RT Journal Article
T1 Impact of charge collection efficiency and electronic noise on the performance of solid-state 3D microdetectors
A1 Prieto Pena, Juan
A1 Gómez Rodríguez, Faustino
A1 Jiménez-Ramos, María del Carmen
A1 García López, Javier
A1 Baratto-Roldan, Anna
A1 Baselga, M.
A1 Pardo Montero, Juan
A1 Fleta, Celeste
K1 IBIC
K1 Microdetectors
K1 Microdosimetry
K1 Radiation Detection
K1 Silicon Detectors
K1 Solid-State Detectors
AB Microdosimetry has been traditionally performed through gaseous proportional counters, although in recent years different solid-state microdosimeters have been proposed and constructed for this task. In this paper, we analyze the response of solid-state devices of micrometric size with no intrinsic gain developed by CNM-CSIC (Spain). There are two major aspects of the operation of these devices that affect the reconstruction of the probability distributions and momenta of stochastic quantities related to microdosimetry. For micrometric volumes, the drift and diffusion of the charge carriers gives rise to a partial charge collection efficiency in the peripheral region of the depleted volume. This effect produces a perturbation of the reconstructed pulse height (i.e. imparted energy) distributions with respect to the actual microdosimetric distributions. The relevance of this deviation depends on the size, geometry and operating conditions of the device. On the other hand, the electronic noise from the single-event readout set-up poses a limit on the minimum detectable lineal energy when the microdosimeter size is reduced. This article addresses these issues to provide a framework on the physical constraints for the design and operation of solid-state microdosimeters.
PB Institute of Physics Publishing
SN 00319155
YR 2020
FD 2020-09
LK http://hdl.handle.net/10347/32051
UL http://hdl.handle.net/10347/32051
LA eng
NO Physics in Medicine and Biology Volume 65, Issue 177 September 2020 Article number 175004
NO This is the Accepted Manuscript version of an article accepted for publication in Physics in Medicine & Biology. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it.  The Version of Record is available online at https://doi.org/10.1088/1361-6560/ab87fa
DS Minerva
RD 28 abr 2026