Luc Salvo

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Recent techr.tologicaJ developments have opened the possibility to construct a device which we call a knac Coherent Light Source (LCLS)[l4]; a fourth generation light source, with brightness, coherence, and peak power far exceeding other sources. Gperating on the principle of the free electron laser (FEL), the LCLS would extend the range of FEL operation to(More)
In recent years significant studies have been initiated on the feasibility of utilizing a portion of the 3km S-band accelerator at SLAC to drive a short wavelength (4.5-1.5 Å) Linac Coherent Light Source (LCLS), a Free-Electron Laser (FEL) operating in the Self-Amplified Spontaneous Emission (SASE) regime. Electron beam requirements for single-pass(More)
Nowadays, it is possible to build a multi-GPU supercomputer, well suited for implementation of digital signal processing algorithms, for a few thousand dollars. However, to achieve the highest performance with this kind of architecture, the programmer has to focus on inter-processor communications, tasks synchronization. In this paper, we propose a high(More)
In order to extend the industrial use of SuperPlastic Forming (SPF), efforts have been devoted in the recent past to reduce forming times. The more spectacular result is probably the development of the so-called Quick Plastic Forming (QPF) technology which has been particularly investigated in the US automotive industry. QPF has been mainly studied in the(More)
In this article, we present an optimized GPU implementation of a granulometry algorithm which is used a lot in the study of material domain. The main contribution to this algorithm is the binarization of the input data which increases throughput while reducing data allocated memory space. Also, the optimized GPU implementation brings an order of magnitude(More)
Nowadays, it is possible to build a multi-GPU supercomputer, well suited for implementation of digital signal processing algorithms, for a few thousand dollars. However, to achieve the highest performance with this kind of architecture, the programmer has to focus on inter-processor communications, tasks synchronization … In this paper, we propose a(More)
INTRODUCTION The subarachnoid haemorrhage non traumatic assumes between the 6-8% of all acute cerebrovascular, besides is more frequent in young persons. The mortility and mortality is high and the predictive factors of the worse prognostic in unknown. MATERIAL AND METHODS In the present work, we realized a study of the patients admitted to our intensive(More)
We describe the design of an FEL Amplifier Test Experiment (FATE) 1 to demonstrate the superradiant short bunch regime of a Free Electron Laser in the 1-3 m wavelength range starting from noise. The relevance to the LCLS X-ray FEL [1] proposal is discussed and numerical simulations are shown. It is numerically demonstrated for the first time with the 2-D(More)
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