AC LOSSES OF SUPERCONDUCTING ACCELERATOR MAGNETS

2003 ◽  
Vol 17 (05n06) ◽  
pp. 175-198
Author(s):  
V. KOVACHEV
Keyword(s):  
Numerical Analysis ◽  
Critical Current ◽  
Superconducting Magnets ◽  
Curing Temperature ◽  
Ac Losses ◽  
Ramp Rate ◽  
Accelerator Magnets ◽  
Source Of Error ◽  
Superconducting Accelerator ◽  
Current Behavior

We are focusing on the uncertainties of analytical and numerical analysis of AC losses in superconducting accelerator magnets working at a relatively high ramp rate. The loss experimental techniques are discussed as well as the source of error in the measurements. The correlation between the interstrand resistance of Rutherford cables and quench current behavior of superconducting magnets is addressed. The control of the critical current of full Rutherford cables by measuring the strands extracted from such cables is illustrated. The importance of cables curing temperature on microhardness and RRR of Cu-matrix of multifilamentary NbTi is pointed out.

Influence of curing on AC losses of cables for superconducting accelerator magnets

1994 ◽  
Vol 30 (4) ◽  
pp. 2515-2518 ◽  
Author(s):  
A. Kimura ◽  
N. Kimura ◽  
Y. Makida ◽  
A. Terashima ◽  
T. Shintomi ◽  
...  
Keyword(s):  
Ac Losses ◽  
Accelerator Magnets ◽  
Superconducting Accelerator

scholarly journals Development of a rotating-coil scanner for superconducting accelerator magnets

2020 ◽  
Vol 9 (1) ◽  
pp. 99-107 ◽  
Author(s):  
Piotr Rogacki ◽  
Lucio Fiscarelli ◽  
Stephan Russenschuck ◽  
Kay Hameyer
Keyword(s):  
Printed Circuit Board ◽  
Superconducting Magnets ◽  
Hadron Collider ◽  
Field Measurements ◽  
Circuit Board ◽  
Scanning System ◽  
Printed Circuit ◽  
Accelerator Magnets ◽  
Field Errors ◽  
Superconducting Accelerator

Abstract. The High-Luminosity upgrade project for the Large Hadron Collider (HL-LHC) at CERN (Conseil Européen pour la Recherche Nucléaire) will require new superconducting magnets for the insertion regions. Among these magnets, the new triplet quadrupoles, based on Nb3Sn technology, require magnetic-field measurements of a high precision in the field angle and multipole field errors. In this paper, we present a scanning system based on a rotating-coil magnetometer and its transport system, including the design of the mechanical structure and the induction coils based on printed-circuit-board (PCB) technology. The system and its components are cross-calibrated with other field transducers, such as stretched-wire systems, and their measurement precision is established in a measurement campaign of 2 m long reference quadrupoles.

scholarly journals Influence of the carbon substitution on the critical current density and AC losses in MgB2 single crystals

2010 ◽  
Vol 78 (3) ◽  
pp. 359-365 ◽  
Author(s):  
M. Ciszek ◽  
K. Rogacki ◽  
K. Oganisian ◽  
N. D. Zhigadlo ◽  
J. Karpinski
Keyword(s):  
Critical Current Density ◽  
Single Crystals ◽  
Critical Current ◽  
Current Density ◽  
Ac Losses ◽  
Carbon Substitution

Numerical Analysis of AC Losses of HTS Coils with Different Structural Parameters

2021 ◽  
Author(s):  
Qixun Zhou ◽  
Qian Guo ◽  
Wentao Gao ◽  
Tao Su ◽  
Tiantian Chen ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Structural Parameters ◽  
Ac Losses

Effect of ferromagnetic rings on critical current and AC losses of a coil made from Bi-2223/Ag tape

2002 ◽  
Vol 12 (1) ◽  
pp. 1632-1634 ◽  
Author(s):  
A. Polak ◽  
P. Usak ◽  
L. Jansak ◽  
J. Kvitkovic ◽  
Z. Timoransky ◽  
...  
Keyword(s):  
Critical Current ◽  
Ac Losses
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