Abstract

A handheld device for the location and identification of a radiation source, including: a radiation transparent housing; a radiation locator device disposed within the radiation transparent housing operable for determining the location of the radiation source, wherein the radiation locator device includes a plurality of gamma detection crystals arranged in a geometric pattern and separated by a gamma shielding material, a plurality of detectors coupled to the plurality of gamma detection crystals, and a processor module coupled to the plurality of detectors; one or more of a neutron detection crystal and a gamma spectroscopy crystal disposed within the radiation transparent housing adjacent to the radiation locator device; and one or more detectors coupled to the one or more of the neutron detection crystal and the gamma spectroscopy crystal and the processor module; wherein the one or more of the neutron detection crystal and the gamma spectroscopy crystal, the one or more detectors, and the processor module are collectively operable for identifying the radiation source.

IPC Classes  ?

• G01T 1/20 - Measuring radiation intensity with scintillation detectors
• G01T 1/17 - Circuit arrangements not adapted to a particular type of detector
• G01T 3/06 - Measuring neutron radiation with scintillation detectors
• G01T 3/08 - Measuring neutron radiation with semiconductor detectors
• G01V 5/00 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
• G01T 1/36 - Measuring spectral distribution of X-rays or of nuclear radiation

Abstract

A device for sensing, locating, and characterizing a radiation emitting source, including: a detection crystal having dimensions great enough such that regional differences in radiation response are generated in the detection crystal by radiation impinging on one or more surfaces of the detection crystal; and a plurality of detectors one or more of coupled to and disposed on a plurality of surfaces of the detection crystal operable for detecting the regional differences in radiation response generated in the detection crystal by the radiation impinging on the one or more surfaces of the detection crystal.

IPC Classes  ?

• G01T 1/20 - Measuring radiation intensity with scintillation detectors
• G01T 3/06 - Measuring neutron radiation with scintillation detectors
• G01T 1/202 - Measuring radiation intensity with scintillation detectors the detector being a crystal
• G01T 1/24 - Measuring radiation intensity with semiconductor detectors
• G01T 1/16 - Measuring radiation intensity
• G01T 3/08 - Measuring neutron radiation with semiconductor detectors

Abstract

A radiation area monitor device/method, utilizing: a radiation sensor having a directional radiation sensing capability; a rotation mechanism operable for selectively rotating the radiation sensor such that the directional radiation sensing capability selectively sweeps an area of interest; and a processor operable for analyzing and storing a radiation fingerprint acquired by the radiation sensor as the directional radiation sensing capability selectively sweeps the area of interest. Optionally, the radiation sensor includes a gamma and/or neutron radiation sensor. The device/method selectively operates in: a first supervised mode during which a baseline radiation fingerprint is acquired by the radiation sensor; and a second unsupervised mode during which a subsequent radiation fingerprint is acquired by the radiation sensor, wherein the subsequent radiation fingerprint is compared to the baseline radiation fingerprint and, if a predetermined difference threshold is exceeded, an alert is issued.

IPC Classes  ?

• G01T 3/00 - Measuring neutron radiation
• G01T 7/12 - Provision for actuation of an alarm
• G01T 1/16 - Measuring radiation intensity
• G21F 3/00 - Shielding characterised by its physical form, e.g. granules, or shape of the material

Abstract

A radiation area monitor device/method, utilizing: a radiation sensor; a rotating radiation shield disposed about the radiation sensor, wherein the rotating radiation shield defines one or more ports that are transparent to radiation; and a processor operable for analyzing and storing a radiation fingerprint acquired by the radiation sensor as the rotating radiation shield is rotated about the radiation sensor. Optionally, the radiation sensor includes a gamma and/or neutron radiation sensor. The device/method selectively operates in: a first supervised mode during which a baseline radiation fingerprint is acquired by the radiation sensor as the rotating radiation shield is rotated about the radiation sensor; and a second unsupervised mode during which a subsequent radiation fingerprint is acquired by the radiation sensor as the rotating radiation shield is rotated about the radiation sensor, wherein the subsequent radiation fingerprint is compared to the baseline radiation fingerprint and, if a predetermined difference threshold is exceeded, an alert is issued.

IPC Classes  ?

• G21F 3/00 - Shielding characterised by its physical form, e.g. granules, or shape of the material
• G01T 3/00 - Measuring neutron radiation
• G01T 7/12 - Provision for actuation of an alarm
• G01T 1/16 - Measuring radiation intensity