THE INITIAL SCIENTIFIC PROGRAM AT THE NSLS INFRARED BEAMLINE

被引：54

作者：

WILLIAMS, GP

机构：

[1] Brookhaven National Laboratory, Upton

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 291卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(90)90025-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Unique extraction optics (90 × 90 mrad) at the National Synchrotron Light Source (NSLS) U4IR line offer high-brightness beams at up to millimeter wavelengths with a ∼ 1 ns pulse structure. Radiation from this port has now been carefully characterized and agrees well with calculations; it is 100-1000 times brighter than conventional sources in the middle and far infrared regions. Using rapid-scan Michelson interferometers with liquid-He-cooled bolometer detectors, we have been able for the first time to measure molecule substrate vibrations in surface science. We have also made the first measurements of the transmission of a film of the high-Tc superconducting material YBaCuO in the BCS gap region. These initial experiments have demonstrated the advantages of the superior signal-to-noise ratio available from this infrared beamline. © 1990.

引用

页码：8 / 12

页数：5

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