2011 Particle Accelerator Conference - List of Authors (Tan, C.-Y.)

Paper	Title	Page
MOP224	A Data Acquisition System for Longitudinal Beam Properties in a Rapid Cycling Synchrotron	522
	J. Steimel, C.-Y. Tan Fermilab, Batavia, USA
	Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. A longitudinal beam properties, data acquisition system has been commissioned to operate in the Fermilab booster ring. This system captures real time information including beam synchronous phase, bunch length, and coupled bunch instability amplitudes as the beam is accelerated from 400MeV to 8GeV in 33ms. The system uses an off-the-shelf Tektronix oscilloscope running Labview software and a synchronous pulse generator. This paper describes the hardware configuration and the software configuration used to optimize the data processing rate.

WEP115	The FNAL Injector Upgrade	1701
	C.-Y. Tan, D.S. Bollinger, K.L. Duel, J.R. Lackey, W. Pellico Fermilab, Batavia, USA
	The present FNAL linac H⁻ injector has been operational since the 1970s and consists of two magnetron H⁻ sources and a 750keV Cockcroft-Walton Accelerator. In the upgrade, both slit-type magnetron sources will be replaced with circular aperture sources, and the Cockcroft-Walton with a 200MHz RFQ. Operational experience at BNL (Brookhaven National Laboratory) has shown that the upgraded source and RFQ will be more reliable and require less manpower than the present system.

WEP116	Bucket Shaking Stops Bunch Dancing in Tevatron	1704
	A.V. Burov, C.-Y. Tan Fermilab, Batavia, USA
	Bunches in Tevatron are known to be longitudinally unstable: their collective oscillations stay without any sign of decay. Typically, a feedback damper is used to stop these oscillations. Recently, it was theoretically predicted that the oscillations can be stabilized by means of small bucket shaking. Detailed measurements in Tevatron have shown that this method does work. In this paper, an essential theory and specific observations of the related process are presented. A. Burov, “Dancing Bunches as van Kampen Modes”, this conference.

Paper

Title

Page

A Data Acquisition System for Longitudinal Beam Properties in a Rapid Cycling Synchrotron

522

J. Steimel, C.-Y. Tan
Fermilab, Batavia, USA

Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
A longitudinal beam properties, data acquisition system has been commissioned to operate in the Fermilab booster ring. This system captures real time information including beam synchronous phase, bunch length, and coupled bunch instability amplitudes as the beam is accelerated from 400MeV to 8GeV in 33ms. The system uses an off-the-shelf Tektronix oscilloscope running Labview software and a synchronous pulse generator. This paper describes the hardware configuration and the software configuration used to optimize the data processing rate.

WEP115

The FNAL Injector Upgrade

1701

C.-Y. Tan, D.S. Bollinger, K.L. Duel, J.R. Lackey, W. Pellico
Fermilab, Batavia, USA

The present FNAL linac H⁻ injector has been operational since the 1970s and consists of two magnetron H⁻ sources and a 750keV Cockcroft-Walton Accelerator. In the upgrade, both slit-type magnetron sources will be replaced with circular aperture sources, and the Cockcroft-Walton with a 200MHz RFQ. Operational experience at BNL (Brookhaven National Laboratory) has shown that the upgraded source and RFQ will be more reliable and require less manpower than the present system.

WEP116

Bucket Shaking Stops Bunch Dancing in Tevatron

1704

A.V. Burov, C.-Y. Tan
Fermilab, Batavia, USA

Bunches in Tevatron are known to be longitudinally unstable: their collective oscillations stay without any sign of decay. Typically, a feedback damper is used to stop these oscillations. Recently, it was theoretically predicted that the oscillations can be stabilized by means of small bucket shaking*. Detailed measurements in Tevatron have shown that this method does work. In this paper, an essential theory and specific observations of the related process are presented.
* A. Burov, “Dancing Bunches as van Kampen Modes”, this conference.