For the stable high-luminosity operation and luminosity-increase, the electron and positron storage rings of the KEK B-Factory (KEKB) is equipped with various beam instrumentations, which have being working well since the start of the commissioning in December, 1998. Details and performance of the beam-position monitor system based on the spectrum analysis using DSPs, the turn by turn BPM with ...

We propose to generate steady-state microbunching in a storage ring with a reversible seeding scheme. High gain harmonic generation (HGHG) and echo-enabled harmonic generation (EEHG) are two promising methods for microbunching linac electron beams. Because both schemes increase the energy spread of the seeded beam, they cannot drive a coherent radiator turn-by-turn in a storage ring. However, r...

ITE JOURNAL / SEPTEMBER 1998 MANY URBAN AND SUBURBAN arterials are congested with little immediate hope of relief. Access management and better coordination between land use and transportation offer long-term hope for developing areas but little short-term promise for developed areas. Transportation engineers in many places have done as much as they can with actuated signals, signal systems, mu...

LINK TO PAPER The Road Ahead: Using ArcPad Maps in Census Bureau Field Activities Track: Census and Geo-Demographics Author(s): Andrea Johnson The Census Bureau is exploring the feasibility of using handheld census computers in future enumeration activities. Recently, in Sussex Co DE, the Census Bureau tested the feasibility of using maps on hand-held computer and the increases in productivity ...

An important difference exists between the way humans communicate route knowledge and the turn-by-turn route directions provided by the majority of current navigation services. Navigation services present route directions with the same amount of detail regardless the route segment’s significance in the instructions, user’s distance from the destination, and finally the level of user’s familiari...

1 Introduction " Before there were computers, we could distinguish persons from non-persons on the basis of an ability to participate in conversations. But now, we have hybrids operating between person and non persons with whom we can talk in ordinary language. " (Colby 1999). Human machine conversation as a technology integrates different areas where the core is language, and the computational...

STEP-NC (ISO 14649) is becoming a promising standard to replace or supplement the conventional G-code programs based on ISO 6983 due to its feature based machine independent characteristics and its centric role to enable efficient CAD/CAM/CNC interoperability. The re-use of Gcode programs is important for both manufacturing and capitalization of machining knowledge, nevertheless the conversion ...

The Diamond booster and storage ring are equipped with Libera Electron Beam Position Processors with turnby-turn capabilities. We describe here the turn-by-turn data acquisition system and the software used for postprocessing the beam data. The signals from the Libera boxes are acquired and controlled with EPICS and then transferred to the MATLAB environment via the MATLAB Channel Access or Lab...

A turn-by-turn vertical beam profile monitor has been developed at the Cornell Electron Storage Ring (CESR). The instrument optically images the vertical beam distribution with an array of optical fibers that transport visible synchrotron radiation to an array of photo-multiplier tubes. Each PMT signal is recorded by a turn-by-turn data acquisition system. With this instrument, we compare profi...