English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/84560
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Design of a smart SiPM based on focal-plane processing elements for improved spatial resolution in PET

AuthorsPozas-Flores, F. ; Carmona-Galán, R. ; Fernández-Berni, J. ; Rodríguez-Vázquez, Ángel
Issue Date2011
PublisherThe International Society for Optics and Photonics
CitationV Bioelectronics, Biomedical, and Bioinspired Systems ; and V Nanotechnology (2011)
SeriesProceedings of SPIE 8068
AbstractSingle-photon avalanche diodes are compatible with standard CMOS. It means that photo-multipliers for scintillation detectors in nuclear medicine (i. e. PET, SPECT) can be built in inexpensive technologies. These silicon photo-multipliers consist in arrays of, usually passively-quenched, SPADs whose output current is sensed by some analog readout circuitry. In addition to the implementation of photosensors that are sensitive to singlephoton events, analog, digital and mixed-signal processing circuitry can be included in the same CMOS chip. For instance, the SPAD can be employed as an event detector, and with the help of some in-pixel circuitry, a digitized photo-multiplier can be built in which every single-photon detection event is summed up by a counter. Moreover, this concurrent processing circuitry can be employed to realize low level image processing tasks. They can be efficiently implemented by this architecture given their intrinsic parallelism. Our proposal is to operate onto the light-induced signal at the focal plane in order to obtain a more elaborated record of the detection. For instance, by providing some characterization of the light spot. Information about the depth-of-interaction, in scintillation detectors, can be derived from the position and shape of the scintillation light distribution. This will ultimately have an impact on the spatial resolution that can be achieved. We are presenting the design in CMOS of an array of detector cells. Each cell contains a SPAD, an MOS-based passive quenching circuit and drivers for the column and row detection lines.
DescriptionComunicación presentada al "V Bioelectronics, Biomedical, and Bioinspired Systems V and Nanotechnology" celebrado en Praga (República Checa) del 18 al 20 de Abril del 2011.
Publisher version (URL)http://dx.doi.org/10.1117/12.888836
URIhttp://hdl.handle.net/10261/84560
DOI10.1117/12.888836
Identifiersdoi: 10.1117/12.888836
isbn: 9780819486578
Appears in Collections:(IMSE-CNM) Libros y partes de libros
Files in This Item:
File Description SizeFormat 
smart SiPM.pdf649,75 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.