@article{da0a8c95efe747a18fcb4f081d57fa1a,
title = "The BESS-polar ultra-thin superconducting solenoid magnet and its operational characteristics during long-duration scientific ballooning over antarctica",
abstract = "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.",
keywords = "Aluminum stabilized superconductor, BESS, Balloon-borne experiment, Detector magnet, Thin solenoid",
author = "Yasuhiro Makida and Akira Yamamoto and Koji Yoshimura and Tanaka, {Ken Ichi} and Suzuki, {Ju N.Ichi} and Shinya Matsuda and Masata Hasegawa and Atsushi Horikoshi and Ryoko Shinoda and Kenichi Sakai and Shoichi Mizumaki and Reiko Orito and Yousuke Matsukawa and Akira Kusumoto and Mitchell, {John W.} and Streitmatter, {Robert E.} and Thomas Hams and Makoto Sasaki and Neeharika Thakur",
note = "Funding Information: Manuscript received August 19, 2008. First published June 05, 2009; current version published July 15, 2009. This work was supported by the Japan MEXT Grant-in-Aid and international collaboration with NASA/GDFC in the U.S. Y. Makida, A. Yamamoto, K. Yoshimura, K. Tanaka, J. Suzuki, S. Mat-suda, M. Hasegawa, and A. Horikoshi are with the High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan (e-mail: yasuhiro.makida@kek.jp). R. Shinoda and K. Sakai are with the University of Tokyo, Tokyo 113-0033, Japan. S. Mizumaki is with Toshiba, Yokohama, Kanagawa 230-0045, Japan. R. Orito, Y. Matsukawa, and A. Kusumoto were with Kobe University, Kobe, Hyogo 657-8501, Japan. J. W. Mitchell, R. E. Streitmatter, T. Hams, and M. Sasaki are with the National Aeronautics and Space Administration, Goddard Space Flight Center (NASA/GSFC), Greenbelt, MD 20771 USA. N. Thakur is with the University of Denver, Denver, CO 80208 USA. Digital Object Identifier 10.1109/TASC.2009.2017946",
year = "2009",
month = jun,
doi = "10.1109/TASC.2009.2017946",
language = "English",
volume = "19",
pages = "1315--1319",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",
}