Target unit with ceramic capsule for producing cu-67 radioisotope

Ehst, David A.; Willit, James L.

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A01 - agriculture
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Title: Target unit with ceramic capsule for producing cu-67 radioisotope

Abstract

A target unit for producing Cu67 radioisotope is described herein, and comprises a cage body releasably coupled to a screw-on cap; and a ceramic capsule containing a solid Zn68 target ingot and having one open end and one closed end and defining an interior chamber for the target ingot. The ceramic capsule is releasably contained between the cage body and the screw-on cap with a lid disposed on the open end of the capsule and a washer positioned between the lid and the screw-on cap. The screw-on cap and the washer provide a water-tight seal between the lid and the capsule. The interior of the capsule is in intimate physical contact with the target ingot; and the Zn68 of the target ingot is free of traces of residual oxygen that interfere with contact of the Zn68 to the capsule.

Inventors:: Ehst, David A.; Willit, James L.

Issue Date:: 2021-06-29

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1824129

Patent Number(s):: 11049628

Application Number:: 16/166,441

Assignee:: UChicago Argonne, LLC (Chicago, IL)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

G - PHYSICS G21 - NUCLEAR PHYSICS G21G - CONVERSION OF CHEMICAL ELEMENTS

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D7/00 - Sublimation

G - PHYSICS G21 - NUCLEAR PHYSICS G21G - CONVERSION OF CHEMICAL ELEMENTS
G21G1/001 - {Recovery of specific isotopes from irradiated targets}
G21G1/12 - by electromagnetic irradiation, e.g. with gamma or X-rays
G21G2001/0094 - {Other isotopes not provided for in the groups listed above}

G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
G21K5/08 - Holders for targets or for other objects to be irradiated

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
H05H6/00 - Targets for producing nuclear reactions

Show less

DOE Contract Number:: AC02-06CH11357

Resource Type:: Patent

Resource Relation:: Patent File Date: 10/22/2018

Country of Publication:: United States

Language:: English

Subject:: 62 RADIOLOGY AND NUCLEAR MEDICINE

Citation Formats


                    Ehst, David A., and Willit, James L. Target unit with ceramic capsule for producing cu-67 radioisotope.  United States: N. p., 2021. 
        Web.

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                    Ehst, David A., & Willit, James L. Target unit with ceramic capsule for producing cu-67 radioisotope.  United States.

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                    Ehst, David A., and Willit, James L. Tue .  
        "Target unit with ceramic capsule for producing cu-67 radioisotope".  United States.  https://www.osti.gov/servlets/purl/1824129.

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@article{osti_1824129,

  title        = {Target unit with ceramic capsule for producing cu-67 radioisotope},

  author       = {Ehst, David A. and Willit, James L.},

  abstractNote = {A target unit for producing Cu67 radioisotope is described herein, and comprises a cage body releasably coupled to a screw-on cap; and a ceramic capsule containing a solid Zn68 target ingot and having one open end and one closed end and defining an interior chamber for the target ingot. The ceramic capsule is releasably contained between the cage body and the screw-on cap with a lid disposed on the open end of the capsule and a washer positioned between the lid and the screw-on cap. The screw-on cap and the washer provide a water-tight seal between the lid and the capsule. The interior of the capsule is in intimate physical contact with the target ingot; and the Zn68 of the target ingot is free of traces of residual oxygen that interfere with contact of the Zn68 to the capsule.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2021},

  month        = {6}

}

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Similar Records in DOE Patents and OSTI.GOV collections:

Methods for producing Cu-67 radioisotope with use of a ceramic capsule for medical applications

Patent Ehst, David A.; Willit, James L.

The present invention provides a method for producing Cu67 radioisotope suitable for use in medical applications. The method comprises irradiating a metallic zinc-68 (Zn68) target within a sealed ceramic capsule with a high energy gamma ray beam. After irradiation, the Cu67 is isolated from the Zn68 by any suitable method (e.g. chemical and or physical separation). In a preferred embodiment, the Cu67 is isolated by sublimation of the zinc in a ceramic sublimation tube to afford a copper residue containing Cu67. The Cu67 can be further purified by chemical means.
Full Text Available
Methods for producing Cu-67 radioisotope with use of a ceramic capsule for medical applications

Patent Ehst, David A.; Willit, James L.

