Publications

Performance improvement tests of MACACO: a Compton telescope based on continuous crystals and SiPMs (pdf)

Tests of MACACO Compton telescope with 4.44 MeV gamma rays (pdf)

2017

The SAFIR experiment: Concept, status and perspectives (pdf)

Performance evaluation of MACACO: a multilayer Compton camera (pdf)

2016

Experimental evaluation of the resolution improvement provided by a silicon PET probe (pdf)

Modelling Random Coincidences in Positron Emission Tomography by Using Singles and Prompts: a Comparison Study (pdf)

Performance of MACACO Compton Telescope for Ion-Beam Therapy Monitoring: first test with proton beams (pdf)

3D position determination in monolithic crystals coupled to SiPMs for PET (pdf)

First Images of a Three-layer Compton Telescope prototype for Treatment Monitoring in hadron Therapy (pdf)

2015

Performance of VATA64HDR16 ASIC for medical physics applications based on continuous crystals and SiPMs (pdf)

Evaluation of a high resolution silicon PET insert module (pdf)

Recent developments in photodetection for medical applications (pdf)

Simulation study of PET detector limitations using continuous crystals (pdf)

Noise evaluation of Compton camera imaging for proton therapy (pdf)

2014

Study of a high-resolution PET system using a Silicon detector probe (pdf)

Sensitivity recovery for the AX-PET prototype using inter-crystal scattering events (pdf)

2013

Imaging results and TOF studies with axial PET detectors (pdf)

Application of Artificial Neural Network for reducing random coincidences in PET (pdf)

PET reconstruction from truncated projections using total-variation regularization for hadron therapy monitoring

The AX-PET experiment: A demonstrator for an axial Positron Emission Tomograph (pdf)

A Monte-Carlo based model of the AX-PET demonstrator and its experimental validation (pdf)

Simulated one-pass list-mode: an approach to on-the-fly system matrix calculation (pdf)

Silicon detectors for combined MR–PET and MR–SPECT imaging (pdf)

High resolution detectors based on continuous crystals and SiPMs for small animal PET (pdf)

First Compton telescope prototype based on continuous LaBr3-SiPM detectors (pdf)

High performance detector head for PET and PET/MR with continuous crystals and SiPMs (pdf)

2012

Joint image and motion reconstruction for PET using a B-spline motion model (pdf)

Silicon as an unconventional detector in positron emission tomography (pdf)

AX-PET: A novel PET concept with G-APD readout (pdf)

High Performance 3D PET Reconstruction Using Spherical Basis Functions on a Polar Grid (pdf)

Comparison of Basis Functions for 3D PET Reconstruction Using a Monte Carlo System Matrix (pdf)

Detector characterization and first coincidence tests of a compton telescope based on LaBr3 crystals and SiPMs (pdf)

2011

The AX--PET Demonstrator -- Design, Construction and Characterization (pdf)

First tests in the application of silicon photomultiplier arrays to dose monitoring in hadron therapy (pdf)

A silicon PET probe (pdf)

Demonstration of an Axial PET concept for brain and small animal imaging (pdf)

Spectroscopy study of imaging devices based on silicon pixel array detector coupled to VATAGP7 readout chips (pdf)

2010

Joint reconstruction of image and motion in gated positron emission tomography (pdf)

Real time coincidence detection engine for high count rate timestamp based PET (pdf)

Characterization of a pet detector head based on continuous lyso crystals and monolithic, 64-pixel silicon photomultiplier matrices (pdf)

Improving the singles rate method for modeling accidental coincidences in high-resolution PET (pdf)

Geometrical and monte carlo projectors in 3d pet reconstruction (pdf)

Construction and tests of demonstrator modules for a 3-d axial pet system for brain or small animal imaging (pdf)

The AX-PET project: Demonstration of a high resolution axial 3D PET (pdf)

2009

Development and validation of a GATE simulation model for the LabPET scanner (pdf)

AX-PET: A novel PET detector concept with full 3D reconstruction (pdf)

2008

Effect of inter-crystal scatter on estimation methods for random coincidences and subsequent correction (pdf)

