Evaluation of a PET Prototype Using LYSO:Ce Monolithic Detector Block

We have analyzed the performance of a PET demonstrator formed by two sectors of four monolithic detector blocks placed face-to-face. Both front-end and read-out electronics have been evaluated by means of coincidence measurements using a rotating 22Na source placed at the center of the sectors in order to emulate the behavior of a complete full ring. A continuous training method based on neural network (NN) algorithms has been carried out to determine the entrance points over the surface of the detectors. Reconstructed images from 1 MBq 22Na point source and 22Na Derenzo phantom have been obtained using both filtered back projection (FBP) analytic methods and the OSEM 3D iterative algorithm available in the STIR software package [1]. Preliminary data on image reconstruction from a 22Na point source with �� = 0.25 mm show spatial resolutions from 1.7 to 2.1 mm FWHM in the transverse plane. The results confirm the viability of this design for the development of a full-ring brain PET scanner compatible with magnetic resonance imaging for human studies.

Realizaci��n de Mapa Estrat��gico de Ruido de las Carreteras de la Red del Estado (A-3 - zona Campus Sur de la U.P.M.)

En cumplimiento de la Directiva 2002/49/CE en lo referente a carreteras, se han llevado a cabo en Espa��a, en el a��o 2007, los mapas estrat��gicos de ruido (MER) de los grandes ejes viarios de m��s de 6 millones de veh��culos / a��o (datos 2006). En esta categor��a se encuentra la carretera A-3 a su paso por el Campus Sur de la U.P.M. De acuerdo con el pliego de prescripciones t��cnicas, estos MER se dividen en fase A o de estudio b��sico y fase B o de estudio de detalle. En el proyecto denominado ���Realizaci��n de Mapa Estrat��gico de Ruido de las carreteras de la Red del Estado (A-3 - Zona Campus sur de la U.P.M.)��� se muestran los resultados de informaci��n p��blica de fase A del Mapa Estrat��gico de Ruido (MER) para la carretera A-3 en la Comunidad de Madrid. Teniendo en cuenta dichos resultados y la no elecci��n del Campus Sur en la fase B (detalle) de dicho MER; en el presente proyecto se realiza el Mapa Estrat��gico de fase B del Campus Sur de la U.P.M. para el gran ejes viarios (A-3), de cumplimiento de la Directiva 2002/49/CE y siguiendo las indicaciones del pliego de prescripciones t��cnicas para esta primera fase de entregas de 2007 y utilizando para ello Sistemas de Informaci��n Geogr��fica (SIG). Se justifica, seg��n los resultados obtenidos, si hubiera sido necesaria su inclusi��n en esta fase de estudio. Una vez establecidas las diferencias entre Mapa Estrat��gico de Ruido (MER) y Mapa de Ruido (MR), se analizan los diversos criterios t��cnicos que debe tomar un consultor ac��stico durante la realizaci��n de un MER y c��mo estos pueden afectar al resultado final siendo todos ellos v��lidos pero creando una falta de homogeneidad entre los diferentes MER seg��n el autor del estudio. Se describen las diferentes acciones que se est��n tomando tras la entrega de 2007 para intentar solucionar este problema de cara a las nuevas entregas. ABSTRACT: The environmental Noise Directive 2002/49/EC has clear requirements to Member States in terms of Strategic Noise Maps according to roads. So, have been carried out in Spain, in 2007, Strategic Noise Maps of the major roads which have more than six million vehicle passages a year (2006 data) where the A-3 road near ���Campus Sur U.P.M.��� is included. In accord with the statement of technical requirements, these Strategic Noise Maps are divided into A phase (Basic study) and B phase (detailed study). The present project by the name of "Implementation of Strategic Noise Map of Spanish Roads (A-3 ��� Campus Sur U.P.M. area)" shows the results of Strategic Noise Map for the A-3 in the Community of Madrid (A phase, public information ��� EGRA project Spanish Ministry of Transport). According to de study results and the not election of ���Campus Sur��� to B phase (detail), in this project has been made the B phase of Strategic Map in compliance with Directive 2002/49/EC, following the technical requirements specifications for the first phase of deliveries (2007) and using Geographic Information Systems (GIS) to carry on them. Is justified, in accordance with the results, if it was necessary to include ���Campus Sur��� in this B phase of study. Once established the differences between Strategic Noise Map and Noise Map, the present project examines the technical criteria that must take an acoustic consultant for the realization of a Strategic Map and how these criteria could affect the quality of the final results being all of them valid but it generate a lack of homogeneity between the different Strategic Noise Map by the author of the study. There wasn���t so much experience in Spain in the methodology proposed by the European Noise Directive. The actions that are being taken after delivery of 2007 to try to solve this problem and get harmonized the results among the whole network for the new deliveries each five years are shown at the present project.

Modelos de transposici��n de las Directivas 2002/91/CE y 2010/31/UE ���Energy Performance Building Directive��� en los Estados miembros de la UE. Consecuencias e implicaciones

Energy performance building directive? en los estados miembros de la UE. Consecuencias e implicaciones?