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Hamburg 2001 – scientific programme

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TT: Tiefe Temperaturen

TT 2: Tieftemperatur-Teilchen-Detektoren

TT 2.9: Talk

Monday, March 26, 2001, 12:15–12:30, H

A PULSE TUBE BASED HIGH RESOLUTION MICROCALORIMETER EDX SYSTEM — •Matthias Bühler, Theo Hertrich, Uwe Hess, Jens Höhne, Kevin Phelan, Roger v. Hentig, and Doreen Wernicke — Bahnhofstr. 18a, D-85737 Ismaning, www.csp-munich.com

Based on excellent energy resolution and single quantum detection sensitivity, microcalorimeter EDX systems are offering a variety of new, analytical solutions for the analysis of elementary surface compositions, especially for the analysis of light elements and very small sized structures. Besides tunnel junction detectors, magnetic calorimeters and other types, microcalorimeter EDX systems belong to the group of cryogenic detectors. They operate typically at temperatures between 30 and 200mK and require vibration free and fully automated cooling systems in order to qualify for industrial applications. Cryogenic detectors are employed as highly sensitive X-ray, UV and VIS spectrometers. As X-ray spectrometers with energy resolutions of less than 15eV at 1.5keV they allow to access new surface analysis applications and contribute to astrophysical research.

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