Remote radiation dosimetry

Braunlich, Peter F; Tetzlaff, Wolfgang; Hegland, Joel E; Jones, Scott C

Title: Remote radiation dosimetry

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Abstract

Disclosed are methods and apparatus for remotely measuring radiation levels. Such are particularly useful for measuring relatively high levels or dosages of radiation being administered in radiation therapy. They are also useful for more general radiation level measurements where remote sensing from the remaining portions of the apparatus is desirable. The apparatus uses a beam generator, such as a laser beam, to provide a stimulating beam. The stimulating beam is preferably of wavelengths shorter than 6 microns, or more advantageously less than 2 microns. The stimulating beam is used to stimulate a remote luminescent sensor mounted in a probe which emits stored luminescent energy resulting from exposure of the sensor to ionizing radiation. The stimulating beam is communicated to the remote luminescent sensor via transmissive fiber which also preferably serves to return the emission from the luminescent sensor. The stimulating beam is advantageously split by a beam splitter to create a detector beam which is measured for power during a reading period during which the luminescent phosphor is read. The detected power is preferably used to control the beam generator to thus produce desired beam power during the reading period. The luminescent emission from the remote sensor is communicated tomore » « less

Inventors:

Braunlich, Peter F ^[1]; Tetzlaff, Wolfgang ^[1]; Hegland, Joel E ^[1]; Jones, Scott C ^[1]

Pullman, WA

Issue Date:: 1991-01-01

Research Org.:: International Sensor Technol

OSTI Identifier:: 867738

Patent Number(s):: 4999504

Assignee:: International Sensor Technology, Inc. (Pullman, WA)

Patent Classifications (CPCs):: A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61N - ELECTROTHERAPY

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION

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A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61N - ELECTROTHERAPY
A61N5/1048 - {Monitoring, verifying, controlling systems and methods}

G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
G01T1/105 - Read-out devices
G01T1/11 - Thermo-luminescent dosimeters {
G01T1/115 - Read-out devices

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DOE Contract Number:: AC03-85ER80226

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: remote; radiation; dosimetry; disclosed; methods; apparatus; remotely; measuring; levels; particularly; useful; relatively; dosages; administered; therapy; level; measurements; sensing; remaining; portions; desirable; beam; generator; laser; provide; stimulating; preferably; wavelengths; shorter; microns; advantageously; stimulate; luminescent; sensor; mounted; probe; emits; stored; energy; resulting; exposure; ionizing; communicated; via; transmissive; fiber; serves; return; emission; split; splitter; create; detector; measured; power; reading; period; phosphor; detected; control; produce; desired; suitable; filtering; selective; treatment; isolate; luminescent energy; remote sensing; radiation level; beam generator; beam splitter; laser beam; particularly useful; ionizing radiation; remaining portion; beam power; radiation therapy; sensor mounted; stored luminescent; remote sensor; radiation levels; measuring radiation; desired beam; energy resulting; luminescent emission; produce desired; selective treatment; radiation dosimetry; remotely measuring; measuring relative; luminescent phosphor; /250/

Citation Formats


                    Braunlich, Peter F, Tetzlaff, Wolfgang, Hegland, Joel E, and Jones, Scott C. Remote radiation dosimetry.  United States: N. p., 1991. 
        Web.

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                    Braunlich, Peter F, Tetzlaff, Wolfgang, Hegland, Joel E, & Jones, Scott C. Remote radiation dosimetry.  United States.

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                    Braunlich, Peter F, Tetzlaff, Wolfgang, Hegland, Joel E, and Jones, Scott C. Tue .  
        "Remote radiation dosimetry".  United States.  https://www.osti.gov/servlets/purl/867738.

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@article{osti_867738,

  title        = {Remote radiation dosimetry},

  author       = {Braunlich, Peter F and Tetzlaff, Wolfgang and Hegland, Joel E and Jones, Scott C},

  abstractNote = {Disclosed are methods and apparatus for remotely measuring radiation levels. Such are particularly useful for measuring relatively high levels or dosages of radiation being administered in radiation therapy. They are also useful for more general radiation level measurements where remote sensing from the remaining portions of the apparatus is desirable. The apparatus uses a beam generator, such as a laser beam, to provide a stimulating beam. The stimulating beam is preferably of wavelengths shorter than 6 microns, or more advantageously less than 2 microns. The stimulating beam is used to stimulate a remote luminescent sensor mounted in a probe which emits stored luminescent energy resulting from exposure of the sensor to ionizing radiation. The stimulating beam is communicated to the remote luminescent sensor via transmissive fiber which also preferably serves to return the emission from the luminescent sensor. The stimulating beam is advantageously split by a beam splitter to create a detector beam which is measured for power during a reading period during which the luminescent phosphor is read. The detected power is preferably used to control the beam generator to thus produce desired beam power during the reading period. The luminescent emission from the remote sensor is communicated to a suitable emission detector, preferably after filtering or other selective treatment to better isolate the luminescent emission.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1991},

  month        = {1}

}

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