| タイトル | A small, passively operated hydrogen maser |
| 著者（英） | Walls, F. L.; Bell, H. E.; Howe, D. A.; Hellwig, H. |
| 著者所属（英） | National Bureau of Standards |
| 発行日 | 1979-01-01 |
| 言語 | eng |
| 内容記述 | The paper describes a compact passive hydrogen maser with unique features including a reduction in size. It uses a passive operation mode, permitting the use of a small microwave TE(011) cavity dielectrically loaded by a low loss alumina. The Teflon coated quartz bulb common in other masers has been replaced by a Teflon coating on the inside wall of the cavity producing a simpler designed and a more rugged H-maser package. The cavity and the attached endcaps comprise the vacuum envelope, allowing the use of a single vacuum system. The dimensional stability of the ceramic cavity under barometric changes is sufficiently within the range of the electronic cavity servo so that a second vacuum system is not required. For temperature control, a single oven is located in the magnetic shield nest. |
| NASA分類 | LASERS AND MASERS |
| レポートNO | 80A40414
PB81-104358 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/421300 |
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