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词汇 Micromaser
分类 英语词汇 英语翻译词典
释义

Micromaser

中文百科

激微波 Maser

（重定向自Micromaser）
一台氢微波激射器
Maser de hidrógeno.
Esquema de un maser de hidrógeno.
First prototype ammonia maser and inventor Charles H. Townes. The ammonia nozzle is at left in the box, the four brass rods at center is the quadrupole state selector, and the resonant cavity is at right. The 24 GHz microwaves exit through the vertical waveguide Townes is adjusting. At bottom are the vacuum pumps.

激微波(英语：MASER，又音译作迈射，或译作微波激射器）是受激放大微波辐射（英语：Microwave Amplification by Stimulated Emission of Radiation）的头字母。它指通过受激辐射放大和必要的反馈，产生同一波宽、准直、相干的微波的过程及仪器。

利用激微波原理的「惰性氢微波激射器原子钟」，可制作「比铷原子钟精确十倍，每三百万年还差不到一秒」的原子钟。

英语百科

Maser 激微波

（重定向自Micromaser）
First prototype ammonia maser and inventor Charles H. Townes. The ammonia nozzle is at left in the box, the four brass rods at center is the quadrupole state selector, and the resonant cavity is at right. The 24 GHz microwaves exit through the vertical waveguide Townes is adjusting. At bottom are the vacuum pumps.
A hydrogen radio frequency discharge, the first element inside a hydrogen maser (see description below)
A hydrogen maser.

A maser (/ˈmeɪzər/), an acronym for "microwave amplification by stimulated emission of radiation", is a device that produces coherent electromagnetic waves through amplification by stimulated emission. The first maser was built by Charles H. Townes, James P. Gordon, and H. J. Zeiger at Columbia University in 1953. Townes, Nikolay Basov and Alexander Prokhorov were awarded the 1964 Nobel Prize in Physics for theoretical work leading to the maser. Masers are used as the timekeeping device in atomic clocks, and as extremely low-noise microwave amplifiers in radio telescopes and deep space spacecraft communication ground stations.
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