Photodetachment Cross Section of the Negative Hydrogen Ion

Photodetachment Cross Section of the Negative Hydrogen Ion
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负氢离子的光脱离截面

DOI：
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发表时间：
1959
期刊：
影响因子：
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通讯作者：
D. Burch
D. Burch
中科院分区：
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文献类型：
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作者：
Stephen J. Smith;D. Burch

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本文报道了在0.4 ~ 1.3 μ波长范围内首次精确测量负原子氢离子光剥离截面随波长变化的结果。通过提高探测灵敏度和消除背景信号来提高实验中的信噪比，并通过发展一种直接、可靠的方法来相对测定光子束中的光强，从而实现测量。（W.D.M.）
The results of the first precise measurement of the wavelength dependence of the photodetachment cross section of the negative atomic hydrogen ion in the range from 0.4 to 1.3 mu are reported. The measurement was accomplished by improving signal-to-noise ratio in the experiment through improvement of preamplifier detection sensitivity and elimination of background signals and by developing a direct, reliable method for relative determination of light intensity in the photon beam. (W.D.M.)