising a unique type of radiation, and wherein the data analysis circuitry compares the output signal with the at least one predetermined indicia to determine membership of the output signal within one group of a plurality of unique groups each comprising a unique type of radiation including the first type of radiation and the second type of radiation.
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Accused Products
Abstract
A radiation detection and discrimination device includes a radiation sensor and signal processing circuitry. The radiation sensor includes a LiBaF3 scintillator configured to simultaneously detect presence of a first type of radiation and a second type of radiation. The radiation sensor generates an output signal for each type of detected radiation. The signal processing circuitry communicates with the sensor, and includes data analysis circuitry and memory. The signal processing circuitry is operative to receive at least one output signal from the sensor. The memory is operative to store at least one predetermined indicia characterizing membership of an output signal within a group comprising a unique type of radiation. The data analysis circuitry compares the output signal with the at least one predetermined indicia to determine membership of the output signal within one group of a plurality of unique groups. Each group comprises a unique type of radiation including the first type of radiation and the second type of radiation. A method is also provided.
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Citations
22 Claims
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1. A radiation detection and discrimination device, comprising:
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a radiation sensor comprising a LiBaF3 scintillator configured to simultaneously detect presence of a first type of radiation and a second type of radiation and generate an output signal for each type of detected radiation; and
signal processing circuitry communicating with the sensor including data analysis circuitry and memory, the signal processing circuitry operative to receive at least one output signal from the sensor;
wherein the memory is operative to store at least one predetermined indicia characterizing membership of an output signal within a group comprising a unique type of radiation, and wherein the data analysis circuitry compares the output signal with the at least one predetermined indicia to determine membership of the output signal within one group of a plurality of unique groups each comprising a unique type of radiation including the first type of radiation and the second type of radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12)
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11. A radiation survey instrument, comprising:
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a scintillation sensor of a single material capable of simultaneously detecting and discriminating a plurality of unique types of radiation and generating an output signal from a detected type of radiation; and
signal processing circuitry communicating with the sensor and operative to receive the generated output signal from the scintillation sensor and compare the output signal with a predetermined histogram of pulse amplitude versus time;
wherein the signal processing circuitry compares the pulse shape of the output signal with the histogram to determine membership of the output signal within an identified type of radiation from the plurality of unique types of radiation. - View Dependent Claims (13, 14, 15, 16, 17, 19, 20, 21, 22)
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18. A method of simultaneously measuring for the presence of at least two unique types of radiation, comprising:
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in a radiation detector, detecting the presence of one type of at least two types of radiation;
in response to detecting the one type of radiation, producing an output signal having a pulse shape comprising output pulse amplitude versus time;
storing a first digital data set representative of a first type of radiation and a second digital data set representative of a second type of radiation; and
comparing the output signal pulse shape of the one type of detected radiation with the first digital data set and the second digital data set to determine identification of the output signal pulse shape as either a first type of radiation or a second type of radiation.
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Specification