Fundamental effects and non-linear Si detector response
(2002) In Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms 190(1-4). p.375-378- Abstract
- Non-linearity in the energy response of a Si p-i-n charged particle detector has been studied for incident particles with Z(1) 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 Z(1) 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... (More)
- Non-linearity in the energy response of a Si p-i-n charged particle detector has been studied for incident particles with Z(1) 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 Z(1) 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 Z(1) 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 Z(1) 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 Z(1) cannot be established directly. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/335444
- author
- Whitlow, Harry J LU and Zhang, YW
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- time of flight, electronic stopping, Si charged-particle detector, energy calibration, ERDA, p-i-n diode
- in
- Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
- volume
- 190
- issue
- 1-4
- pages
- 375 - 378
- publisher
- Elsevier
- external identifiers
-
- wos:000176108800073
- scopus:0036570262
- ISSN
- 0168-583X
- DOI
- 10.1016/S0168-583X(01)01302-7
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Nuclear Physics (Faculty of Technology) (011013007)
- id
- 86411405-cf04-4099-8ff2-2b5146ba16e5 (old id 335444)
- date added to LUP
- 2016-04-01 16:42:40
- date last changed
- 2022-03-15 02:22:50
@article{86411405-cf04-4099-8ff2-2b5146ba16e5,
abstract = {{Non-linearity in the energy response of a Si p-i-n charged particle detector has been studied for incident particles with Z(1) 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 Z(1) 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 Z(1) 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 Z(1) 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 Z(1) cannot be established directly.}},
author = {{Whitlow, Harry J and Zhang, YW}},
issn = {{0168-583X}},
keywords = {{time of flight; electronic stopping; Si charged-particle detector; energy calibration; ERDA; p-i-n diode}},
language = {{eng}},
number = {{1-4}},
pages = {{375--378}},
publisher = {{Elsevier}},
series = {{Nuclear Instruments & Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms}},
title = {{Fundamental effects and non-linear Si detector response}},
url = {{http://dx.doi.org/10.1016/S0168-583X(01)01302-7}},
doi = {{10.1016/S0168-583X(01)01302-7}},
volume = {{190}},
year = {{2002}},
}