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Alternate Polymer Foams for Laser IFE Targets W.P. Steckle, Jr., A.M. Schwendt, and A. Nobile Los Alamos National Laboratory Polymer and Coatings Group,

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Presentation on theme: "Alternate Polymer Foams for Laser IFE Targets W.P. Steckle, Jr., A.M. Schwendt, and A. Nobile Los Alamos National Laboratory Polymer and Coatings Group,"— Presentation transcript:

1 Alternate Polymer Foams for Laser IFE Targets W.P. Steckle, Jr., A.M. Schwendt, and A. Nobile Los Alamos National Laboratory Polymer and Coatings Group, MST-7, MS E549 Los Alamos, NM 87545

2 Task Goals Potential alternate systems being considered Injection molding Other foam systems - some contain nitrogen and oxygen, so these are lower priority Alternative initiators - UV/photoinitiators FY01 Deliverable: Report that provides a review of foam chemistries and technologies that have potential for fabrication of IFE foam targets that can be scaled up Task 3.5.2: Evaluate alternative systems for foam shells that have the potential to meet specifications ($75k LANL)

3 Foams Currently Used in ICF Targets

4 Example: Foam injection molding is being considered Close control of target specifications  out of round  wall variation  outside diameter  skin on foam  Process simplifications possible  Mature industrial technology available Bonding of hemishells with acceptable defects Removal/elimination of “nub” from injection mold process Mold design Precision fabrication of molds Process for skin and surface finish Injection Molding Advantages Issues

5 Current Injection Molding Technology has Advanced Considerably in the Recent Past MuCell™ Microcellular Injection Molding Trexel Inc. mold Density: mg/cc Pore size: µm

6 Summary Task (Alternate Foam Systems) will investigate alternative foam chemistries and technologies that could be of potential use in laser IFE targets The FY01 deliverable for this task will be a report reviewing foam systems that have potential for fabrication of IFE targets


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