SRF2011 - List of Authors (Kaplan, R.P.K.)

Paper	Title	Page
MOPO067	CW Measurements of Cornell LLRF System at HoBiCaT	262
	A. Neumann, W. Anders, R. Görgen, J. Knobloch, O. Kugeler HZB, Berlin, Germany S.A. Belomestnykh BNL, Upton, Long Island, New York, USA J. Dobbins, R.P.K. Kaplan, M. Liepe, C.R. Strohman CLASSE, Ithaca, New York, USA
	Funding: Work funded by the Bundesministerium für Bildung und Forschung and Land Berlin. In Energy Recovery Linacs, such as the Cornell ERL or BERLinPro, the main linac cavities are operated in CW at low beam-loading. The choice of the external Q is given by two competing factors: The achievable field stability and the maximum provided RF power. To determine the optimum external Q, LLRF measurements with the Cornell system were performed at HoBiCaT to study the field stability at given microphonics detuning of a TESLA cavity for different gain settings and external Q values. Stable operation at external Q up to 2·10⁸ was demonstrated with field's phase stability of 0.02 degrees.

Paper

Title

Page

CW Measurements of Cornell LLRF System at HoBiCaT

262

A. Neumann, W. Anders, R. Görgen, J. Knobloch, O. Kugeler
HZB, Berlin, Germany
S.A. Belomestnykh
BNL, Upton, Long Island, New York, USA
J. Dobbins, R.P.K. Kaplan, M. Liepe, C.R. Strohman
CLASSE, Ithaca, New York, USA

Funding: Work funded by the Bundesministerium für Bildung und Forschung and Land Berlin.
In Energy Recovery Linacs, such as the Cornell ERL or BERLinPro, the main linac cavities are operated in CW at low beam-loading. The choice of the external Q is given by two competing factors: The achievable field stability and the maximum provided RF power. To determine the optimum external Q, LLRF measurements with the Cornell system were performed at HoBiCaT to study the field stability at given microphonics detuning of a TESLA cavity for different gain settings and external Q values. Stable operation at external Q up to 2·10⁸ was demonstrated with field's phase stability of 0.02 degrees.