High temperature ion source for an on-line isotope separator

Mlekodaj, Ronald L

Title: High temperature ion source for an on-line isotope separator

Full Record
Other Related Research

Abstract

A reduced size ion source for on-line use with a cyclotron heavy-ion beam is provided. A sixfold reduction in source volume while operating with similar input power levels results in a 2000.degree. C. operating temperature. A combined target/window normally provides the reaction products for ionization while isolating the ion source plasma from the cyclotron beam line vacuum. A graphite felt catcher stops the recoiling reaction products and releases them into the plasma through diffusion and evaporation. Other target arrangements are also possible. A twenty-four hour lifetime of unattended operation is achieved, and a wider range of elements can be studied than was heretofore possible.

Inventors:

Mlekodaj, Ronald L ^[1]

Oak Ridge, TN

Issue Date:: 1979-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 863365

Patent Number(s):: 4157471

Assignee:: United States Department of Energy (Washington, DC)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

Show more

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J27/20 - using particle {beam} bombardment, e.g. ionisers

Show less

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: temperature; source; on-line; isotope; separator; reduced; size; cyclotron; heavy-ion; beam; provided; sixfold; reduction; volume; operating; similar; input; power; levels; results; 2000; degree; combined; target; window; normally; provides; reaction; products; ionization; isolating; plasma; line; vacuum; graphite; catcher; stops; recoiling; releases; diffusion; evaporation; arrangements; twenty-four; hour; lifetime; unattended; operation; achieved; wider; range; elements; studied; heretofore; beam line; input power; power levels; power level; reaction product; operating temperature; reaction products; reduced size; wider range; isotope separator; cyclotron beam; line vacuum; /250/

Citation Formats


                    Mlekodaj, Ronald L. High temperature ion source for an on-line isotope separator.  United States: N. p., 1979. 
        Web.

Copy to clipboard


                    Mlekodaj, Ronald L. High temperature ion source for an on-line isotope separator.  United States.

Copy to clipboard


                    Mlekodaj, Ronald L. Mon .  
        "High temperature ion source for an on-line isotope separator".  United States.  https://www.osti.gov/servlets/purl/863365.

Copy to clipboard


                    
@article{osti_863365,

  title        = {High temperature ion source for an on-line isotope separator},

  author       = {Mlekodaj, Ronald L},

  abstractNote = {A reduced size ion source for on-line use with a cyclotron heavy-ion beam is provided. A sixfold reduction in source volume while operating with similar input power levels results in a 2000.degree. C. operating temperature. A combined target/window normally provides the reaction products for ionization while isolating the ion source plasma from the cyclotron beam line vacuum. A graphite felt catcher stops the recoiling reaction products and releases them into the plasma through diffusion and evaporation. Other target arrangements are also possible. A twenty-four hour lifetime of unattended operation is achieved, and a wider range of elements can be studied than was heretofore possible.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1979},

  month        = {1}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Ion current detector for high pressure ion sources for monitoring separations

Patent Smith, Richard D [Richland, WA]; Wahl, Jon H [Richland, WA]; Hofstadler, Steven A [Richland, WA]

The present invention relates generally to any application involving the monitoring of signal arising from ions produced by electrospray or other high pressure (>100 torr) ion sources. The present invention relates specifically to an apparatus and method for the detection of ions emitted from a capillary electrophoresis (CE) system, liquid chromatography, or other small-scale separation methods. And further, the invention provides a very simple diagnostic as to the quality of the separation and the operation of an electrospray source.
Full Text Available
High temperature bias line stabilized current sources

Patent Patterson, III, Raymond B. (Melbourne, FL)

A compensation device for the base of emitter follower configured bipolar transistors becoming operable at elevated temperatures including a bipolar transistor of a geometry of not more than half the geometry of the bipolar emitter follower having its collector connected to the base of the emitter follower and its base and emitter connected together and to the emitter of the emitter follower.
Full Text Available
Refractory lining system for high wear area of high temperature reaction vessel

Patent Hubble, David H [Export, PA]; Ulrich, Klaus H [Duisburg, DE]

A refractory-lined high temperature reaction vessel comprises a refractory ring lining constructed of refractory brick, a cooler, and a heat transfer medium disposed between the refractory ring lining and the cooler. The refractory brick comprises magnesia (MgO) and graphite. The heat transfer medium contacts the refractory brick and a cooling surface of the cooler, and is composed of a material that accommodates relative movement between the refractory brick and the cooler. The brick is manufactured such that the graphite has an orientation providing a high thermal conductivity in the lengthwise direction through the brick that is higher than the thermalmore » « less
Full Text Available
Refractory lining system for high wear area of high temperature reaction vessel

Patent Hubble, David H [Export, PA]; Ulrich, Klaus H [Duisburg, DE]

A refractory-lined high temperature reaction vessel comprises a refractory ring lining constructed of refractory brick, a cooler, and a heat transfer medium disposed between the refractory ring lining and the cooler. The refractory brick comprises magnesia (MgO) and graphite. The heat transfer medium contacts the refractory brick and a cooling surface of the cooler, and is composed of a material that accommodates relative movement between the refractory brick and the cooler. The brick is manufactured such that the graphite has an orientation providing a high thermal conductivity in the lengthwise direction through the brick that is higher than the thermalmore » « less
Full Text Available
Negative ion source with low temperature transverse divergence optical system

Patent Whealton, John H [Oak Ridge, TN]; Stirling, William L [Oak Ridge, TN]

A negative ion source is provided which has extremely low transverse divergence as a result of a unique ion focusing system in which the focal line of an ion beam emanating from an elongated, concave converter surface is outside of the ion exit slit of the source and the path of the exiting ions. The beam source operates with a minimum ion temperature which makes possible a sharply focused (extremely low transverse divergence) ribbon like negative ion beam.
Full Text Available

Similar Records