The electron storage ring as a source of infrared radiation
The electron storage ring as a source of infrared radiation
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作为红外辐射源的电子存储环
DOI：
10.1016/0168-9002(85)90045-2
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发表时间：
1985
影响因子：
1.4
通讯作者：
A. Bradshaw
中科院分区：
文献类型：
--
作者：
E. Schweizer;J. Nagel;W. Braun;E. Lippert;A. Bradshaw
用傅里叶光谱仪研究了柏林电子储存环BESSY的红外同步辐射特性。计算发现，如果干涉仪是吞吐量限制元件，在束流为100 mA时，仅在30 cm−1以下的光谱区域，BESSY才能提供比常规源更高的通量。然而，如果吞吐量受到小样本量的限制，或者如果实验需要大的f数，同步辐射的高亮度已经可以在数百个波数产生通量优势。讨论了它在一个特殊实验--金属单晶表面吸附分子的红外反射吸收光谱中的可能应用。在这里描述的研究过程中，还证实了同步辐射(∼100ps)的短光脉冲不会对傅里叶变换光谱的分辨率产生不利影响。
The characteristics of synchrotron radiation in the infrared region have been investigated at the Berlin electron storage ring BESSY using Fourier spectroscopy. In accordance with calculation, it was found that BESSY at 100 mA beam current delivers higher fluxes than a conventional source only in the spectral region below 30 cm−1, provided the interferometer is the throughput-limiting element. If, however, the throughput is limited by small sample size or, if the experiment requires a largef-number, the high brightness of synchrotron radiation could already yield flux advantages at several hundred wavenumbers. The possible application in one particular experiment - infrared reflection-absorption spectroscopy of adsorbed molecules on metal single crystal surfaces - is discussed. In the course of the investigations described here, it was also established that the short light pulses of the synchrotron radiation (∼ 100 ps) do not adversely affect the resolution in Fourier transform spectroscopy.