We describe the design and performance of a high-brilliance XAFS station at BL10XU of SPring-8 planned for rapid and sensitive Xray absorption fine structure (XAFS). A deflection parameter K-y of undulator and a double crystal monochromator have been successfully tuned to cover a wide range in energy (5-30 keV). For a high throughput fluorescence data acquisition, a 100-pixel Ge detector has been developed which allows a total count rate exceeding 30 MHz with a typical energy resolution of 270 eV at 5.9 keV. A three-axis high-precision goniometer is designed to provide any polarization geometry including a grazing-incidence fluorescence excitation.
Rapid and Sensitive XAFS using a tunable X-ray undulator / H., Oyanagi; M., Ishii; C. H., Lee; Saini, Naurang Lal; Y., Kuwahara; A., Saito; Y. IZUMI AND H., Hashimoto. - In: JOURNAL OF SYNCHROTRON RADIATION. - ISSN 0909-0495. - STAMPA. - 6:(1999), pp. 155-157. [10.1107/S0909049598017245]
Rapid and Sensitive XAFS using a tunable X-ray undulator
SAINI, Naurang Lal;
1999
Abstract
We describe the design and performance of a high-brilliance XAFS station at BL10XU of SPring-8 planned for rapid and sensitive Xray absorption fine structure (XAFS). A deflection parameter K-y of undulator and a double crystal monochromator have been successfully tuned to cover a wide range in energy (5-30 keV). For a high throughput fluorescence data acquisition, a 100-pixel Ge detector has been developed which allows a total count rate exceeding 30 MHz with a typical energy resolution of 270 eV at 5.9 keV. A three-axis high-precision goniometer is designed to provide any polarization geometry including a grazing-incidence fluorescence excitation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