2007

Performance evaluation of MADPET-II, a small animal dual layer LSO-APD PET scanner with individual detector read out and depth of interaction information (pdf)

Nuevo instituto de física médica: la física y la medicina abren nuevas vías en Valencia

Estimating accidental coincidences for pixelated PET detectors and singles list-mode acquisition (pdf)

2006

Comparison of different approaches based on Monte Carlo methods to calculate the system matrix for small animal PET (pdf)

Conference Proceedings

2023

3D position determination in LaBr3 monolithic crystals with convolutional neural networks (pdf)

Evaluation of MACACO III Compton camera for assessment of radiopharmaceutical treatments (pdf)

Inter-Crystal Scatter in a Novel Brain Dedicated PET Detector with 3D Spatial Information (pdf)

From MACACOp to FALCON, characterization and in-beam tests (pdf)

PET-Compton camera integration: towards a compact alternative to PET-SPECT (pdf)

Improvement studies of Compton cameras over gamma cameras in nuclear medicine treatments (pdf)

Effect of electron space-charge on the gain of a two-dimensional photomultiplier tube model (pdf)

2022

Event selection with Neural Networks for Compton camera imaging of multi-energy radioactive sources (pdf)

MACACO Compton camera for medical applications (pdf)

PMT system for prompt gamma-ray measurements during proton therapy treatments (pdf)

2021

A New Strategy for Range Verification in Proton Therapy: the Coaxial Approach (pdf)

New probe for the improvement of the Spatial Resolution in total-body PET (PROScRiPT) (pdf)

2018

Evaluation and Validation of a Sensitivity Model for a Three-layer LaBr3 Compton Telescope (pdf)

2017

Improving MACACO, a Compton Telescope for Treatment Monitoring in Hadron Therapy (pdf)

Impact of the ring resolution on the performance of the dual ring high resolution silicon PET (pdf)

Performance improvement of MACACO, a Compton telescope for treatment monitoring in hadron therapy (pdf)

2016

Evaluation of geometrical arrangements of high resolution sensors in PET probe configuration (pdf)

2015

Characterization and Simulation Results of a Two/Three-Layer Compton Telescope with LaBr3 and SiPMs

Simulation Study of Sensitivity and Resolution for a Small Animal PET Ring Based on Continuous Crystals

Estimation of accidental coincidences in PET

AX-PET: from demonstrator towards a full-ring brain scanner

European ENVISION project for improving time resolution in PET systems

2013

The application of the axial PET concept to novel imaging scenarios

Long axial crystals for pet applications: the ax-pet demonstrator and beyond

Optimizing secondary radiation imaging systems for range verification in hadron therapy

Electronics upgrade and crystal geometry optimization for a sub-millimeter small animal PET based on continuous crystals and SiPMs

Noise evaluation of prompt-gamma technique for proton-therapy range verification using a compton camera

P. G. Ortega, I. Torres-Espallardo, T. T. Bohlen, F. Cerutti, M. P. W. Chin, A. Ferrari, J. E. Gillam, C. Lacasta, G. Llosa, J. F. Oliver, M. Rafecas, P. P. Sala, P. Solevi
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE, October , pages 1-7

Second LaBr3 compton telescope prototype

Sistema de adquisición de datos para fotomultiplicadores de silicio

Range monitoring in protontherapy by means of secondary radiation detection

Introducing the research activities developed within the Grupo de Física en la Imagen Médica

Fotomultiplicadores de silicio y aplicaciones a la física médica

Development of a three layers Compton telescope prototype based on continuous LaBr3 crystals and silicon photomultipliers

Tomógrafo PET de alto rendimiento basado en la tecnología cristal continuo/SiPM.

