El CRAI romandrà tancat del 24 de desembre de 2025 al 6 de gener de 2026. La validació de documents es reprendrà a partir del 7 de gener de 2026.
El CRAI permanecerá cerrado del 24 de diciembre de 2025 al 6 de enero de 2026. La validación de documentos se reanudará a partir del 7 de enero de 2026.
From 2025-12-24 to 2026-01-06, the CRAI remain closed and the documents will be validated from 2026-01-07.
 
Carregant...
Miniatura

Tipus de document

Article

Versió

Versió acceptada

Data de publicació

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/214176

HRFlexToT: A High Dynamic Range ASIC for Time-of-Flight Positron Emission Tomography

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

Abstract: Time-of-Flight positron emission tomography scanners demand fast and efficient photo sensors and scintillators coupled to fast readout electronics. This article presents the high resolution flexible Time-over-Threshold (HRFlexToT), a 16-channel application-specific-integrated circuit for silicon photomultipliers (SiPM) anode readout manufactured using XFAB 0.18- μm CMOS technology. The main features of the HRFlexToT are a linear Time-over-Threshold with an extended dynamic range (10 bits) for energy measurement, low power consumption (≈ 3.5 mW/ch), and an excellent timing response. The experimental measurements show an energy linearity error of ≈ 3% and an energy resolution of about 12% at 511 keV. Single-photon time resolution measurements performed using an Fondazione Bruno Kessler (FBK) SiPM NUV-HD ( 4×4 mm2 pixel, 40- μm cell) and a Hamamatsu SiPM S13360-3050CS are around 142 and 167 ps full width at half maximum (FWHM), respectively. Coincidence time resolution (CTR) measurements with small cross-section pixelated crystals (LSO:Ce,Ca 0.4%, 2×2×5 mm3) coupled to the same Hamamatsu S13360-3050CS and FBK NUV-HD sensors yield a CTR of 117 ps and 119 ps, respectively. Measurements performed with a large cross-section monolithic crystal (LFS crystal measuring 25×25×20 mm3) and a Hamamatsu SiPM array S13361-6050NE-04 show a CTR of 324 ps FWHM after time-walk and time-skew correction.

Citació

Citació

SÁNCHEZ, David, GÓMEZ, Sergio, MAURICIO FERRÉ, Joan, FREIXAS, Lluis, SANUY CHARLES, Andreu, GUIXÉ, Gerard, LÓPEZ, Albert, MANERA ESCALERO, Rafel, MARÍN, Jesús, PÉREZ, José.m., PICATOSTE OLLOQUI, Eduardo, PUJOL, Carolina, SANMUKH, Anand, RATO, Pedro, VELA, Óscar, GASCÓN FORA, David. HRFlexToT: A High Dynamic Range ASIC for Time-of-Flight Positron Emission Tomography. _IEEE Transactions on Radiation and Plasma Medical Sciences_. 2022. Vol. 6, núm. 1, pàgs. 51-67. [consulta: 8 de gener de 2026]. ISSN: 2469-7311. [Disponible a: https://hdl.handle.net/2445/214176]

Exportar metadades

JSON - METS

Compartir registre