HTS applications and fusion reactors, back in 1989, when U.S. researchers on the HTS in the commercial application of tokamak performance (mainly stability) and cost estimates. In their research in which they pointed out that work in high-temperature superconductors liquid nitrogen temperature superconductors can withstand a higher temperature than the heating rate, without sacrificing stability, which will allow the cable design reduces the number of stabilization measures to reduce the large fusion magnets cost. Into years, the U.S. MIT Plasma Science and Fusion Center is carrying out high-temperature superconducting tokamak design work. By the end of 1999, L.Bromberg with M.Tekula with others on a long-running Tokamak temperature superconductor magnet system to optimize the design, they also studied the fusion environment on the performance and life of HTS constraints imposed by the United States which task for the tokamak magnet system design and construction provides a new way. Now research is not to see whether the high-temperature superconductors for tokamak fusion reactor, but rather to find a best way to long-term operation. High-temperature superconductors in the fusion reactor applications include high-temperature superconducting current leads, ring field (TF) magnet system and poloidal field (PF) magnet system applications.
In modern mobile communication systems, the improved communication station receiving system sensitivity is very important. Because the transmission band 2000mhz feeder loss and the frequency band higher than 900mhz. Also, the communication station receiving system must be very selective so as to ensure the mobile communication system used by the operator frequency band, the arrangement as close to each other without causing interference. For this reason, many companies and research institutions superconductivity are actively studying the use of mobile communication base station receiver front-end high-temperature superconductivity. A typical HTS HTS receiver front end is made thin film filter, low-temperature low-noise amplifiers and high reliable refrigerant components.
Low-noise amplifier to work at low temperatures, it is an improvement of the indicators, the most prominent advantage is its noise can be greatly reduced.