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Angular Measurements of HTS Critical Current for High Field Solenoids.

DE2008926766

Publication Date	2007
Personal Author	Turrioni, D.; Thieme, C.; Barzi, E.; Lamm, M.; Zlobin, A. V.
Page Count	8
Abstract	An experiment is in the works at Fermilab to confirm that ionization cooling is an efficient way to shrink the size of a muon beam. This would pave the way for Muon Collider machines, which however require in their last stages of acceleration very high field solenoids. The use of high temperature superconducting materials (HTS) is being considered for these magnets using Helium or higher temperature refrigeration. A sample holder was designed to perform critical current (Ic) measurements of HTS conductors under externally applied magnetic fields varying from zero to 90 degree with respect to the c-axis. This was performed in an ample range of temperatures and magnetic field values. A description of the test setup and results for (Bi,Pb)2Sr2Ca2Cu3Ox (BSCCO-2223) tapes, and Second Generation HTS in the form of 348 superconductor are presented.
Keywords	Particle accelerators Solenoids High temperature Superconductors Fermilab tevatron Ionization Critical current Cooling Muons Beams Magnetic fields Helium Acceleration
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Department of Energy, Washington, DC.; American Superconductor Corp., Westborough, MA.
Supplemental Notes	Prepared in cooperation with American Superconductor Corp., Westborough, MA. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200821
Contract Number	AC02-76CH03000

Angular Measurements of HTS Critical Current for High Field Solenoids.

Angular Measurements of HTS Critical Current for High Field Solenoids.
DE2008926766

Publication Date	2007
Personal Author	Turrioni, D.; Thieme, C.; Barzi, E.; Lamm, M.; Zlobin, A. V.
Page Count	8
Abstract	An experiment is in the works at Fermilab to confirm that ionization cooling is an efficient way to shrink the size of a muon beam. This would pave the way for Muon Collider machines, which however require in their last stages of acceleration very high field solenoids. The use of high temperature superconducting materials (HTS) is being considered for these magnets using Helium or higher temperature refrigeration. A sample holder was designed to perform critical current (Ic) measurements of HTS conductors under externally applied magnetic fields varying from zero to 90 degree with respect to the c-axis. This was performed in an ample range of temperatures and magnetic field values. A description of the test setup and results for (Bi,Pb)2Sr2Ca2Cu3Ox (BSCCO-2223) tapes, and Second Generation HTS in the form of 348 superconductor are presented.
Keywords	Particle accelerators Solenoids High temperature Superconductors Fermilab tevatron Ionization Critical current Cooling Muons Beams Magnetic fields Helium Acceleration
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Department of Energy, Washington, DC.; American Superconductor Corp., Westborough, MA.
Supplemental Notes	Prepared in cooperation with American Superconductor Corp., Westborough, MA. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200821
Contract Number	AC02-76CH03000