The Effect of Noise on Transverse Emittance Growth in the Tevatron
Title | The Effect of Noise on Transverse Emittance Growth in the Tevatron PDF eBook |
Author | |
Publisher | |
Pages | |
Release | 2000 |
Genre | |
ISBN |
Emittance growth due to noise from a transverse beam feedback system are discussed. A theory for calculating emittance growth rate as a function of the feedback system's measured open loop transfer function is derived. A simple feedback system was installed, measured, and tested in the Fermilab Tevatron, and the emittance growth rate results agree very closely with the theory.
Common Mode Noise on the Main Tevatron Bus and Associated Beam Emittance Growth
Title | Common Mode Noise on the Main Tevatron Bus and Associated Beam Emittance Growth PDF eBook |
Author | |
Publisher | |
Pages | 4 |
Release | 1991 |
Genre | |
ISBN |
Overlap of betatron tune frequencies with the power supply noise spectrum can cause transverse beam emittance growth in a storage ring. We have studied this effect for tunes near the integer, where the betatron frequency is low. By injecting noise onto the main power supply bus, it was determined that common mode noise was the dominant source of emittance growth. A noise suppression feed-back loop was then used to reduce the noise and the emittance growth. These experiments are described as are investigations of the common mode propagation along the Tevatron bus and measurements of the fields generated by common mode excitation of isolated Tevatron magnets. 3 refs., 4 figs.
Accelerator Physics at the Tevatron Collider
Title | Accelerator Physics at the Tevatron Collider PDF eBook |
Author | Valery Lebedev |
Publisher | Springer |
Pages | 496 |
Release | 2014-05-29 |
Genre | Science |
ISBN | 1493908855 |
This book presents the developments in accelerator physics and technology implemented at the Tevatron proton-antiproton collider, the world’s most powerful accelerator for almost twenty years prior to the completion of the Large Hadron Collider. The book covers the history of collider operation and upgrades, novel arrangements of beam optics and methods of orbit control, antiproton production and cooling, beam instabilities and feedback systems, halo collimation, and advanced beam instrumentation. The topics discussed show the complexity and breadth of the issues associated with modern hadron accelerators, while providing a systematic approach needed in the design and construction of next generation colliders. This book is a valuable resource for researchers in high energy physics and can serve as an introduction for students studying the beam physics of colliders.
EPAC, European Particle Accelerator Conference
Title | EPAC, European Particle Accelerator Conference PDF eBook |
Author | Sergio Tazzari |
Publisher | World Scientific Publishing Company |
Pages | 798 |
Release | 1989 |
Genre | Science |
ISBN |
Tevatron Admittance Measurement
Title | Tevatron Admittance Measurement PDF eBook |
Author | C. Y. Tan |
Publisher | |
Pages | 3 |
Release | 2005 |
Genre | |
ISBN |
We measured the Tevatron beam admittance by the means of exciting the beam with noise and causing emittance growth. The noise power was about 3W with a bandwidth of 100Hz and centered either in the horizontal betatron frequency or vertical betatron frequency. We were able to controllably blow the beam emittance up quickly. From the point where the beam emittance stopped growing, we measured the beam acceptance of the Tevatron.
Energy Research Abstracts
Title | Energy Research Abstracts PDF eBook |
Author | |
Publisher | |
Pages | 922 |
Release | 1993 |
Genre | Power resources |
ISBN |
Proceedings of the 1989 IEEE Particle Accelerator Conference
Title | Proceedings of the 1989 IEEE Particle Accelerator Conference PDF eBook |
Author | |
Publisher | |
Pages | 770 |
Release | 1989 |
Genre | Particle accelerators |
ISBN |