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Title: Preliminary results of the partial array LCT coil tests

Conference ·
OSTI ID:6439480

The Large Coil Task (LCT) is a collaboration between the US, Euratom, Japan, and Switzerland for the production and testing of 2.5 x 3.5-m bore, superconducting 8-T magnets. The definitive tests in the design configuration, the six coils arrayed in a compact torus, will begin in 1985. Partial-array tests are being done in 1984. In January the initial cooldown of two coils was aborted because of helium-to-vacuum leaks that developed in certain seal welds when the coil temperatures were 170 to 180 K. In July three adjacent coils (designated JA, GD, CH) were cooled and in August two were energized to the limits of the test facility. An overview of the results are presented, including facility, cooldown (warmup has not yet begun), energization, dump, recovery from intentional normal zones, strain, and displacement, for operation up to 100% of design current but below full field and stress. These initial results are highly encouraging.

Research Organization:
Oak Ridge National Lab., TN (USA); Massachusetts Inst. of Tech., Cambridge (USA); Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.); Japan Atomic Energy Research Inst., Tokai, Ibaraki. Tokai Research Establishment; General Dynamics Corp., San Diego, CA (USA). Convair Div.; Schweizerisches Inst. fuer Nuklearforschung, Villigen
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6439480
Report Number(s):
CONF-840937-4-Draft; ON: DE85001610
Resource Relation:
Conference: Applied superconductivity conference, San Diego, CA, USA, 9 Sep 1984; Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English