Correlation of energy-loss and collected charge in Si dE detectors: measurements using an Enge spectrometer

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Correlation of energy-loss and collected charge in Si dE detectors: measurements using an Enge spectrometer

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Publication Article, peer reviewed scientific
Title Correlation of energy-loss and collected charge in Si dE detectors: measurements using an Enge spectrometer
Author(s) Whitlow, Harry J ; Zhang, Y ; Timmers, H ; Ophel, TR ; Elliman, RG ; Li, M ; O'Connor, DJ
Date 2000
English abstract
The correlation between energy-loss and collected-charge for individual ions traversing 7.1 m self-supporting Si p-i-n E detectors has been studied using the Enge spectrometer at the Australian National University. In this work the simultaneous measurements of the E signal and energy-loss were made for 49 MeV 28Si and 103 MeV 28Si and 147 MeV 74Ge incident ions obtained by 10° scattering of a primary beam from a thin gold target supported on a carbon foil. The results show that there exists a strong correlation (correlation coefficient r ~ 0.9) between the individual ions energy-loss and the collected-charge signal. Consequently the distributions of collected-charge and energy-loss are closely similar. The energy-loss distributions exhibit high energy-loss tails that may be attributed to asymmetry in the distribution of electronic energy-loss and/or to trajectory length spreading as a result of single and multiple scattering in nuclear collisions.
DOI http://dx.doi.org/10.1016/S0168-583X(99)01024-1 (link to publisher's fulltext)
Host/Issue Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume 164-165
ISSN 0168-583X
Pages 186-190
Language eng (iso)
Subject(s) E detector
Charge state
Multiple scattering
Energy straggling
Enge spectrometer Si detectors
Energy loss
Handle http://hdl.handle.net/2043/565 (link to this page)
Link http://dx.doi.org/10.1016/S0168-583X(99)01024-1 (external link to related web page)

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