2011 Particle Accelerator Conference - List of Authors (Cozzolino, J.P.)

Paper	Title	Page
TUP162	Engineering Design of HTS Quadrupole for FRIB	1124
	J.P. Cozzolino, M. Anerella, A.K. Ghosh, R.C. Gupta, W. Sampson, Y. Shiroyanagi, P. Wanderer BNL, Upton, Long Island, New York, USA A. Zeller FRIB, East Lansing, Michigan, USA
	Funding: Supported by the U.S. Department of Energy under Contract DE-AC02-98CH10886 and under Cooperative Agreement DE-SC0000661 from DOE-SC that provides financial assistance to MSU for FRIB. The coils of the first quadrupole in the fragment separator region of the Facility for Rare Isotope Beams (FRIB) must withstand an intense level of radiation and accommodate a very high heat load. Magnets produced with High Temperature Superconductors (HTS) are especially suitable in such an environment. The proposed design employs second generation (2G) HTS, permitting operation at ~50K. The engineering considerations this design are summarized. The goal has been to engineer a compact, readily producible magnet with a warm bore and yoke, made from radiation-resistant materials, capable of operating within the heat load limit, whose four double-layered coils will be adequately restrained under high radial Lorentz forces. Results of ANSYS finite element thermal and structural analyses of the coil clamping system are presented. Coil winding, lead routing and splicing, magnet assembly as well as remote tunnel installation/removal considerations are factored into this design and will also be discussed.

TUP169	The Effect of Axial Stress on YBCO Coils	1139
	W. Sampson, M. Anerella, J.P. Cozzolino, R.C. Gupta, Y. Shiroyanagi BNL, Upton, Long Island, New York, USA E. Evangelou The Bronx High School of Science, Bronx, New York, USA
	Funding: This work is supported by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886. A spiral wound “pancake” coil made from YBCO coated conductor has been stressed to a pressure of 100MPa in the axial direction at 77K. In this case axial refers to the coil so that the force is applied to the edge of the conductor. The effect on the critical current was small and completely reversible. Repeatedly cycling the pressure had no measureable permanent effect on the coil. The small current change observed exhibited a slight hysteretic behaviour during the loading cycle.

TUP170	Mechanical Design of an Alternate Structure for LARP Nb3Sn Quadrupole Magnets for LHC	1142
	J. Schmalzle, M. Anerella, J.P. Cozzolino, P. Kovach, P. Wanderer BNL, Upton, Long Island, New York, USA G. Ambrosio, M.J. Lamm Fermilab, Batavia, USA S. Caspi, H. Felice, P. Ferracin, G.L. Sabbi LBNL, Berkeley, California, USA
	Funding: This work is supported by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886. An alternate structure for the 120mm Nb3Sn quadrupole magnet is presently under development for use in the upgrade for LHC at CERN. The design aims to build on existing technology developed in LARP with the LQ and HQ magnets and to further optimize the features required for operation in the accelerator. The structure includes features for maintaining mechanical alignment of the coils to achieve the required field quality. It also includes a helium containment vessel and provisions for cooling with 1.9k helium. The development effort includes the assembly of a six inch model to verify required coil load is achieved. Status of the R&D effort and an update on the magnet design, including its incorporation into the design of a complete one meter long cold mass is presented.

Paper

Title

Page

Engineering Design of HTS Quadrupole for FRIB

1124

J.P. Cozzolino, M. Anerella, A.K. Ghosh, R.C. Gupta, W. Sampson, Y. Shiroyanagi, P. Wanderer
BNL, Upton, Long Island, New York, USA
A. Zeller
FRIB, East Lansing, Michigan, USA

Funding: Supported by the U.S. Department of Energy under Contract DE-AC02-98CH10886 and under Cooperative Agreement DE-SC0000661 from DOE-SC that provides financial assistance to MSU for FRIB.
The coils of the first quadrupole in the fragment separator region of the Facility for Rare Isotope Beams (FRIB) must withstand an intense level of radiation and accommodate a very high heat load. Magnets produced with High Temperature Superconductors (HTS) are especially suitable in such an environment. The proposed design employs second generation (2G) HTS, permitting operation at ~50K. The engineering considerations this design are summarized. The goal has been to engineer a compact, readily producible magnet with a warm bore and yoke, made from radiation-resistant materials, capable of operating within the heat load limit, whose four double-layered coils will be adequately restrained under high radial Lorentz forces. Results of ANSYS finite element thermal and structural analyses of the coil clamping system are presented. Coil winding, lead routing and splicing, magnet assembly as well as remote tunnel installation/removal considerations are factored into this design and will also be discussed.

TUP169

The Effect of Axial Stress on YBCO Coils

1139

W. Sampson, M. Anerella, J.P. Cozzolino, R.C. Gupta, Y. Shiroyanagi
BNL, Upton, Long Island, New York, USA
E. Evangelou
The Bronx High School of Science, Bronx, New York, USA

Funding: This work is supported by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886.
A spiral wound “pancake” coil made from YBCO coated conductor has been stressed to a pressure of 100MPa in the axial direction at 77K. In this case axial refers to the coil so that the force is applied to the edge of the conductor. The effect on the critical current was small and completely reversible. Repeatedly cycling the pressure had no measureable permanent effect on the coil. The small current change observed exhibited a slight hysteretic behaviour during the loading cycle.

TUP170

Mechanical Design of an Alternate Structure for LARP Nb3Sn Quadrupole Magnets for LHC

1142

J. Schmalzle, M. Anerella, J.P. Cozzolino, P. Kovach, P. Wanderer
BNL, Upton, Long Island, New York, USA
G. Ambrosio, M.J. Lamm
Fermilab, Batavia, USA
S. Caspi, H. Felice, P. Ferracin, G.L. Sabbi
LBNL, Berkeley, California, USA

Funding: This work is supported by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886.
An alternate structure for the 120mm Nb3Sn quadrupole magnet is presently under development for use in the upgrade for LHC at CERN. The design aims to build on existing technology developed in LARP with the LQ and HQ magnets and to further optimize the features required for operation in the accelerator. The structure includes features for maintaining mechanical alignment of the coils to achieve the required field quality. It also includes a helium containment vessel and provisions for cooling with 1.9k helium. The development effort includes the assembly of a six inch model to verify required coil load is achieved. Status of the R&D effort and an update on the magnet design, including its incorporation into the design of a complete one meter long cold mass is presented.