Transition-Edge Sensors for Particle Induced X-ray Emission Measurements
Palosaari, M., Kinnunen, K., Julin, J., Laitinen, M., Napari, M., Sajavaara, T., Doriese, W. B., Fowler, J., Reintsema, C., Swetz, D., Schmidt, D., Ullom, J., & Maasilta, I. (2014). Transition-Edge Sensors for Particle Induced X-ray Emission Measurements. Journal of Low Temperature Physics, 176(3-4), 285-290. https://doi.org/10.1007/s10909-013-1004-5
Julkaistu sarjassa
Journal of Low Temperature PhysicsPäivämäärä
2014Tekijänoikeudet
© Springer Science+Business Media New York 2013. This is a final draft version of an article whose final and definitive form has been published by Springer. Published in this repository with the kind permission of the publisher.
In this paper we present a new measurement setup, where a transitionedge
sensor detector array is used to detect X-rays in particle induced X-ray emission
measurements with a 2 MeV proton beam. Transition-edge sensors offer orders
of magnitude improvement in energy resolution compared to conventional
silicon or germanium detectors, making it possible to recognize spectral lines
in materials analysis that have previously been impossible to resolve, and to get
chemical information from the elements. Our sensors are cooled to the operation
temperature (∼ 65 mK) with a cryogen-free adiabatic demagnetization refrigerator,
which houses a specially designed X-ray snout that has a vacuum tight window
to couple in the radiation. For the best pixel, the measured instrumental energy
resolution was 3.06 eV full width at half maximum at 5.9 keV. We discuss the current
status of the project, benefits of transition-edge sensors when used in particle
induced X-ray emission spectroscopy, a
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