A network of radiation detection instruments, each having a small solid state radiation sensor module integrated into a cellular phone for providing radiation detection data and analysis directly to a user. The sensor module includes a solid-state crystal bonded to an ASIC readout providing a low c
A network of radiation detection instruments, each having a small solid state radiation sensor module integrated into a cellular phone for providing radiation detection data and analysis directly to a user. The sensor module includes a solid-state crystal bonded to an ASIC readout providing a low cost, low power, light weight compact instrument to detect and measure radiation energies in the local ambient radiation field. In particular, the photon energy, time of event, and location of the detection instrument at the time of detection is recorded for real time transmission to a central data collection/analysis system. The collected data from the entire network of radiation detection instruments are combined by intelligent correlation/analysis algorithms which map the background radiation and detect, identify and track radiation anomalies in the region.
대표청구항▼
We claim: 1. A radiation detection network, comprising: a central monitoring system having a data server connected to a wireless communications network; and a plurality of mobile radiation detection instruments for use by a plurality of mobile users in a geographic region so that the instruments ar
We claim: 1. A radiation detection network, comprising: a central monitoring system having a data server connected to a wireless communications network; and a plurality of mobile radiation detection instruments for use by a plurality of mobile users in a geographic region so that the instruments are widely and dynamically distributed in the geographic region, each instrument comprising: a mobile communications device having wireless means for communicating with the data server of the central monitoring system over the wireless communications network as the user moves about in the geographic region with the instrument; a radiation detector operably connected to said mobile communications device for measuring the individual energies of detected photons; a clock-calendar operably connected to said mobile communications device for determining the time-date associated with each detected photon; and a locator operably connected to said mobile communications device for determining the location of said instrument associated with each detected photon, said mobile communications device adapted to transmit data of the individual photon energies and the corresponding detection time-dates and detection locations associated with each to the data server of said central monitoring system, wherein said central monitoring system includes means for collectively analyzing said data received from the plurality of mobile radiation detection instruments to produce a background radiation map of the geographic region as a function of at least the time-date and location data accumulated in the course of user movement in the geographic region, and to detect, identify and/or track a radiation source(s) in the geographic region by determining correlations and deviations against the background radiation map. 2. The network of claim 1, wherein the mobile communications device of each instrument is a cellular phone. 3. The network of claim 1, wherein the wireless means of each instrument is adapted to access the Internet using a web-based protocol for data transmission. 4. The network of claim 1, wherein the wireless means of each instrument is adapted to access the Internet using an always-on mobile Internet connection system. 5. The network of claim 1, wherein said mobile communications device of each instrument is adapted to automatically transmit the data in real time to the data server of the central monitoring system. 6. The network of claim 1, wherein data is transmitted by said mobile communications device of each instrument to the data server of the central monitoring system in list mode to preserve full information content. 7. The network of claim 1, wherein data is encrypted for transmission by each instrument to the data server of the central monitoring system. 8. The network of claim 1, wherein said locator of each instrument is a coordinate locator based on an absolute coordinate system of location identification. 9. The network of claim 8, wherein said coordinate locator is a GPS receiver. 10. The network of claim 1, wherein said radiation detector of each instrument comprises a room temperature-operable solid state semiconductor material for measuring gamma-ray photons and/or neutrons. 11. The network of claim 10, wherein said radiation detector of each instrument is formed from a material selected from a group consisting of cadmium zinc telluride, cadmium telluride, mercuric iodide, lead iodide and aluminum antimonide. 12. The network of claim 10, wherein each radiation detection instrument further comprises a temperature sensor capable of measuring the temperature of the room temperature-operable solid state semiconductor material; and means for adjusting the overall gain of the semiconductor material as a function of time based on the temperature measured by said temperature sensor, to improve spectral resolution of said radiation detector. 13. The network of claim 10, wherein said radiation detector of each instrument is pixelated. 14. The network of claim 13, wherein pixels located in regions of the detector having imperfections are disabled to improve overall detector resolution. 15. The network of claim 1, wherein said radiation detector of each instrument is interconnected to a low-power VLSI (very large scale integration) readout. 16. The network of claim 1, wherein each instrument further comprises means for identifying isotopes from the detected photon energies. 17. The network of claim 16, wherein each instrument further comprises means for alerting a user upon isotope detection. 18. The network of claim 17, wherein for each instrument the means for alerting is adapted to be triggered when a predetermined level of radiation is detected. 19. The network of claim 18, wherein for each instrument the means for alerting is adapted not to be triggered when a benign isotope is identified, despite detection of the predetermined level of radiation. 