Title of article
Characterization of superconducting tunnel junction X-ray detectors by means of monochromatized undulator radiation
Author/Authors
Veldkamp، نويسنده , , M. and Beckhoff، نويسنده , , B. and Fliegauf، نويسنده , , R. and Ulm، نويسنده , , G. and Frank، نويسنده , , Cyprian M. and Friedrich، نويسنده , , S. E. Labov، نويسنده , , S.E.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
7
From page
450
To page
456
Abstract
A superconducting tunnel junction X-ray detector system was designed to match current energy resolution, count rate and UHV requirements in soft X-ray spectroscopy. It employs a two-stage adiabatic demagnetization refrigerator with a 23 cm long cold finger to operate the detector inside a sample chamber for X-ray fluorescence measurements. This cryogenic detector system was characterized in the energy range from 100 eV to 900 eV with respect to its energy resolution ranging from 12 eV to 25 eV FWHM, count rate capability up to 80 kcps and absolute detection efficiency using undulator radiation monochromatized by means of a plane grating monochromator beamline. Collimating the beam to the detector area improves the energy resolution by about 10%. The potential of this novel detector for beamline characterization was investigated.
Keywords
Synchrotron radiation , Superconducting tunnel junction (STJ) , detector calibration , X-ray fluorescence analysis (XRF) , Beamline characterization
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2002
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2196957
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