2012

Comparison study of RPC and crystal based PET systems for hadron therapy monitoring

Singles-prompts-randoms: estimation of spurious date rates in PET

Studies for performance improvement of a small animal PET prototype based on continuous LYSO crystals and SiPM matrices

Multichannel DAQ system for SiPM matrices

Reconstruction from truncated projections using constrained total-variation minimization applied to PET for hadron-therapy monitoring

Simulated one pass listmode for fully 3D image reconstruction of compton camera data

Test of a compton telescope prototype based on continuous LaBr3 crystals and silicon photomultipliers

Monolithic crystals on SiPM arrays in a prototype system with depth of interaction estimation

DAQ system for the readout of silicon pixel detectors based on VataGP7 front-end ASIC

A laboratory PET scanner with silicon detectors segmented to 1 mm detection cells

Silicon photomultipliers in pet and hadrontherapy applications

Comparison of prompt-gamma and positron imaging for hadron-therapy monitoring

Inclusion of inter crystal scatter data in pet

2011

Detectors based on silicon photomultiplier arrays for medical imaging applications

Coincidence Tests of a Compton Telescope Based on Continuous LaBr3 Crystals and SiPMs for Dose Monitoring in Hadron Therapy

Simulation Study of Resistive-Plate-Chambers based PET for hadron-therapy monitoring

Simulated One-Pass List-Mode : A Highly Flexible Method of Image Reconstruction for PET

Hodoscope Coincidence Imaging for Hadron Therapy Using a Compton Camera

Development of a PET Prototype with Continuous LYSO Crystals and Monolithic SiPM Matrices

Position Reconstruction in Detectors Based on Continuous Crystals Coupled to Silicon Photomultiplier Arrays

System Response Matrix Denoising in Measurement Space in PET

Characterization and Performance of a DAQ System for the Read-out of Silicon Pixel Detectors

Data Acquisition System for the Readout of SiPM Matrix with the VATA64HDR16 Front-End ASIC

Analytical image reconstruction strategies for AX-PET data

The ax-pet concept: new developments and tomographic imaging

Narrowing coincidence timing window through time-walk correction in silicon ring enhanced PET scanner

Simulations of the 4DMPET SiPM-Based PET Module

Aplicaciones de los fotomultiplicadores de silicio en imagen médica: medicina nuclear y hadronterapia

A data acquisition system for the readout of Madeira PET Probe

Multiple Resolution PET Data: Image Properties using the List–Mode ML–EM Reconstruction Algorithm

Image Reconstruction for AX–PET: Different Approaches to Histograming for Semi-Continuous Data

Quality Assessment of Monte Carlo Based System Response Matrices in PET

An Efficient Method of Reconstruction for AXPET Data: Simulated One–Pass List–Mode

Observing the high resolution capabilities of a silicon PET insert probe

Full modeling of AX-PET, a new PET device with axially oriented crystals, based on Geant4 and GATE

Using Spherical Basis Functions on a Polar Grid for Iterative Image Reconstruction in Small Animal PET

Singles-prompt, a novel method to estimate random coincidences by using prompts and singles information

A compton imaging algorithm for on-line monitoring in hadron therapy

2010

Monte-Carlo modelling of a silicon detector insert combined with a PET scanner

AX-PET: concept, proof of principle and first results with phantoms

Reduction of random coincidences in small animal PET using artificial neural networks

First pet imaging results with continuous lyso crystals and monolithic, 64-pixel sipm matrices

Joint reconstruction of image and motion for PET: displacement fields versus a b-spline motion model

Polar voxelization schemes combined with a monte-carlo based system matrix for image reconstruction in high resolution pet

Joint reconstruction of image and motion for PET using linear diffusion regularization

Iterative image reconstruction images using polar and spherical basis functions for positron emission tomography

Caracterización de detectores y adquisición de datos de un primer tomógrafo pet con cristales lyso continuos y matrices de fotomultiplicadores de silicio de 64 elementos

Caracterización de un detector de labr3 acoplado a una matriz de fotomultiplicadores de silicio

2009

Simultaneous reconstruction of image and motion in gated positron-emission-tomography

First results from the AX-PET demonstrator

LabPET inter-crystal scatter study using GATE

Joint reconstruction of image and motion in gated positron-emission-tomography

ML-EM implementation on a GPU: avoiding simultaneous read-modify-write processes.

