The Russian-American high magnetic field collaboration Page: 3 of 8
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THE RUSSIAN-AMERICAN HIGH MAGNETIC FIELD COLLABORATION*
C.M.Fowler, J.M.Christian, B.L.Freeman, J.D.Goettee, J.C.King, B.J.Papatheofanis,
R.E.Reinovsky, P.J.Rodriguez, M.G.Sheppard, L.R.Veeser, W.D.Zerwekh
Los Alamos National Laboratory, Los Alamos,NM
A.LBykov, M.I.Dolotenko, N.P.Kolokolchikov, Y.B.Kudasov, V.V.Platonov, O.M.Tatsenko
All-Russian Scientific Research Institute of Experimental Physics, Arzamas-16, Russia
W. Lewis and B. R. Marshall
EG&G Special Technologies Laboratory, Santa Barbara, CA
We report here on a joint experimental shot series with teams from Russia and the
United States. The program was based largely upon the MC-1 generator, a high
magnetic field explosive flux compressor, developed by the Pavlovskii group at
Arzamas-16. The series was of historical interest in that it was carried out in a Los
Alamos security area, the first time for such a collaboration. We discuss a number of
technical issues involved in matching Russian hardware with Los Alamos
explosives, initiation systems and the seed field energy source, as well as comparison
of field measuring diagnostics fumished by the two teams. We conclude with a
discussion of an investigation of the high temperature superconductor YBa2 Cu3 07
(YBCO), employing these generators. The low temperature critical magnetic field of
this material was found to be 340+40 T, as determined from a 94 GHz microwave
interferometer developed for this purpose.
In this paper, we give an overview of an experimental shot series carried out jointly by
Russian and American scientists at Los Alamos's Ancho Canyon Site. This is a Security Site and,
to our knowledge, this exercise was the first of its kind carried out at Los Alamos.
The program was mainly built around the MC-l high magnetic field generator developed
by Pavlovskii et al. although some Los Alamos systems were also employed. In view of space
limitations, we confine our attention here to the MC-1 generator and its applications. However,
for the interested reader a much more comprehensive report of the program is now available.2
The MC-1 generator is described in Section 2, which also includes results from a prelimi-
nary test that established the compatibility of Los Alamos explosive fabrication and firing tech-
niques with Russian hardware. Results from complete flux compression tests with two different
types of explosives are given in Section 3, that includes a discussion of the field measuring diag-
nostics. Section 4 concludes the paper, and is devoted to the experiments used to find the upper
critical field of the high temperature superconductor, YBCO.
*This work was supported by the U.S. Department of Energy
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Fowler, C.M.; Christian, J.M. & Freeman, B.L. The Russian-American high magnetic field collaboration, article, July 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc791648/m1/3/: accessed February 18, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.