A front-end readout mixed chip for high-efficiency small animal PET imaging
| العنوان: | A front-end readout mixed chip for high-efficiency small animal PET imaging |
|---|---|
| المؤلفون: | J.D. Berst, D. Staub, Ch. Hu-Guo, C. Colledani, Yann Hu, N. Ollivier-Henry, N.A. Mbow, J.L. Guyonnet |
| المساهمون: | Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Nuclear Instruments and Methods in Physics Research A 1st International Conference on Molecular Imaging Technology-EuroMedlm 2006 1st International Conference on Molecular Imaging Technology-EuroMedlm 2006, May 2006, Marseille, France. Elsevier, 571, pp.312-316, 2007, ⟨10.1016/j.nima.2006.10.090⟩ |
| بيانات النشر: | HAL CCSD, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Nuclear and High Energy Physics, Temporal Resolution, Charge measurement, Preamplifier, [SDV.IB.IMA]Life Sciences [q-bio]/Bioengineering/Imaging, 02 engineering and technology, 01 natural sciences, Signal, Lyso, Front and back ends, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Instrumentation, Electronic readout, Physics, Spatial resolution, 85.40.−e, 29.40.Mc, 29.40.Gx, 010308 nuclear & particles physics, 020208 electrical & electronic engineering, Detector, Chip, Trigger, Gamma radiation, Temporal resolution, Full custom, Positron Emission Tomography |
| الوصف: | International audience; Today, the main challenge of Positron Emission Tomography (PET) systems dedicated to small animal imaging is to obtain high detection efficiency and a highly accurate localization of radioisotopes. If we focus only on the PET characteristics such as the spatial resolution, its accuracy depends on the design of detector and on the electronics readout system as well. In this paper, we present a new design of such readout system with full custom submicrometer CMOS implementation. The front end chip consists of two main blocks from which the energy information and the time stamp with subnanosecond resolution can be obtained. In our A Multi-Modality Imaging System for Small Animal (AMISSA) PET system design, a matrix of LYSO crystals has to be read at each end by a 64 channels multianode photomultiplier tube. A specific readout electronic has been developed at the Hubert Curien Multidisciplinary Institute (IPHC, France). The architecture of this readout for the energy information detection is composed of a low-noise preamplifier, a CR-RC shaper and an analogue memory. In order to obtain the required dynamic range from 15 to 650 photoelectrons with good linearity, a current mode approach has been chosen for the preamplifier. To detect the signal with a temporal resolution of 1 ns, a comparator with a very low threshold (0.3 photoelectron) has been implemented. It gives the time reference of arrival signal coming from the detector. In order to obtain the time coincidence with a temporal resolution of 1 ns, a Time-to-Digital Converter (TDC) based on a Delay-Locked-Loop (DLL) has been designed. The chip is fabricated with AMS 0.35 μm process. The ASIC architecture and some simulation results will be presented in the paper. |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60b30ccdf4ed3e8809954fe08c94f487 http://hal.in2p3.fr/in2p3-00139655 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....60b30ccdf4ed3e8809954fe08c94f487 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |