Apparatus for producing cryogenic inertially driven fusion targets

Title: Apparatus for producing cryogenic inertially driven fusion targets

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Abstract

A new technique for producing uniform layers of solid DT on microballoon surfaces. Local heating of the target, typically by means of a focused laser, within an isothermal freezing cell containing a low pressure cryogenic exchange gas such as helium, vaporizes the DT fuel contained within the microballoon. Removal of the laser heating source causes the DT gas to rapidly condense and freeze in a layer which exhibits a good degree of uniformity.

Inventors:

Miller, John R. ^[1]

(Los Alamos, NM)

Issue Date:: 1981-01-01

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM

OSTI Identifier:: 863885

Patent Number(s):: 4266506

Assignee:: United States of America as represented by United States (Washington, DC) LANL

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: apparatus; producing; cryogenic; inertially; driven; fusion; targets; technique; uniform; layers; solid; dt; microballoon; surfaces; local; heating; target; typically; means; focused; laser; isothermal; freezing; cell; containing; pressure; exchange; gas; helium; vaporizes; fuel; contained; removal; source; causes; rapidly; condense; freeze; layer; exhibits; degree; uniformity; focused laser; fusion targets; cell containing; uniform layer; fusion target; uniform layers; producing uniform; laser heating; dt fuel; driven fusion; heating source; freezing cell; local heating; producing cryogenic; microballoon surfaces; isothermal freezing; cryogenic inertially; solid dt; inertially driven; form layers; cell contain; /118/376/427/

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                    Miller, John R. Apparatus for producing cryogenic inertially driven fusion targets.  United States: N. p., 1981. 
        Web.

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                    Miller, John R. Apparatus for producing cryogenic inertially driven fusion targets.  United States.

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                    Miller, John R. Thu .  
        "Apparatus for producing cryogenic inertially driven fusion targets".  United States.  https://www.osti.gov/servlets/purl/863885.

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@article{osti_863885,

  title        = {Apparatus for producing cryogenic inertially driven fusion targets},

  author       = {Miller, John R.},

  abstractNote = {A new technique for producing uniform layers of solid DT on microballoon surfaces. Local heating of the target, typically by means of a focused laser, within an isothermal freezing cell containing a low pressure cryogenic exchange gas such as helium, vaporizes the DT fuel contained within the microballoon. Removal of the laser heating source causes the DT gas to rapidly condense and freeze in a layer which exhibits a good degree of uniformity.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1981},

  month        = {1}

}

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Methods and apparatus for producing cryogenic inertially driven fusion targets

Patent Miller, John R. (Los Alamos, NM)

A new technique for producing uniform layers of solid DT on microballoon surfaces. Local heating of the target, typically by means of a focused laser, within an isothermal freezing cell containing a low pressure cryogenic exchange gas such as helium, vaporizes the DT fuel. Removal of the laser heating source causes the DT gas to rapidly condense and freeze in a layer which exhibits a good degree of uniformity.
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Methods and apparatus for producing cryogenic inertially driven fusion targets

Patent Miller, J. R.

A new technique is disclosed for producing uniform layers of solid dt on microballoon surfaces. Local heating of the target, typically by means of a focused laser, within an isothermal freezing cell containing a low pressure cryogenic exchange gas such as helium, vaporizes the dt fuel. Removal of the laser heating source causes the dt gas to rapidly condense and freeze in a layer which exhibits a good degree of uniformity.
Method and apparatus for producing cryogenic inertially driven fusion targets

Patent Miller, J.R.

A new technique for producing uniform layers of solid DT on microballoon surfaces is described. Local heating of the target, typically by means of a focused laser, within an isothermal freezing cell containing a low pressure cryogenic exchange gas, such as helium, vaporizes the DT fuel. Removal of the laser heating source causes the DT gas to rapidly condense and freeze in a layer which exhibits a good degree of uniformity.
Apparatus for producing cryogenic inertially driven fusion targets

Patent Miller, J.R.

A new technique for producing uniform layers of solid dt on microballoon surfaces. Local heating of the target, typically by means of a focused laser, within an isothermal freezing cell containing a low pressure cryogenic exchange gas such as helium, vaporizes the dt fuel contained within the microballoon. Removal of the laser heating source causes the dt gas to rapidly condense and freeze in a layer which exhibits a good degree of uniformity.
Method and apparatus for producing cryogenic targets

Patent Murphy, James T. (Los Alamos, NM); Miller, John R. (Penfield, NY)

An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers.
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