Patents Assigned to Radiation Monitoring Devices
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Publication number: 20110121186Abstract: The present invention relates to quaternary compound scintillators and related devices and methods. The scintillators may include, for example, a quaternary compound, the quaternary compound having a first position, a second position, a third position, a fourth position; wherein the first position is Cs; the second position is Li; the third position is La or Lu; and the fourth position is Cl, Br, or I. In certain embodiments, the scintillator composition can further include a single dopant or mixture of dopants.Type: ApplicationFiled: November 22, 2010Publication date: May 26, 2011Applicant: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M. Higgins, Edgar V. Van Loef, Jaroslaw Glodo
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Patent number: 7939808Abstract: The present invention relates to quaternary compound scintillators and related devices and methods. The scintillators may include, for example, a mixed halide scintillator composition including at least two different CsLiLa halide compounds and a dopant. Related detection devices and methods are further included.Type: GrantFiled: March 16, 2009Date of Patent: May 10, 2011Assignee: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M. Higgins, Edgar V. Van Loef, Jaroslaw Glodo
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Publication number: 20110024635Abstract: Li-containing scintillator compositions, as well as related structures and methods are described. Radiation detection systems and methods are described which include a Cs2LiLn Halide scintillator composition.Type: ApplicationFiled: March 24, 2010Publication date: February 3, 2011Applicant: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M. Higgins, Edgar V. Van Loef, Jaroslaw Glodo, Rastgo Hawrami, Urmila Shirwadkar
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Publication number: 20110024634Abstract: Li-6 enriched Li-containing scintillator compositions, as well as related structures and methods. Radiation detection systems and methods include a Cs2LiLn Halide scintillator composition.Type: ApplicationFiled: November 23, 2009Publication date: February 3, 2011Applicant: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M. Higgins, Edgar V. Van Loef, Jaroslaw Glodo, Rastgo Hawrami, Urmila Shirwadkar
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Patent number: 7854961Abstract: Scintillation materials of this invention have an alkali halide host material, a (first) scintillation dopant of various types, and a variety of second dopants (co-dopants). In another embodiment, the scintillation materials of this invention have an alkali halide host material, a (first) scintillation dopant of various types, a variety of second dopants (co-dopants), and a variety of third dopants (co-dopants). Co-dopants of this invention are capable of providing a second auxiliary luminescent cation dopant, capable of introducing an anion size and electronegativity mismatch, capable of introducing a mismatch of anion charge, or introducing a mismatch of cation charge in the host material.Type: GrantFiled: January 3, 2007Date of Patent: December 21, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Charles Brecher, Vivek Nagarkar
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Patent number: 7847262Abstract: The present invention relates to quaternary compound scintillators and related devices and methods. The scintillators may include, for example, a quaternary compound, the quaternary compound having a first position, a second position, a third position, a fourth position; wherein the first position is Cs; the second position is Li; the third position is La or Lu; and the fourth position is Cl, Br, or I. In certain embodiments, the scintillator composition can further include a single dopant or mixture of dopants.Type: GrantFiled: January 29, 2010Date of Patent: December 7, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M. Higgins, Edgar V. Van Loef, Jaroslaw Glodo
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Patent number: 7828926Abstract: The present invention provides assemblies and methods for selectively removing resin coatings from a radiation detector. A method includes positioning a cutting edge on a resin coating formed on a radiation detector. The method further includes positioning a bonding member on the resin coating, applying a force to the bonding member such that a portion of the resin coating is pulled away from the radiation detector, and cutting the resin coating so as to detach the portion of the resin coating pulled away from the detector, thereby selectively removing the portion of the resin coating from the radiation detector.Type: GrantFiled: April 4, 2006Date of Patent: November 9, 2010Assignee: Radiation Monitoring Devices, Inc.Inventor: Valeriy Gaysinskiy
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Publication number: 20100268074Abstract: The present invention provides strontium halide scintillators as well as related radiation detection devices, imaging systems, and methods.Type: ApplicationFiled: July 2, 2009Publication date: October 21, 2010Applicant: Radiation Monitoring Devices, Inc.Inventors: Edgar V. Van Loef, Kanai S. Shah, Jarek Glodo, Cody M. Wilson
