A High Tc Superconducting Current Lead Assembly for the XDS Helium Cryostat

Tuttle, James; Hait, T.; Boyle, R. F.; Muller, H.; Hodge, J. D.; Breon, Susan

doi:10.1007/978-1-4757-9047-4_121

Cited by 9 publications

(4 citation statements)

References 1 publication

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“…The XRS instrument on Astro-E had similar requirements, and used bulk YBa 2 Cu 3 O 7 (YBCO) filaments bonded to a G-10 tube [11]. Unfortunately, such filaments were extremely fragile, and are anyway no longer available.…”

Section: Background and Driving Requirementsmentioning

confidence: 99%

The Astro-H high temperature superconductor lead assemblies

et al. 2014

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Section: Background and Driving Requirementsmentioning

confidence: 99%

The Astro-H high temperature superconductor lead assemblies

et al. 2014

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“…When the distance between two coils is quite larger than the coil radius, the magnetic moment model is used, by which the force can be simply expressed as: (1) where is the distance between two coils, and are magnetic moment of the dipole defined as: (2) is the number of the turns; is the current passing through; is the average diameter of the two coils;…”

Section: Acceleration Achieved By Magnetic Drivingmentioning

confidence: 99%

“…HTS electronics, mainly working at gigahertz have long been considered since 1990s [1]. A YBCO current lead linking a 17 K environment to a 4 K stage worked well in the Astro-E2 satellite [2]. At the beginning of the new century, an international team has designed and fabricated a conduction-cooled HTS coil for use in the Variable Specific Impulse Magneto Plasma Rocket, providing the hope of large quantitative use of HTS materials in space [3].…”

Section: Introductionmentioning

confidence: 99%

Design of HTS Coil for Magnetic Driving Spacecraft

Zou

et al. 2010

IEEE Trans. Appl. Supercond.

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An experiment testbed aiming to demonstrate the principle of the magnetic driving (MD) spacecrafts was successfully constructed in 2008. Orthogonal Bi2223 coils provide magnetic fields to attract, repel and rotate two 50 kg vehicles in an air pressured platform. Technique details of the testbed in association with the coil design and fabrication are briefly introduced. More details focused on two conceptual designs, which support the use of MD in the future space missions. First, the acceleration between two vehicles, which is a main parameter to evaluate the efficiency of MD is calculated. An optimal coil radius is obtained for such structure that Bi2223 coils are cooled by a passive radiative cooler whose weight is approximately proportional to the coil radius. Second, an active-passive shielding system (APSS) is proposed to protect the onboard instruments which are sensitive to the magnetic field. The basic unit of the APSS is closed HTS coils, which can resist flux variation. The shielding ability of the APSS is discussed by using both theoretical and Finite Element Analysis.

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“…HTS electronics applications, mainly working at the gigahertz range, have long been considered since the 1990s [1]. The YBCO current lead linking a 17 K environment to a 4 K stage was believed to be a bright spot and proved to work well in the Astro-E2 satellite, although the satellite itself lost 19 days after launching in 2005 [2]. 3 Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Design and construction of the magnetic driving vehicle in a two-dimensional testbed

Guo

Lin

et al. 2009

Supercond. Sci. Technol.

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A two-dimensional testbed that aims to demonstrate the feasibility of magnetically driving several spacecrafts was successfully constructed. The testbed has two vehicles, each of which consists of two Bi2223 coils placed in an orthogonal way. The magnetic force between the two vehicles with a 1 m separation distance is less than 1 N, which is big enough to attract, repel and rotate two 50 kg vehicles in a 1.2 m × 2 m platform. The hardware for the testbed, which includes the coils, a cryostat and an air pressured system, is introduced. A parallel power supply circuit was specifically designed for the high temperature superconductor (HTS) coil operating in space, for the purpose of reducing the Joule heat and providing redundancy. Two key questions relating to the HTS coil used in the magnetic driving are discussed. First, the magnetic force between the two coils, a preliminary index directing the coil parameters, is concisely expressed as an arithmetical equation. The accuracy of the equation is checked by a more accurate model based on the Biot–Savart law and a FEA calculation. Second, the interaction between the orthogonal coils with respect to the Ic(B) characteristic of the Bi2223 tape is discussed. A minimum safe distance between the two coils is defined and numerically calculated. Two coils whose separation distance is larger than the minimum safe distance can be regarded as having no magnetic interaction.

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A High Tc Superconducting Current Lead Assembly for the XDS Helium Cryostat

Cited by 9 publications

References 1 publication

The Astro-H high temperature superconductor lead assemblies

The Astro-H high temperature superconductor lead assemblies

Design of HTS Coil for Magnetic Driving Spacecraft

Design and construction of the magnetic driving vehicle in a two-dimensional testbed

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