| タイトル | Multistation refrigeration system |
| 本文（外部サイト） | http://hdl.handle.net/2060/19780017313 |
| 著者（英） | Wiebe, E. R. |
| 著者所属（英） | NASA Pasadena Office|Jet Propulsion Lab., California Inst. of Tech. |
| 発行日 | 1978-03-07 |
| 言語 | eng |
| 内容記述 | A closed cycle refrigeration (CCR) system is disclosed for providing cooling at different parts of a maser. The CCR includes a first station for cooling the maser's parts, except the amplifier portion, to 4.5 K. The CCR further includes means with a 3.0 K station for cooling the maser's amplifier to 3.0 K and, thereby, increases the maser's gain and/or bandwith by a significant factor. The means which provide the 3.0 K cooling include a pressure regulator, heat exchangers, an expansion valve, and a vacuum pump, which coact to cause helium, provided from a compressor, to liquefy and thereafter expand so as to vaporize. The heat of vaporization for the helium is provided by the maser amplifier, which is thereby cooled to 3.0 K. |
| NASA分類 | ENGINEERING (GENERAL) |
| レポートNO | 78N25256 |
| 権利 | No Copyright |
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