Electron Beam Ion Source Pre-Injector Diagnostics

ABSTRACT NOT PROVIDE

EBIS preinjector construction status

A new heavy ion preinjector is presently under construction at Brookhaven National Laboratory. This preinjector uses an Electron Beam Ion Source (EBIS), and an WQ and IH Linac, both operating at 100.625 MHz, to produce 2 MeV/u ions of any species for use, after further acceleration, at the Relativistic Heavy Ion Collider, and the NASA Space Radiation Laboratory. Among the increased capabilities provided by this preinjector are the ability to produce ions of any species, and the ability to switch between multiple species in 1 second, to simultaneously meet the needs of both physics programs. Fabrication of all major components for this preinjector is in process, with testing of the EBIS and WQ starting this year. The status of this construction is presented

RHIC Performance for FY2011 Au+Au Heavy Ion Run

Following the Fiscal Year (FY) 2010 (Run-10) Relativistic Heavy Ion Collider (RHIC) Au+Au run, RHIC experiment upgrades sought to improve detector capabilities. In turn, accelerator improvements were made to improve the luminosity available to the experiments for this run (Run-11). These improvements included: a redesign of the stochastic cooling systems for improved reliability; a relocation of 'common' RF cavities to alleviate intensity limits due to beam loading; and an improved usage of feedback systems to control orbit, tune and coupling during energy ramps as well as while colliding at top energy. We present an overview of changes to the Collider and review the performance of the collider with respect to instantaneous and integrated luminosity goals. At the conclusion of the FY 2011 polarized proton run, preparations for heavy ion run proceeded on April 18, with Au+Au collisions continuing through June 28. Our standard operations at 100 GeV/nucleon beam energy was bracketed by two shorter periods of collisions at lower energies (9.8 and 13.5 GeV/nucleon), continuing a previously established program of low and medium energy runs. Table 1 summarizes our history of heavy ion operations at RHIC

Added value of a multi-view auto-stereoscopic 3D display in gaming applications

The longer-term use of multi-view 3D displays in gaming applications was investigated with 20 experienced gamers. During two gaming sessions, one in 2D and one in 3D, galvanic skin response and heart rate were measured (both assumed to assess emotions and presence), followed by questionnaires at the end of each session. The results show that 3D displays provoke significantly higher positive emotions and stronger feelings of presence than 2D displays, indicating that 3D displays have added value in gaming applications

Peer assessment as a method for measuring harmful internet use

Harmful Internet use (HIU) describes unintended use of the Internet. It could be both self-harm and harming others. Our research goal is to develop a more accurate method for measuring HIU by this novel peer assessment. As such, it may become, with our call for more research, a paradigm shift supplementing every rating scale or other type of Internet use assessment. In addition to classic statistical analysis, structural equations have been employed. Results indicate that the true positive rate (TPR) is substantially higher than assessed in other studies. • Peer assessment improvement. • AUC for ROC was computed to establish cut-off points for the used scale. • Results obtained by the Structural Equation model indicate that parental care has a moderate influence on subjects’ attempts to fight HIU

Towards an optimized 3D broadcast chain

In this paper will present the concept of a modular three dimensional broadcast chain, that allows for an evolutionary introduction of depth perception into the context of 2D digital TV. The work is performed within the framework of the European Information Society Technologies (1ST) project "Advanced Three-dimensional Television System Technologies" (ATTEST), bringing together the expertise of industries, research centers and universities to design a backwards-compatible, flexible and modular broadcast 3D-TV system. This three dimensional broadcast chain includes content creation, coding, transmission and display. Research in human 3D perception will be used to guide the development process. The goals of the project towards the optimized 3D broadcast chain comprise the development of a novel broadcast 3D camera, algorithms to convert existing 2D-video material into 3D. a 2D-compatible coding and transmission scheme for 3D-video using MPEG-2/4/7 technologies and the des ign of two new autostereoscopic displays

Construction of the BNL EBIS preinjector

A new heavy ion preinjector, consisting of an Electron Beam Ion Source (EBIS), an RFQ, and IH linac, is under construction at Brookhaven National Laboratory. This preinjector win provide ions of any species at an energy of 2 MeV/u, resulting in increased capabilities for the Relativistic Heavy Ion Collider, and the NASA Space Radiation Laboratory programs. The RF'Q has been commissioned with beam, and most of the remaining elements are either installed or being assembled