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Patent number: 7772558Abstract: The present invention provides radiation detectors and related methods, including methods of making radiation detectors and devices, as well as methods of performing radiation detection. A radiation detector includes a first resin coating formed on at least a surface of the substrate and an additional layer, such as a scintillator layer, formed on the resin coating.Type: GrantFiled: March 29, 2006Date of Patent: August 10, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Vivek Nagarkar, Valeriy Gaysinskiy
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Patent number: 7755054Abstract: Lutetium gadolinium halide scintillators, devices and methods, including a composition having the formula LuxGd(1-x)Halide and a dopant.Type: GrantFiled: December 12, 2008Date of Patent: July 13, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M Higgins, Edgar V Van Loef, Jaroslaw Glodo
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Patent number: 7723687Abstract: The present invention provides an imaging scintillation radiation detector comprising a doped lanthanide halide microcolumnar scintillator formed on a substrate. The scintillation radiation detectors of the invention typically comprise a substrate. The substrate can be either opaque or optically transparent. In a particular embodiment of the present invention the microcolumnar scintillator is a lanthanide-halide (LaHalide3) doped with at least cerium. The invention also provides methods for the vapor deposition of a doped microcolumnar lanthanide-halide scintillator film.Type: GrantFiled: July 3, 2007Date of Patent: May 25, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Vivek Nagarkar, Valeriy Gaysinskiy
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Patent number: 7710131Abstract: A non-contact circuit analyzer includes a computer system having a memory with circuit parameters stored therein wherein the circuit parameters specify acceptable operating characteristics for a circuit. The analyzer further includes a magnetic field detector coupled to the computer and configured to detect the magnetic field emitted from the circuit while operational. The magnetic field relates to current in the circuit. The analyzer further includes an electric field sensor coupled to the computer and configured to detect the electric field emitted from the circuit while operational. The electric field relates to voltage and/or operating frequency in the circuit. The magnetic field detector and the electric field detector are configured to send signals for the detected fields to the computer system. The computer system is configured to compare the signals to the circuit parameters to determine whether the circuit is operating within the circuit parameters.Type: GrantFiled: August 18, 2007Date of Patent: May 4, 2010Assignee: Radiation Monitoring Devices, Inc.Inventor: Tim Tiernan
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Patent number: 7700920Abstract: The present invention relates to a microcolumnar zinc selenide (ZnSe) scintillator and uses thereof, and methods of fabrication of microcolumnar scintillators using sublimation-based deposition techniques. In one embodiment, the present invention includes a scintillator including a microcolumnar scintillator material including zinc selenide (ZnSe) and a dopant. The microcolumnar scintillators of the present invention provide improved light channeling and resolution characteristics, thereby providing high spatial resolution, highly efficient scintillators.Type: GrantFiled: August 20, 2007Date of Patent: April 20, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Vivek Nagarkar, Valeriy Gaysinskiy
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Patent number: 7696482Abstract: High spatial resolution radiation detectors, assemblies and methods including methods of making the radiation detectors and using the detectors in performing radiation detection. A radiation detector of the invention includes a substrate, a scintillator layer comprising a microcolumnar scintillator, and an optically transparent outer cover layer, the scintillator layer disposed between the substrate and the cover layer with a gap disposed between at least a portion of the cover layer and the scintillator layer.Type: GrantFiled: June 2, 2006Date of Patent: April 13, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Vivek Nagarkar, Valeriy Gaysinskiy
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Patent number: 7692156Abstract: The present invention provides radiation detectors and methods, including radiation detection devices having beam-oriented scintillators capable of high-performance, high resolution imaging, methods of fabricating scintillators, and methods of radiation detection. A radiation detection device includes a beam-oriented pixellated scintillator disposed on a substrate, the scintillator having a first pixel having a first pixel axis and a second pixel having a second pixel axis, wherein the first and second axes are at an angle relative to each other, and wherein each axis is substantially parallel to a predetermined beam direction for illuminating the corresponding pixel.Type: GrantFiled: August 23, 2007Date of Patent: April 6, 2010Assignee: Radiation Monitoring Devices, Inc.Inventor: Vivek Nagarkar