20. A method of regional radiation monitoring comprising the steps of: widely distributing a plurality of mobile radiation detection instruments to mobile users in a geographic region so that the instruments are widely and dynamically distributed in the geographic region, with each instrument comprising a mobile communications device having wireless means for communicating over a wireless communications network as the user moves about in the geographic region with the instrument; a radiation detector operably connected to said mobile communications device for measuring the individual energies of detected photons; a clock-calendar operably connected to said mobile communications device for determining the time-date associated with each detected photon; and a locator operably connected to said mobile communications device for determining the location of said instrument associated with each detected photon; on a data server of a central monitoring system connected to the wireless communications network: receiving data of the individual photon energies and the corresponding detection time-date and detection location associated with each that are transmitted from the mobile communications devices of the plurality of radiation detection instruments in the geographic region; and collectively analyzing said received data to produce a background radiation map of the geographic region as a function of at least the time-date and location data accumulated in the course of user movement in the geographic region, and to detect, identify and/or track a radiation source(s) in the geographic region by determining correlations and deviations against the background radiation map. 21. The method of claim 20, wherein data is received from said instruments via the Internet using a web-based protocol for data transmission. 22. The method of claim 20, wherein data is received from said instruments via the Internet using an always-on mobile Internet connection system. 23. The method of claim 20, wherein data is received in real time by the data server of the central monitoring system due to the automatic data transmission from each instrument. 24. The method of claim 20, wherein data is received in list mode to preserve full information content. 25. The method of claim 20, wherein data is received encrypted. 26. The method of claim 20, further comprising, upon receiving radiation data indicating a radiation source, utilizing said mobile communications devices to communicate information to the users of said instruments related to reconfiguring the locations of the plurality of portable radiation detection instruments of the network. 27. The method of claim 20, further comprising, upon receiving radiation data indicating a consequence management scenario, utilizing said mobile communications devices to communicate consequence management efforts information to the users of said instruments. 28. The method of claim 20, wherein each radiation detection instrument further comprises a temperature sensor capable of measuring the temperature of the room temperature-operable solid state semiconductor material; and means for adjusting the overall gain of the semiconductor material as a function of time based on the temperature measured by said temperature sensor, to improve spectral resolution of said radiation detector. 29. A wide-area detection network, comprising: a central monitoring system having a data server connected to a wireless communications network; and a plurality of mobile detection instruments for use by a plurality of mobile users in a geographic region so that the instruments are widely and dynamically distributed in the geographic region, each instrument comprising: a mobile communications device having wireless means for communicating with the data server of the central monitoring system over the wireless communications network as the user moves about in the geographic region with the instrument; an application-specific sensor operably connected to said mobile communications device for measuring application-specific parameters, wherein the application is chosen from the group consisting of radiation, chemical, temperature, shock, motion, aural, and visual detections; a clock-calendar operably connected to said mobile communications device for determining the time-date associated with each unit of the application-specific parameter; and a locator operably connected to said mobile communications device for determining the location of said instrument associated with each unit of the application-specific parameter, said mobile communications device adapted to transmit data of the individual units of the application-specific parameter and the corresponding detection time-dates and detection locations associated with each to the data server of said central monitoring system, wherein said central monitoring system includes means for collectively analyzing said data received from the plurality of mobile detection instruments to produce an application specific background map of the geographic region as a function of at least the time-date and location data accumulated in the course of user movement in the geographic region, and to detect, identify and/or track an application specific source(s) in the geographic region by determining correlations and deviations against the application specific background map. 30. A method of regional monitoring comprising the steps of: widely distributing a plurality of mobile application-specific detection instruments to mobile users in a geographic region so that the instruments are widely and dynamically distributed in the geographic region and wherein the application is chosen from the group consisting of radiation, chemical, temperature, shock, motion, aural, and visual detections, with each instrument comprising a mobile communications device having wireless means for communicating over a wireless communications network as the user moves about in the geographic region with the instrument an application-specific sensor operably connected to said mobile communications device for measuring an application-specific parameter; a clock-calendar operably connected to said mobile communications device for determining the time-date associated with each unit of the application-specific parameter; and a locator operably connected to said mobile communications device for determining the location of said instrument associated with each unit of the application-specific parameter, on a data server of a central monitoring system connected to the wireless communications network: receiving data of the individual units of the application-specific parameter and the corresponding detection time-date and detection location associated with each that are transmitted from the mobile communications devices of the plurality of detection instruments in the geographic region; and collectively analyzing said received data to produce an application specific background map of the geographic region as a function of at least the time-date and location data accumulated in the course of user movement in the geographic region, and to detect, identify and/or track an application specific source(s) in the geographic region by determining correlations and deviations against the application specific background map.
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