Title

Measurement Of Quasiparticle Transport In Aluminum Films Using Tungsten Transition-Edge Sensors

Document Type

Article

Publication Date

10-20-2014

Publisher

American Institute of Physics

Abstract

We report on experimental studies of phonon sensors which utilize quasiparticle diffusion in thin aluminum films connected to tungsten transition-edge-sensors (TESs) operated at 35 mK. We show that basic TES physics and a simple physical model of the overlap region between the W and Al films in our devices enables us to accurately reproduce the experimentally observed pulse shapes from x-rays absorbed in the Al films. We further estimate quasiparticle loss in Al films using a simple diffusion equation approach. These studies allow the design of phonon sensors with improved performance.

Comments

Copyright © 2014 American Institute of Physics Publishing. Reprinted with permission.

Share

COinS