Demagnetization of a Bi-2223 High-temperature Superconducting Coil in RT-1 through Spontaneous Temperature Rise

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Magnetic Shield Using a Bi-2223 High-Temperature Super- conductor

Katsumi Ohata* Junichi Sato* ABSTRACT: Magnetic shielding for strong magnets using a high-temperature superconductor that can be operated at liquid nitrogen temperature has been studied. Long and large-cross-section (9 mm wide and 0.5 mm thick) 54-filament Bi-2223/Ag tape was developed. Double pancake coils were wound using the tapes having sufficient bending strain tolerance for the react-and-...

متن کامل

A pr 1 99 4 Temperature dependence of the superconducting gap anisotropy in Bi

We present the first detailed data of the momentum-resolved, temperature dependence of the superconducting gap of Bi 2 Sr 2 Ca 1 Cu 2 O 8+x , complemented by similar data on the intensity of the photoemission superconducting conden-sate spectral area. The gap anisotropy between the Γ− ¯ M and Γ−X directions increases markedly with increasing temperature, contrary to what happens for conventiona...

متن کامل

A gradient coil design for a high-temperature superconducting bulk magnet using the finite-difference method

The screening current induced in a bulk superconductor presents a critical problem for gradient coil design because it gives rise to undesirable effects on the gradient field: namely, a decrease in the efficiency and a distortion of the field. In this paper, a new coil design method for the bulk magnet is proposed using the finite-difference method (FDM) and the target-field method. The calcula...

متن کامل

Electromagnetic-Induced Quench of an Inner-Shim Coil for a REBCO High-Temperature Superconducting NMR Magnet

A RE(rare earth)Ba2Cu3Ox (REBCO) high-temperature superconducting (HTS) coil is a promising candidate to achieve a nuclear magnetic resonance (NMR) magnet operated at a magnetic field >23.5 Tesla (T), i.e. 1 H NMR frequency of 1 GHz. We developed and tested a 400 MHz (9.39 T) NMR magnet using an REBCO inner coil. The system included a low-temperature superconducting (LTS) shim coil inside the R...

متن کامل

Photoinduced Changes in High Temperature Superconducting Films

Photoexcitation experiments performed in oxygen deficient but metallic YBa,Cu,O, c-axis oriented films revealed that the persistent photoinduced enhancement of conductivity and superconductivity are not restricted to the insulating side of the metal-insulator transition. A clear increase of the critical temperature T,, which is accompanied by a decrease of the resistivity in the normal state pa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: TEION KOGAKU (Journal of the Cryogenic Society of Japan)

سال: 2010

ISSN: 0389-2441,1880-0408

DOI: 10.2221/jcsj.45.107