Open AccessDesign and testing of a prototype multilayer analyzer X‐ray fluorescence detector
Author(s) -
Zhang K.,
Rosenbaum G.,
Bunker G.
Publication year - 1999
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049598018111
Subject(s) - spectrum analyzer , detector , fluorescence , x ray fluorescence , optics , physics , computer science , materials science
It is a concern that multielement solid state detectors, commonly used for x-ray fluorescence detection on dilute systems, will not be optimal with the third generation sources due to their count rate limitations and the high photon flux from the source. As an alternative, we are developing energy-resolving x-ray fluorescence detectors using synthetic multilayers. In this paper, we present the design and testing of a prototype multilayer array detector that consists of three elements of graded multilayers. The tests show that the elements can be accurately aligned relative to each other, and the instrument can be easily tuned to other fluorescence energies once aligned. A background rejection rate of 40-50 times has been achieved with a throughput of 28-30 percent.