Development of hollow electron beams for proton and ion collimation

Magnetically confined hollow electron beams for controlled halo removal in high-energy colliders such as the Tevatron or the LHC may extend traditional collimation systems beyond the intensity limits imposed by tolerable material damage. They may also improve collimation performance by suppressing loss spikes due to beam jitter and by increasing capture efficiency. A hollow electron gun was designed and built. Its performance and stability were measured at the Fermilab test stand. The gun will be installed in one of the existing Tevatron electron lenses for preliminary tests of the hollow-beam collimator concept, addressing critical issues such as alignment and instabilities of the overlapping proton and electron beams.Comment: 3 pp. 1st International Particle Accelerator Conference: IPAC'10, 23-28 May 2010: Kyoto, Japa

Status and perspective of detector databases in the CMS experiment at the LHC

This note gives an overview at a high conceptual level of the various databases that capture the information concerning the CMS detector. The detector domain has been split up into four, partly overlapping parts that cover phases in the detector life cycle: construction, integration, configuration and condition, and a geometry part that is common to all phases. The discussion addresses the specific content and usage of each part, and further requirements, dependencies and interfaces

THE PRACTICE OF EVALUATING THE ECONOMIC EFFICIENCY OF THE INNOVATIVE PROJECT

At the present stage of development of the society of scientific and technical activities is the most important factor in the intensification of production and the growth of its economic performance. It is therefore important now gets to determine the effectiveness of research and development activities, improving the measurement methods of economic evaluation of innovative projects and innovation. For informed decision-making requires a deep study and objective assessment of the real situation. This is due to changes in economic relations between the producers and consumers of scientific and technical products. Earlier in this activity involved only state scientific institution and the enterprise, then now they are gradually joining financial institutions, commercial and non-profit organizations. The adoption of innovative solutions should be preceded by thorough and comprehensive analysis of the economic feasibility of the innovative project. In this paper we propose to consider how business is costing innovative projects and determine their effectiveness for the enterprise business hotel