The present invention provides a method for producing Cu67 radioisotope suitable for use in medical applications. The method comprises irradiating a metallic zinc-68 (Zn68) target within a sealed ceramic capsule with a high energy gamma ray beam. After irradiation, the Cu67 is isolated from the Zn68 by any suitable method (e.g. chemical and or physical separation). In a preferred embodiment, the Cu67 is isolated by sublimation of the zinc in a ceramic sublimation tube to afford a copper residue containing Cu67. The Cu67 can be further purified by chemical means.
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Methods for making and processing metal targets for producing Cu-67 radioisotope for medical applications

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The present invention provides a method for producing Cu67 radioisotope suitable for use in medical applications. The method comprises irradiating a metallic zinc-68 (Zn68) target with a high energy gamma ray beam. After irradiation, the Cu67 is isolated from the Zn68 by any suitable method (e.g., chemical and/or physical separation). In a preferred embodiment, the Cu67 is isolated by sublimation of the zinc (e.g., at about 500-700° C. under reduced pressure) to afford a copper residue containing Cu67. The Cu67 can be further purified by chemical means (i.e., dissolution in acid, followed by ion exchange).
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A method of producing carrier-free .sup.67 Cu by proton spallation combined with subsequent chemical separation and purification is disclosed. A target consisting essentially of pressed zinc oxide is irradiated with a high energy, high current proton beam to produce a variety of spallogenic nuclides, including .sup.67 Cu and other copper isotopes. The irradiated target is dissolved in a concentrated acid solution to which a palladium salt is added. In accordance with the preferred method, the spallogenic copper is twice coprecipitated with palladium, once with metallic zinc as the precipitating agent and once with hydrogen sulfide as the precipitating agent. Themore » « less
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Title: Target unit with ceramic capsule for producing cu-67 radioisotope

Abstract

Citation Formats

Process of Casting Titanium and Related Metal and Alloys patent, September 1957

Target grid assembly patent, March 2002

Devices and methods for melting materials patent, October 2007

Method for Direct Production of 99mTc-Technetium 99 Metastable from Low Energy Accelerators patent-application, January 2011

Method and generator for producing radioactive lead-212 patent, August 1991

Production of radioisotopes with a high specific activity by isotopic conversion patent, March 2001

Extrusion-resistant seal assembly patent, June 1995

Process for extraction of metals from ores or industrial materials patent-application, February 2006

Separation Metals patent, December 1968

Polymer beads containing an immobilized extractant for sorbing metals from solution patent, January 1994

Devices and methods for melting materials patent-application, September 2014

Production of radioisotopes with a high specific activity by isotopic conversion patent, September 1999

Radiation Emitting Target Cooler patent, May 1960

Radioactive waste material melter apparatus patent, April 1990

Melting and Casting of Titanium patent, December 1968

Sublimation purifying method and apparatus patent-application, February 2003

Method of producing molybdenum-99 patent, July 1998

Production of high specific activity copper -67 patent, December 2002

Nanostructured Target for Isotope Production patent-application, September 2011

Glass gob drop guide funnel assembly patent, March 1995

Process for Separating Iodine-132 from Fission Products patent, June 1960

Radioisotope Fuel Capsule patent, November 1971

Methods for making and processing metal targets for producing Cu-67 radioisotope for medical applications patent-application, February 2010

Process for the production of radioisotopes of selenium patent, November 1999

Process of Casting Titanium and Related Metal and Alloys
patent, September 1957

Target grid assembly
patent, March 2002

Devices and methods for melting materials
patent, October 2007

Method for Direct Production of 99mTc-Technetium 99 Metastable from Low Energy Accelerators
patent-application, January 2011

Method and generator for producing radioactive lead-212
patent, August 1991

Production of radioisotopes with a high specific activity by isotopic conversion
patent, March 2001

Extrusion-resistant seal assembly
patent, June 1995

Process for extraction of metals from ores or industrial materials
patent-application, February 2006

Separation Metals
patent, December 1968

Polymer beads containing an immobilized extractant for sorbing metals from solution
patent, January 1994

Devices and methods for melting materials
patent-application, September 2014

Production of radioisotopes with a high specific activity by isotopic conversion
patent, September 1999

Radiation Emitting Target Cooler
patent, May 1960

Radioactive waste material melter apparatus
patent, April 1990

Melting and Casting of Titanium
patent, December 1968

Sublimation purifying method and apparatus
patent-application, February 2003

Method of producing molybdenum-99
patent, July 1998

Production of high specific activity copper -67
patent, December 2002

Nanostructured Target for Isotope Production
patent-application, September 2011

Glass gob drop guide funnel assembly
patent, March 1995

Process for Separating Iodine-132 from Fission Products
patent, June 1960

Radioisotope Fuel Capsule
patent, November 1971

Methods for making and processing metal targets for producing Cu-67 radioisotope for medical applications
patent-application, February 2010

Process for the production of radioisotopes of selenium
patent, November 1999