The two metre ITEF liquid hydrogen bubble chamber

✍ Scribed by Yu.D. Aleshin; G.A. Arutunyants; V.S. Verebryusov; G.B. Gerber; L.L. Gracheva; A.Ya. Diament; V.P. Dronyaev; M.M. Kats; I.L. Kiselevitch; S.L. Krapivin; V.P. Kulakov; N.A. Lobacheva; I.A. Mel'nichenko; A.S. Morozov; V.I. Moskalev; S.Ya. Nikitin; A.A. Pletnikov; Yu.I. Ryvkin; V.I. Silaev; V.P. Surin; V.F. Turov; F.M. Khasanov; B.F. Shvartsman; A.V. Shidlovskii; V.D. Shkarlet

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 205 KB
• Volume: 11
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(71)90304-3

✦ Synopsis

The middle part of the sectioned side plate and the two washers are removed to extract the disc-shaped crystal, and the joins to the seed and to the upper channel are cut with a razor blade.

A Bi single crystal prepared from Giredmet 'experimental' brand bismuth in the way described, had a relaxation time of about 2ns a for light electrons (m* = 0-009 m0) at 0.35 K and frequency 10.22 GHz, and for heavy electrons (m* = 0"012 mo) and holes, a relaxation time of ~4 to 5 ns. These values are 5-10 times greater than the corresponding relaxation times for specimens grown from the same starting material using the method of Sharvin and Gantmakher, 1 and are an order of magnitude greater than for specimens cut from large single crystals. 4,