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4479717 Apparatus for measuring the position of an object


Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
82 KB
Volume
2
Category
Article
ISSN
0736-5845

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An apparatus for measuring the length of
โœ Yu.P. Dmitrevskii; V.V. Elestratov; A.F. Prudkoglyad ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 94 KB

The consumption of liquid hydrogen in this target is exactly the same as in that described above. One can work with an electron beam without ref'dling with hydrogen for 4 to 5 days. If necessary, the hydrogen reservoir and one of the targets can be f'dled with liquid He 4 and the other with He 3 by