scholarly journals Analog and Digital Signal Processing for Pressure Source Imaging at 190 MeV Proton Beam

2019 ◽  
Vol 216 ◽  
pp. 04003
Author(s):  
Elia A. Vallicelli ◽  
Michele Riva ◽  
Mario Zannoni ◽  
Andrea Baschirotto ◽  
Marcello De Matteis

Oncological hadron therapy utilizes a beam of charged particles to destroy the tumor cells, exploiting the particular deposition curve that allow minimum damage to the surrounding healty tissues compared to traditional radiotherapy. Sulak and Hayakawa’s works have shown the applicability of this technique in clinical scenarios, but the lack of dedicated electronics for this type of experiments affects the spatial resolution that can be obtained with this technique [1]. This work presents an integrated analog front-end dedicated to ionoacoustic experiments that allows to estimate the position of the Bragg Peak with an average deviation of 1% with respect to the real position.

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Sarah Linz ◽  
Gabor Vinci ◽  
Sebastian Mann ◽  
Stefan Lindner ◽  
Francesco Barbon ◽  
...  

The Six-port receiver has been intensively investigated in the last decade to be implemented as an alternative radar architecture. Plenty of current scientific publications demonstrate the effectiveness and versatility of the Six-port radar for special industrial, automotive, and medical applications, ranging from accurate contactless vibration analysis, through automotive radar calibration, to remote breath and heartbeat monitoring. Its highlights, such as excellent phase discrimination, trivial signal processing, low circuit complexity, and cost, have lately drawn the attention of companies working with radar technology. A joint project involving the University of Erlangen-Nuremberg and InnoSenT GmbH (Innovative Sensor Technology) led to the development of a highly accurate, compact, and versatile Six-port radar module aiming at a reliable high-integration of all subcomponents such as antenna, Six-port front-end, baseband circuitry, and digital signal processing in one single package. Innovative aspects in the RF front-end design as well as in the integration strategy are hereby presented, together with a system overview and measurement results.


Author(s):  
Felix Winterstein ◽  
Gunther Sessler ◽  
Maria Montagna ◽  
Magdalena Mendijur ◽  
Guillaume Dauron ◽  
...  

2011 ◽  
Vol 70 (1) ◽  
pp. 15-32 ◽  
Author(s):  
Hyuntae Kim ◽  
Bharatan Konnanath ◽  
Prasanna Sattigeri ◽  
Joseph Wang ◽  
Ashok Mulchandani ◽  
...  

2006 ◽  
Vol 4 ◽  
pp. 189-195 ◽  
Author(s):  
M. Mailand ◽  
R. Richter ◽  
H.-J. Jentschel

Abstract. Within current implementations of mobile terminals, more and more analog components are replaced by appropriate digital processing. On the one hand, the analog front-ends become less complex. On the other hand, more digital signal processing is required to compensate for the spurious effects of the front-end. In this article, the frequency-selective imbalance of the in-phase and quadrature-phase signals is addressed. A closed representation of arbitrary signals being processed by an arbitrary imbalanced analog front-end is provided. The analysis is valid for both, direct conversion and intermediate frequency (IF) reception. With the consideration of practical variations of amplitude and phase impairments, the influence of only the frequency-dependent portions of the impairments is investigated. It is shown, that the compensation of the quasi-linear impairments is sufficient and complex deconvolutive IQ-regeneration procedures are not stringently required to obtain sufficient signal qualities.


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