ML-EM implementation on a GPU: avoiding simultaneous read-modify-write processes

Blind motion compensation for positron-emission-tomography

2008

Combined motion compensation and reconstruction for PET

Revisiting the singles rate method for modeling accidental coincidences in PET

Development and validation of a GATE simulation model for the LabPET scanner

Comparison of coincidence identification techniques for high resolution PET

Coincidence identification in PET using neural networks

A demonstrator for a new axial PET concept

2007

Quantification issues in imaging data of MADPET-II small animal PET scanner using a system matrix based on Monte Carlo techniques

PET iterative reconstruction using pseudo-Wu raytracer

Sensitivity in PET: Neural networks as an alternative to compton photons LOR analysis

2006

Polar pixels for high resolution small animal PET

Evaluation of different random estimation methods for the MADPET-II small animal PET scanner using GATE

Congress contributions

2024

Status of MACACO and FALCON Compton cameras for medical applications

Compton cameras for cancer treatment assessment

ICOR – Compton imaging in radionuclide therapy

First Radionuclide Imaging Tests with MACACOIII+ Compton camera

IRIS innovative detectors for medical applications

Sistema de detección e imagen mediante fotones

Compton cameras for radiopharmaceutical therapy assessment

Instrumentation for medical applications

Overview instrumental developments for PT @ CV

Prevention of mechanical collisions during proton therapy treatment planning in RayStation: a shared platform for all Spanish proton centers

A New Strategy for Range Verification in Proton Therapy: the Coaxial Approach

From MACACO to FALCON: Compton camera prototypes for proton beam range verification

2023

Imaging Ac-225 with MACACO III Compton Camera

Neural Network-Based Localization of Photon Interactions in Monolithic Scintillators

3D position determination in LaBr3 monolithic crystals with convolutional neural networks

Evaluation of MACACO III Compton camera for assessment of radiopharmaceutical treatments

Inter-Crystal Scatter in a Novel Brain Dedicated PET Detector with 3D Spatial Information

From MACACOp to FALCON, characterization and in-beam tests

PET-Compton camera integration: towards a compact alternative to PET-SPECT

Improvement studies of Compton cameras over gamma cameras in nuclear medicine treatments

Individualized treatment verification based on photon emission

Comparison between a simple analytical method and Monte-Carlo simulations on heterogeneities in low rate brachytherapy

Advances in medical physics from Nuclear and HEP

Advances in the development of Compton cameras for treatment verification

Effect of electron space-charge on the gain of a two-dimensional photomultiplier tube model

Advances and test results with MACACO Compton camera

Range monitoring in proton therapy using the J-PET scanner

Compact detector for coaxial monitoring of prompt gamma-rays for proton therapy range verification

Background study in a Compton camera for treatment monitoring

Compton camera performance as treatment monitoring system at a Proton therapy center

MACACO imaging system for hadron therapy treatment monitoring

A New Strategy for Range Verification in Proton Therapy: the Coaxial Approach

2022

MACACO III first evaluation for Nuclear Medicine imaging

Latest advances in a Compton camera for medical applications

MACACOp Compton camera performance at proton therapy centres

Experimental comparison of Prompt Gamma-ray Imaging and Spectroscopy under equalized conditions using an anthropomorphic head phantom

Evaluation of the detector material in MACACO III Compton camera

Estimating Inter-Crystal Scatter in a Novel PET Module Design Using Depth of Interaction Information

Proton range verification with MACACO III Compton camera in a hadrontherapy center

Radiotracer imaging of phantoms and patients with MACACO III Compton camera

Improving Compton camera imaging of multi-energy radioactive sources by using Neural Networks for event selection

Assessment of a veto system for background rejection in MACACO III Compton camera

Simulation of Electron Transport and Secondary Emission in a Photomultiplier Tube

PMT system for prompt gamma-ray measurements during proton therapy treatments

Last developments and applications of the MACACO III Compton camera

2015

IRIS technological developments in PET and Hadron Therapy.

Characterization and Simulation Results of a Two/Three-Layer Compton Telescope with LaBr3 and SiPMs.

Simulation Study of Sensitivity and Resolution for a Small Animal PET Ring Based on Continuous Crystals.

A Compton Telescope for Ion-Beam Therapy Monitoring: from Monte Carlo Modeling to First on-Beam tests.

Brain PET Imaging Based on the Axial PET Concept: a Simulation Study