SRF2011 - List of Authors (Kedzie, M.)

Paper

Title

Page

A Flexible System for the High Pressure Rinsing of SRF Cavities

456

R.C. Murphy, S.M. Gerbick, M. Kedzie, M.P. Kelly, T. Reid
ANL, Argonne, USA

Funding: This work was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357.
The Physics Division SRF group at Argonne National Laboratory is building a new, high pressure rinse system for the joint ANL/FNAL Superconducting Cavity Surface Processing Facility (SCSPF). The rinsing tool can be easily reconfigured vertically or horizontally to process a variety of SRF cavity shapes and sizes including elliptical, spoke, quarter- and half-wave cavities. The system has been commissioned with a new 72 MHz β=0.077 quarter wave cavity as part of the ATLAS Intensity Upgrade at ANL. The tool is also designed to rinse 1.3 GHz elliptical single-cell and 9-cell cavities, as well as the new 650 MHz elliptical cavities under development for Project-X and Fermilab. This work was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357.

THIOB04

SRF Advances for ATLAS and other β<1 Applications

680

M.P. Kelly, Z.A. Conway, S.M. Gerbick, M. Kedzie, R.C. Murphy, B. Mustapha, P.N. Ostroumov, T. Reid
ANL, Argonne, USA

The guiding principle for the design of the new 72 MHz quarter wave SC cavities at Argonne was to provide the maximum possible accelerating gradient along the linac with large acceptance and minimal beam losses. Cavities will be installed into ATLAS in 2012 as the beam intensity upgrade, but are also intended for the next generation of ion linacs to be used in basic and applied science and technology. State-of-the-art cavity designs and fabrication techniques developed at ANL have been applied to the construction of the first prototype. Tests of the prototype 72 MHz QWR demonstrate the highest performance achieved to date for this class of cavity designed to cover the velocity range 0.06<β<0.12. The cavity has very low RF losses and the highest accelerating gradients ever achieved for any quarter-wave structure. Indeed, the accelerating voltage of 4.3 MV is roughly four times higher than that reported for the best SC cavities in this velocity range currently in operation at any facility worldwide. Also, this demonstrated 4.3 MV accelerating voltage substantially exceeds the 2.5 MV design voltage.

Slides THIOB04 [3.571 MB]

Paper	Title	Page
TUPO034	A Flexible System for the High Pressure Rinsing of SRF Cavities	456
	R.C. Murphy, S.M. Gerbick, M. Kedzie, M.P. Kelly, T. Reid ANL, Argonne, USA
	Funding: This work was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357. The Physics Division SRF group at Argonne National Laboratory is building a new, high pressure rinse system for the joint ANL/FNAL Superconducting Cavity Surface Processing Facility (SCSPF). The rinsing tool can be easily reconfigured vertically or horizontally to process a variety of SRF cavity shapes and sizes including elliptical, spoke, quarter- and half-wave cavities. The system has been commissioned with a new 72 MHz β=0.077 quarter wave cavity as part of the ATLAS Intensity Upgrade at ANL. The tool is also designed to rinse 1.3 GHz elliptical single-cell and 9-cell cavities, as well as the new 650 MHz elliptical cavities under development for Project-X and Fermilab. This work was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357.

THIOB04	SRF Advances for ATLAS and other β<1 Applications	680
	M.P. Kelly, Z.A. Conway, S.M. Gerbick, M. Kedzie, R.C. Murphy, B. Mustapha, P.N. Ostroumov, T. Reid ANL, Argonne, USA
	The guiding principle for the design of the new 72 MHz quarter wave SC cavities at Argonne was to provide the maximum possible accelerating gradient along the linac with large acceptance and minimal beam losses. Cavities will be installed into ATLAS in 2012 as the beam intensity upgrade, but are also intended for the next generation of ion linacs to be used in basic and applied science and technology. State-of-the-art cavity designs and fabrication techniques developed at ANL have been applied to the construction of the first prototype. Tests of the prototype 72 MHz QWR demonstrate the highest performance achieved to date for this class of cavity designed to cover the velocity range 0.06<β<0.12. The cavity has very low RF losses and the highest accelerating gradients ever achieved for any quarter-wave structure. Indeed, the accelerating voltage of 4.3 MV is roughly four times higher than that reported for the best SC cavities in this velocity range currently in operation at any facility worldwide. Also, this demonstrated 4.3 MV accelerating voltage substantially exceeds the 2.5 MV design voltage.
	Slides THIOB04 [3.571 MB]