Active dosimeter systems for real-time radiation dose measurements

• US 10,365,378 B2
• Filed: 02/13/2017
• Issued: 07/30/2019
• Est. Priority Date: 02/29/2016
• Status: Active Grant

• Current Assignee: Thermo Eberline LLC (Thermo Fisher Scientific Incorporated)
• Original Assignee: Thermo Eberline LLC (Thermo Fisher Scientific Incorporated)
• Inventors: Nelson, Greg Holger, Beeson, Phillip Edward, Laing, Alan John
• Primary Examiner(s): Green, Yara B
• Application Number:
  US15/430,867
• Publication Number:
  US 20170248703A1
• Time in Patent Office: 897 Days
• CPC Class Codes: G01T 1/02 Dosimeters G01T1/15 takes precedence
• CPC Class Codes: G01T 1/026 Semiconductor dose-rate meters
• CPC Class Codes: G01T 7/00 Details of radiation-measuring instruments

Abstract

An embodiment of an active dosimeter system for detecting and communicating a radiation dose in real time is described that comprises a peripheral detector configured to be worn on an extremity or a head region of a user that includes a radiation sensor to detect ionizing radiation; a processor to determine a level of the ionizing radiation; and a wireless device to send a transmission comprising the detected level of the ionizing radiation; where the determination of the level of ionizing radiation and the transmission occur in real-time; and a receiver located in close proximity to the user that receives the transmission, and comprises an interface that informs the user of the detected level of the ionizing radiation.

Claims

1. An active dosimeter system for detecting and communicating a radiation dose in real time, comprising:

a peripheral detector configured to wear on an extremity or a head region of a user comprising;

a radiation sensor configured to detect ionizing radiation;

a processor configured to determine a level of the ionizing radiation; and

a wireless device configured to send a transmission comprising the detected level of the ionizing radiation;

wherein the determination of the level of ionizing radiation and the transmission occur in real-time; and

a whole body dosimeter worn by the user and configured to receive the transmission comprising the detected level of the ionizing radiation from the peripheral detector, wherein the whole body dosimeter combines the level of ionizing radiation detected by the peripheral detector with a level of ionizing radiation detected by the whole-body dosimeter in real-time and comprises an interface that informs the user of the combined level of the ionizing radiation.

2. The system of claim 1, wherein:

the radiation sensor comprises a semiconductor crystal.

3. The system of claim 1, wherein:

the radiation sensor comprises a PiN diode.

4. The system of claim 1, wherein:

the radiation sensor comprises a MOSFET.

5. The system of claim 1, wherein:

the peripheral detector comprises a compact power source.

6. The system of claim 5, wherein:

the compact power source comprises a rechargeable battery.

7. The system of claim 6, wherein:

the rechargeable battery comprises a NiMH battery.

8. The system of claim 6, wherein:

the rechargeable battery comprises a Li battery.

9. The system of claim 5, wherein:

the compact power source comprises a high value capacitor.

10. The system of claim 1, wherein:

the peripheral detector is configured as a ring.

11. The system of claim 1, wherein:

the peripheral detector is configured as a bracelet.

12. The system of claim 1, wherein:

the peripheral detector is configured as a pair of glasses.

13. The system of claim 1, wherein:

the receiver is worn or carried by the user.

14. The system of claim 1, wherein:

the receiver is located within a range where the user can unambiguously identify a signal from the interface.

15. The system of claim 14, wherein:

the receiver is a smart phone or a tablet.

16. The system of claim 14, wherein:

the receiver comprises a wearable device with an interface that informs the user of radiation events.

17. The system of claim 16, wherein:

the wearable device comprises a ring.

18. The system of claim 16, wherein:

the wearable device comprises a bracelet.

19. The system of claim 16, wherein:

the wearable device comprises a wristwatch.

20. The system of claim 1, further comprising:

a wear sensor configured to detect when the sensor is worn by the user.

21. The system of claim 20, wherein:

the wear sensor is configured to detect temperature.

22. The system of claim 20, wherein:

the wear sensor is configured to detect electrical activity.

23. The system of claim 20, wherein:

the wear sensor is configured to detect bodily secretions.

24. The system of claim 20, wherein:

the wear sensor comprises an accelerometer.

25. The system of claim 20, wherein:

the wear sensor is configured to detect a specific position of the sensor on the user.

26. The system of claim 25, wherein:

the wear sensor utilizes RSSI technology.

27. The system of claim 20, wherein:

the wear sensor comprises a pressure switch.

28. The system of claim 1, wherein:

the extremity is a finger, hand or wrist.

29. The system of claim 1, wherein:

the extremity is a foot, ankle, or leg.

30. The system of claim 1, wherein:

the head region comprises an eye.

31. The system of claim 1, further comprising:

a central base station configured to engage with the peripheral detector and the receiver.

32. The system of claim 1, wherein:

the peripheral detector or the receiver comprises an access control element that enables the user to enter a location.

33. The system of claim 32, wherein:

the detected level of the ionizing radiation is correlated with the location.

34. The system of claim 33, wherein:

the detected level of the ionizing radiation at the location is integrated over a period of time.

35. The system of claim 34, wherein:

the period of time correlates to a period that the user spends in the location.

36. The system of claim 1, wherein:

the combined level of ionizing radiation from peripheral detector and whole-body dosimeter is stored as multiple dose variables in the user'"'"'s dose record.