Nicolas Beaupere
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Nicolas Beaupere has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Cyril Lahuec
Optics Department, Institut Mines-Télécom Atlantique, Technopôle Brest Iroise, CS 83818, CEDEX 03, 29238 Brest, Brittany, France
1 shared publication - Dingbang Cai
Subatech, IMT-Atlantique, CNRS/IN2P3, Université de Nantes, F-44000 Nantes, France
1 shared publication - Dominique Thers
SUBATECH, IMT Atlantique, CNRS/IN2P3, Nantes Université, Nantes 44307, France
1 shared publication - Eric Morteau
Subatech, IMT-Atlantique, CNRS/IN2P3, Université de Nantes, F-44000 Nantes, France
1 shared publication - Fabrice Seguin
Lab-STICC, Optics Department, IMT-Atlantique, CS 83818, Cedex 3, F-29238 Brest, France
1 shared publication - Quentin Lainé
Lab-STICC, Optics Department, IMT-Atlantique, CS 83818, Cedex 3, F-29238 Brest, France
1 shared publication
Latest Publications
- Open Access
Scintillation in Liquid Xenon for Gamma-Ray Medical Imaging: From Single Time-over-Threshold to Multi-Time-over-Threshold PMT Signal Measurements
In this paper, a new light event acquisition chain in a three-gamma liquid xenon prototype for medical nuclear imaging is presented. The prototype implements the Multi-Time-Over-Threshold (MTOT) method. This method surpasses the Single-Time-Over-Threshold (STOT) by precisely determining both the number of vacuum ultraviolet (VUV) photons detected by each photomultiplier tube (PMT) and their arrival times for light signal measurement. Based on both the experimental and simulated results, the MTOT method achieved a 70% improvement in reconstructing photoelectrons (PEs) and enhanced the precision of the arrival time estimation by 20–30% compared with STOT. These results will enable an upgrade of the XEMIS2 (Xenon Medical Imaging System) camera, improving its performance as the imaged activity increases.
Open AccessScintillation in Liquid Xenon for Gamma-Ray Medical Imaging: From Single Time-over-Threshold to Multi-Time-over-Threshold PMT Signal Measurements
In this paper, a new light event acquisition chain in a three-gamma liquid xenon prototype for medical nuclear imaging is presented. The prototype implements the Multi-Time-Over-Threshold (MTOT) method. This method surpasses the Single-Time-Over-Threshold (STOT) by precisely determining both the number of vacuum ultraviolet (VUV) photons detected by each photomultiplier tube (PMT) and their arrival times for light signal measurement. Based on both the experimental and simulated results, the MTOT method achieved a 70% improvement in reconstructing photoelectrons (PEs) and enhanced the precision of the arrival time estimation by 20–30% compared with STOT. These results will enable an upgrade of the XEMIS2 (Xenon Medical Imaging System) camera, improving its performance as the imaged activity increases.