Resumes
Resumes
David Rotsch Phones & Addresses
-
Oak Ridge, TN
-
Lenoir City, TN
-
2461 Claridge Ln, Montgomery, IL 60538 (847) 445-6071
-
Lake Villa, IL
-
Columbia, MO
-
Iowa City, IA
-
Charleston, IL
-
Lake Villa, IL
-
Juneau, PA
Publications
Us Patents
Process For The Separation And Purification Of Medical Isotopes
View pageUS Patent:
20190338394, Nov 7, 2019
Filed:
Jul 3, 2019
Appl. No.:
16/502922
Inventors:
- Chicago IL, US
David Alan Rotsch - Montgomery IL, US
David Alan Rotsch - Montgomery IL, US
Assignee:
UCHICAGO ARGONNE, LLC - Chicago IL
International Classification:
C22B 60/02
Abstract:
The invention provides a method for isolating medical isotopes, the method having the steps of dissolving titanium nuclear targets to create a solution; contacting the solution with a resin so as to retain the isotopes on the resin and generate an eluent containing titanium; contacting the isotope-containing resin with acid of a first concentration to remove impurities from the resin; and contacting the isotope-containing resin with an acid of a second concentration to remove isotope from the resin.
Compact Assembly For Production Of Medical Isotopes Via Photonuclear Reactions
View pageUS Patent:
20190103198, Apr 4, 2019
Filed:
Sep 28, 2018
Appl. No.:
16/146975
Inventors:
- Chicago IL, US
Michael Alexander Brown - Chicago IL, US
David A. Rotsch - Montgomery IL, US
Sergey D. Chemerisov - Lisle IL, US
Walter F. Henning - St. Charles IL, US
Michael Alexander Brown - Chicago IL, US
David A. Rotsch - Montgomery IL, US
Sergey D. Chemerisov - Lisle IL, US
Walter F. Henning - St. Charles IL, US
Assignee:
UCHICAGO ARGONNE, LLC - Chicago IL
International Classification:
G21G 1/00
G21G 1/10
G21G 1/10
Abstract:
The invention provides a method for generating medical isotopes, the method comprising contacting a primary radiation beam with a converter for a time sufficient to produce a secondary beam of gamma particles, and contacting the beam of gamma particles to a target, where the cross section dimension of the beam of gamma particles is similar to the cross section dimension of the target. Both the converter and target are small in diameter and very closely spaced. Also provided is a system for producing medical isotopes, the device comprising a housing having a first upstream end and a second downstream end, a radiotransparent channel (collimator) with a first upstream end and a downstream end, wherein the upstream end is adapted to receive a radiation beam, a target positioned downstream of the downstream end of the channel and coaxially aligned with the channel, wherein the target has a cross section that is similar to the cross section of the channel.
Triple Containment Targets For Particle Irradiation
View pageUS Patent:
20190080813, Mar 14, 2019
Filed:
Sep 14, 2017
Appl. No.:
15/704259
Inventors:
- Chicago IL, US
David A. Rotsch - Montgomery IL, US
Sergey D. Chemerisov - Lisle IL, US
James L. Bailey - Hinsdale IL, US
David A. Rotsch - Montgomery IL, US
Sergey D. Chemerisov - Lisle IL, US
James L. Bailey - Hinsdale IL, US
Assignee:
UCHICAGO ARGONNE, LLC - Chicago IL
International Classification:
G21K 5/08
C12Q 1/24
B01L 3/00
C12Q 1/24
B01L 3/00
Abstract:
The invention provides a system for containing irradiated particles, the system having a housing having a closed upstream end and an open downstream end; an axially disposed tunnel extending from the downstream end to the upstream end, wherein longitudinally extending regions of the tunnel define a plurality of threaded surfaces; a sample cup positioned within the tunnel and proximal to the closed upstream end; threaded plugs matingly received by the threaded surfaces so as to provide at least one seal between the sample cup and the atmosphere external of the housing; and a plurality of deformable substrates disposed between the plugs.
Process For The Separation And Purification Of Scandium Medical Isotopes
View pageUS Patent:
20180051359, Feb 22, 2018
Filed:
Aug 22, 2016
Appl. No.:
15/243002
Inventors:
Michael Alexander BROWN - Chicago IL, US
David Alan ROTSCH - Montgomery IL, US
David Alan ROTSCH - Montgomery IL, US
Assignee:
UCHICAGO ARGONNE, LLC - Chicago IL
International Classification:
C22B 61/00
C22B 7/00
C22B 1/00
C22B 7/00
C22B 1/00
Abstract:
The invention provides a method for isolating scandium, the method having the steps of dissolving titanium nuclear targets to create a solution; contacting the solution with a resin so as to retain scandium on the resin and generate an eluent containing titanium; contacting the scandium-containing resin with acid of a first concentration to remove impurities from the resin; and contacting the scandium-containing resin with an acid of a second concentration to remove scandium from the resin.
Recovery And Purification Of Transition Elements
View pageUS Patent:
20160333442, Nov 17, 2016
Filed:
Aug 14, 2015
Appl. No.:
14/826334
Inventors:
Peter Tkac - Naperville IL, US
David A. Rotsch - Montgomery IL, US
David A. Rotsch - Montgomery IL, US
Assignee:
UCHICAGO ARGONNE, LLC - Chicago IL
International Classification:
C22B 34/34
C22B 7/00
C22B 7/00
Abstract:
The invention provides a continuous method for extracting transition metal, the method comprising: supplying a spent generator liquor comprising transition metal in highly alkaline solution; mixing the liquor with acid thereby generating a solution, wherein the transition metal resides within the solution; combining the solution with an organic liquid comprising tributyl phosphate or other neutral extractant to extract the transition metal within the organic liquid; washing the extracted transition metal in the organic liquid with acid so as to remove non-transition-metal salts from the organic liquid phase; and stripping the washed transition metal loadedorganic liquid phase with hydroxide, water or complexing agent to remove the transition metal from the organic phase.