Superconducting transition-edge-microcalorimeter X-ray spectrometer with 2eV energy resolution at 1.5 keV

Citation
Da. Wollman et al., Superconducting transition-edge-microcalorimeter X-ray spectrometer with 2eV energy resolution at 1.5 keV, NUCL INST A, 444(1-2), 2000, pp. 145-150
Citations number
16
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
444
Issue
1-2
Year of publication
2000
Pages
145 - 150
Database
ISI
SICI code
0168-9002(20000411)444:1-2<145:STXSW2>2.0.ZU;2-#
Abstract
We describe the operation and performance of a prototype microcalorimeter " energy-dispersive'' (non-dispersive) X-ray spectrometer (mu cal EDS) develo ped at NIST for use in X-ray microanalysis and X-ray astronomy. The low-ene rgy microcalorimeter detector, consisting of an AI-Ag bilayer superconducti ng transition-edge sensor (TES) in thermal contact with a Pi X-ray absorber , is designed for operation in the energy range from 0-2 keV and is fabrica ted using a shadow-mask lithographic process. The TES microcalorimeter is c ooled by a compact adiabatic demagnetization refrigerator and is mounted on a scanning electron microscope. This device achieves a best energy resolut ion of 2.0 +/- 0.1 eV at 1.5 keV, as determined from the analysis of digiti zed X-ray spectra of a complex glass containing many elements. Published by Elsevier Science B.V.