1,721,349 research outputs found
COMPILATION OF N-P AND N-C CROSS-SECTIONS AND THEIR USE IN A MONTE-CARLO PROGRAM TO CALCULATE NEUTRON DETECTION EFFICIENCY IN PLASTIC SCINTILLATOR IN ENERGY-RANGE 1-300MEV
No full textINITIATIVES OF EFOMP IN THE FIELD OF RADIATION PROTECTION AND QUALITY ASSURANCE
No full textThe initiatives of EFOMP in the held of radiation protection and quality assurance are presented, with a particular emphasis on the activities of the Scientific Committee and the Education, Training and Professional Committee
Highlights of the "X EFOMP congress - first European conference on medical physics" Il Ciocco (LU), Italy, 20-22 September 2007
No full textState-of-the-art of PET, SPECT and CT for small animal imaging
No full textDuring the last decade we have observed a growing interest in in-vivo imaging techniques for small animals. This is due to the necessity of studying biochemical processes at a molecular level for pharmacology, genetic, and pathology investigations. Among the various "molecular imaging" techniques Positron Emission Tomography (PET) and Single Photon Emission Computed Tomography (SPECT) have represented a valuable approach in such field. On the shadow of the successful application of combined PET-CT scanners in the clinical environment, multi-modality techniques have been recently transferred to small animal scanners. This paper reports on some recent advances in small animal PET, SPECT and CT scanners. An overview of the near future perspectives is also presented. (C) 2007 Elsevier B.V. All rights reserved
From man to mouse to cell ... and back again
No full textMolecular imaging is an emerging field of research for the investigation of biological processes occurring at cellular level. This new field could help the understanding of human diseases by studying animal models. To accomplish this ambitious program, the development of novel high-performance imaging instruments such as small animal PET holds a fundamental role. This paper reports on the present state of the art in small animal PET scanners together with a spotlight view on future technologies for next generation instruments. (c) 2006 Elsevier B.V. All rights reserved
Advances in animal PET scanners
No full textNowadays, a growing number of research groups shows a great interest for the application of PET and SPECT techniques to the development of new drugs. Preliminary studies on small animals require high performance dedicated scanners with a higher spatial resolution and sensitivity than those of clinical systems. In this paper the potential applications of such innovative instruments are shown together with a brief review of the dedicated PET and SPECT tomographs developed worldwide. Most of the scanners have been built as research prototypes. only two are commercially available: micro-PET(R), designed and developed at UCLA, Los Angeles as a research prototype, and now produced and distributed by Concorde Microsystems Inc. (USA) and HIDAC PET produced by Oxford Positron Systems Ltd. (UK). Also In Italy, a high performance tomograph, YAP-(S) PET able to perform both PET and SPECT studies, has been developed at the University of Ferrara. The technical characteristics and performance of this scanner are described. Tomographs with combined imaging techniques, such as PET/CT or SPECT/CT, are now under study In various international research centers. The advantages of this new generation of animal scanners will be briefly outlined
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