Jun, 2009
The BESS-Polar Ultra-Thin Superconducting Solenoid Magnet and Its Operational Characteristics During Long-Duration Scientific Ballooning Over Antarctica
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
- Volume
- 19
- Number
- 3
- First page
- 1315
- Last page
- 1319
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1109/TASC.2009.2017946
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
An ultra-thin superconducting solenoid has been developed for a cosmic-ray spectrometer ballooning over Antarctica, which is named BESS-Polar II. The coil with a diameter of 0.9 m, a length of 1.4 m and a thickness of 3.5 mm, is wound with high-strength aluminum stabilized superconductor and provides 0.8 T in the spectrometer. Based on the experience at the BESS-Polar-I solenoid flight for nine days in 2004, the BESS-Polar-II solenoid, which was cryogenically improved, realized a persistent current mode operation for 25 days in the second flight campaign in December 2007 though January 2008. It has contributed to accumulate the cosmic-ray observation data with 4700 million events and 16 terabyte in a hard disk unit. This report will describe the second solenoid performance during the flight.
- Link information
- ID information
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- DOI : 10.1109/TASC.2009.2017946
- ISSN : 1051-8223
- eISSN : 1558-2515
- Web of Science ID : WOS:000268282100055