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Development of the Los Alamos National Laboratory Cryogenic Pressure Loader

Journal Article · · Fusion Science and Technology
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  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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Targets for inertial fusion research and ignition at OMEGA, the National Ignition Facility, LMJ, and future facilities rely on beta-radiation-driven layering of spherical cryogenic DT ice layers contained within plastic or metal shells. Plastic shells will be permeation filled at room temperature then cooled to cryogenic temperatures before removal of the overpressure. The cryogenic pressure loader (CPL) was recently developed at Los Alamos National Laboratory as a testbed for studying the filling and layering of plastic target shells with DT. A technical description of the CPL is provided. The CPL consists of a cryostat, which contains a high-pressure permeation cell, and has optical access for investigating beta layering. The cryostat is housed within a tritium glovebox that contains manifolds for supplying high-pressure DT. The CPL shares some design elements with the cryogenic target handling system at the OMEGA facility to allow testing of tritium issues related to that system. The CPL has the capability to fill plastic targets by permeation to pressures up to 100 MPa and to cool them to 15 K. The CPL will accommodate a range of targets and may be modified for future experiments.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
819209
Report Number(s):
LA-UR-02-4743
Journal Information:
Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 3 Vol. 43; ISSN 1536-1055
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English

References (5)

First results from cryogenic target implosions on OMEGA journal May 2002
Uniform solid deuterium–tritium fuel layers resulting from radioactively induced sublimation journal May 1989
Research Program for the Fabrication of the LMJ Cryogenic Target journal May 2002
Characterization Specifications for Baseline Indirect Drive NIF Targets journal May 2002
Infrared Heating of Hydrogen Layers in Hohlraums journal May 2002

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY