Fundamental effects and non-linear Si detector response

DSpace Repository

Fundamental effects and non-linear Si detector response

Show full item record

Files for download

Find Full text There are no files associated with this item.


Simple item record

Publication Article, peer reviewed scientific
Title Fundamental effects and non-linear Si detector response
Author(s) Whitlow, Harry J ; Zhang, Y
Date 2002
English abstract
Non-linearity in the energy response of a Si p-i-n charged particle detector has been studied for incident particles with Z1 between 3 and 26, and energies between 0.1 and 0.7 MeV per nucleon. Although the data closely followed a straight line relations, fitting of the data to a third order polynomial revealed that the response exhibited a persistent curvature that acted to reduce the energy interval spanned by a channel as the energy increased. The curvature increased as Z1 increased from 4 to 8 and then systematically decreased. The curvature is larger and has the opposite energy dependence to the stopping in a dead entrance window and the energy deposited in non-ionising processes within the active layer. The plasma recombination dependence on the average stopping along the plasma column may account for the reduction in curvature as Z1 increases from 9 to 25 but cannot explain the net effect. The low-energy increase in energy channel span, which has also been reported by others, might be associated with electron excitation in resonant and direct classical quasi-elastic collisions for low-energy ions, or less likely, electronic non-linearity's associated with Z1 and energy dependent time structure in the current pulse from the detector. Simple interpolation of the window-loss corrected polynomial coefficients is the best approach if the calibration for Z1 cannot be established directly.
DOI (link to publisher's fulltext)
Host/Issue Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms;1-4
Volume 190
ISSN 0168-583X
Pages 375-378
Language eng (iso)
Subject(s) Si charged-particle detector
P-i-n diode
Time of flight
Electronic stopping
Energy calibration
Handle (link to this page)

This item appears in the following Collection(s)

Show full item record



My Account