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Title: TPX remote maintenance and shielding

The Tokamak Physics Experiment machine design incorporates comprehensive planning for efficient and safe component maintenance. Three programmatic decisions have been made to insure the successful implementation of this objective. First, the tokamak incorporates radiation shielding to reduce activation of components and limit the dose rate to personnel working on the outside of the machine. This allows most of the ex-vessel equipment to be maintained through conventional ``hands-on`` procedures. Second, to the maximum extent possible, low activation materials will be used inside the shielding volume. This resulted in the selection of Titanium (Ti-6Al-4V) for the vacuum vessel and PFC structures. The third decision stipulated that the primary in-vessel components will be replaced or repaired via remote maintenance tools specifically provided for the task. The component designers have been given the responsibility of incorporating maintenance design and for proving the maintainability of the design concepts in full-scale mockup tests prior to the initiation of final fabrication. Remote maintenance of the TPX machine is facilitated by general purpose tools provided by a special purpose design team. Major tools will include an in-vessel transporter, a vessel transfer system and a large component transfer container. In addition, tools such as manipulators and remotely operable impactmore » wrenches will be made available to the component designers by this group. Maintenance systems will also provide the necessary controls for this equipment.« less
Authors:
;
Publication Date:
OSTI Identifier:
10178377
Report Number(s):
CONF-940630--42
ON: DE94017901
DOE Contract Number:
AC05-84OR21400; AC02-76CH03073
Resource Type:
Conference
Resource Relation:
Conference: 11. topical meeting on the technology of fusion energy,New Orleans, LA (United States),19-24 Jun 1994; Other Information: PBD: [1994]
Research Org:
Oak Ridge National Lab., TN (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TPX DEVICE; SHIELDING; MAINTENANCE; REMOTE HANDLING; REMOTE HANDLING EQUIPMENT 700480; COMPONENT DEVELOPMENT; MATERIALS STUDIES