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Patent number: 7655919Abstract: The present invention relates to quaternary compound scintillators and related devices and methods. The scintillators may include, for example, a quaternary compound, the quaternary compound having a first position, a second position, a third position, a fourth position; wherein the first position is Cs; the second position is Li; the third position is La or Lu; and the fourth position is Cl, Br, or I. In certain embodiments, the scintillator composition can further include a single dopant or mixture of dopants.Type: GrantFiled: November 9, 2007Date of Patent: February 2, 2010Assignee: Radiation Monitoring Devices, Inc.Inventors: Kanai S. Shah, William M Higgins, Edgar V Van Loef, Jaroslaw Glodo
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Patent number: 7612342Abstract: The present application discloses methods and devices for increasing the light output of a scintillator. Using the methods of the present disclosure, a very high intensity electric field is applied to a scintillator exposed to ionizing radiation and provides light outputs that far exceeds those previously obtained in the art. The light output gains are very high, on the order of 10 to 100 times those obtained with prior methods, and will make it possible to achieve sufficient brightness to enable the use of a cathode ray tube or a field emission display in new devices. In the field of x-ray imaging, a bright scintillator will have tremendous potential in many important applications, such as computed tomography (CT), SPECT, diagnostic digital radiology, and the like.Type: GrantFiled: September 27, 2006Date of Patent: November 3, 2009Assignee: Radiation Monitoring Devices, Inc.Inventor: Vivek V. Nagarkar
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Publication number: 20090187096Abstract: The present invention generally provides improved devices, systems, and methods for measuring materials with NMR and/or MRI. Exemplary embodiments provide a sensor array for NMR mapping of the material. For example tissue can be measured with the sensor array mounted on a probe body having a distal portion which can be inserted through a minimally invasive aperture. While many tissues can be measured and/or diagnosed, one exemplary embodiment includes a probe adapted for insertion into a lumen of a blood vessel. The sensor array can provide improved spatial resolution of tissue and/or tissue structures positioned near the sensor array to diagnose potentially life threatening diseases, for example a fibrous cap covering a vulnerable plaque. In specific embodiments, the sensors are attached to an expandable member, for example a balloon, which can be inflated to urge the probe sensors radially outward to position the sensors near the tissue structures.Type: ApplicationFiled: April 7, 2009Publication date: July 23, 2009Applicant: Radiation Monitoring Devices, Inc.Inventors: Timothy C. Tiernan, John Chetley Ford
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Patent number: 7535228Abstract: The present invention generally provides improved devices, systems, and methods for measuring materials with NMR and/or MRI. Exemplary embodiments provide a sensor array for NMR mapping of the material. For example tissue can be measured with the sensor array mounted on a probe body having a distal portion which can be inserted through a minimally invasive aperture. While many tissues can be measured and/or diagnosed, one exemplary embodiment includes a probe adapted for insertion into a lumen of a blood vessel. The sensor array can provide improved spatial resolution of tissue and/or tissue structures positioned near the sensor array to diagnose potentially life threatening diseases, for example a fibrous cap covering a vulnerable plaque. In specific embodiments, the sensors are attached to an expandable member, for example a balloon, which can be inflated to urge the probe sensors radially outward to position the sensors near the tissue structures.Type: GrantFiled: March 21, 2006Date of Patent: May 19, 2009Assignee: Radiation Monitoring Devices, Inc.Inventors: Timothy C. Tiernan, John Chetley Ford
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Patent number: 7504634Abstract: The present invention concerns very fast scintillator materials comprising lutetium iodide doped with Cerium Lu1-xI3:Cex; LuI3:Ce). The LuI3 scintillator material has surprisingly good characteristics including high light output, high gamma ray stopping efficiency, fast response, low cost, good proportionality, and minimal afterglow that the material is useful for gamma ray spectroscopy, medical imaging, nuclear and high energy physics research, diffraction, non-destructive testing, nuclear treaty verification and safeguards, and geological exploration. The timing resolution of the scintillators of the present invention provide compositions capable of resolving the position of an annihilation event within a portion of a human body cross-section.Type: GrantFiled: December 21, 2006Date of Patent: March 17, 2009Assignee: Radiation Monitoring Devices, Inc.Inventor: Kanai S. Shah