Hannover 2013 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 16: Photoionization
A 16.6: Vortrag
Dienstag, 19. März 2013, 12:15–12:30, F 428
Stopping power measurements with Calorimetric Low Temperature Detectors — •Patrick Grabitz1,2, Artur Echler1,2,3, Saskia Kraft-Bermuth3, Wladyslaw Trzaska4, Heikki Kettunen4, Mikko Rossi4, Katrin Müller3, and Ari Virtanen4 — 1GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany — 2Johannes Gutenberg Universität, Mainz, Germany — 3Justus-Liebig-Universität, Gießen, Germany — 4University of Jyväskylä, Finland
Compared to conventional ionization detectors calorimetric low temperature detectors (CLTD’s) provide, due to their detection principle, substantial advantages in detector performance, such as energy resolution, linearity and the absence of any pulse hight defect [1].
One potential application of such detectors is the determination of electronic stopping powers for slow heavy ions which are important for our understanding of the interaction of heavy ions with matter. Recently a combined setup of a CLTD-array and a time-of-flight detector (E-TOF) has been used to perform transition type energy loss measurements at the accelerator facility of the University of Jyväskylä. The new experimental technique allowed to determine precise data on electronic stopping powers for 0.05-1 MeV/u 131Xe-Ions in Carbon, Nickel and Gold. The results will be presented in comparison with theoretical predictions and data from the literature.
P. Egelhof and S. Kraft-Bermuth, Topics Appl. Phys. 99 (2005) 469-500