High-resolution, high-transmission soft x-ray spectrometer for the study of biological samples

O. Fuchs; L. Weinhardt; M. BlumM. WeigandE. UmbachM. BarC. HeskeJ. DenlingerY.-D. ChuangW. McKinneyZ. HussainE. GulliksonM. JonesP. BatsonB. NellesR. Follath

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High-resolution, high-transmission soft x-ray spectrometer for the study of biological samples

机译：High-resolution, high-transmission soft x-ray spectrometer for the study of biological samples

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We present a variable line-space grating spectrometer for soft x-rays that covers the photon energy range between 130 and 650 eV. The optical design is based on the Hettrick-Underwood principle and tailored to synchrotron-based studies of radiation-sensitive biological samples. The spectrometer is able to record the entire spectral range in one shot, i.e., without any mechanical motion, at a resolving power of 1200 or better. Despite its slitless design, such a resolving power can be achieved for a source spot as large as (30 X 3000) (mu)m~(2), which is important for keeping beam damage effects in radiation-sensitive samples low. The high spectrometer efficiency allows recording of comprehensive two-dimensional resonant inelastic soft x-ray scattering (RIXS) maps with good statistics within several minutes. This is exemplarily demonstrated for a RIXS map of highly oriented pyrolytic graphite, which was taken within 10 min.

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《Review of Scientific Instruments》 |2009年第6期|063103-1-063103-7|共7页
作者
O. Fuchs; L. Weinhardt; M. BlumM. WeigandE. UmbachM. BarC. HeskeJ. DenlingerY.-D. ChuangW. McKinneyZ. HussainE. GulliksonM. JonesP. BatsonB. NellesR. Follath;
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Universitat Wurzburg, Experimentelle Physik II, Am Hubland, 97074 Wurzburg, Germany;

Department of Chemistry, University of Nevada, 4505 Maryland Pkwy., Las Vegas, Nevada 89154-4003, USA;

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USACenter for X-Ray Optics, Material Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USACarl Zeiss Laser Optics GmbH, Carl-Zeiss-Str. 22, 73447 Oberkochen, GermanyBerliner Elektronenspeicherring-Gesellschaft fur Synchrotronstrahlung m.b.H., Albert-Einstein-Str. 15, 12489 Berlin, Germany;

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High-resolution, high-transmission soft x-ray spectrometer for the study of biological samples

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