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Your search keyword '"Tsuyoshi Suwada"' showing total 4 results
Start Over Author "Tsuyoshi Suwada" Journal japanese journal of applied physics
4 results on '"Tsuyoshi Suwada"'

3. Absolute Beam-Charge Measurement for Single-Bunch Electron Beams

Author

N. Akasaka, Tsuyoshi Suwada, Satoshi Ohsawa, and Kazuro Furukawa

Subjects
Physics, Beam diameter, business.industry, General Engineering, General Physics and Astronomy, Faraday cup, Electron, Beam parameter product, symbols.namesake, KEKB, Optics, symbols, Physics::Accelerator Physics, M squared, Laser beam quality, Atomic physics, business, Beam (structure)
Abstract

The absolute beam charge of a single-bunch electron beam with a pulse width of 10 ps and that of a short-pulsed electron beam with a pulse width of 1 ns were measured with a Faraday cup in a beam test for the KEK B-Factory (KEKB) injector linac. It is strongly desired to obtain a precise beam-injection rate to the KEKB rings, and to estimate the amount of beam loss. A wall-current monitor was also recalibrated within an error of ±2%. This report describes the new results for an absolute beam-charge measurement for single-bunch and short-pulsed electron beams, and recalibration of the wall-current monitors in detail.

Published
2000
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4. Performance Test of the TOPAZ Barrel Calorimeter

Author

Toshiaki Tauchi, Norihiko Ujiie, Shigeru Kuroda, Yasushi Watanabe, Setsuya Kawabata, Ryuhei Sugahara, and Tsuyoshi Suwada

Subjects
Physics, Physics::Instrumentation and Detectors, Nuclear engineering, Detector, General Engineering, General Physics and Astronomy, engineering.material, Calorimeter, law.invention, Topaz, Nuclear physics, Lead glass, law, visual_art, engineering, Measuring instrument, visual_art.visual_art_medium, Physics::Accelerator Physics, High Energy Physics::Experiment, Collider, Cherenkov radiation, Beam (structure)
Abstract

A large-scale electromagnetic calorimeter comprising 4300 lead glass Cherenkov counters has been constructed for the TOPAZ detector at the TRISTAN e + e - collider. Various beam tests have been performed to study the basic properties. The data were compared with simulated data based on the EGS4 code. In this report, the results of beam tests and a comparison to simulated data are described.

Published
1987
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