Thermal Stability of Ag/Bi-2212 Tape at Cryocooled Condition
Thermal runaway properties of Ag/Bi-2212 tape cooled by a cryocooler have been studied experimentally under the condition of magnetic fields up to 15T at 4K. To investigate the stability of the tape, Joule heating and a sample temperature were measured as a function of time at a fixed operating curr...
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| Veröffentlicht in: | TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 2001/02/25, Vol.36(2), pp.60-67 |
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| container_end_page | 67 |
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| container_issue | 2 |
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| container_title | TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) |
| container_volume | 36 |
| creator | SETO, Toshiyuki MURASE, Satoru SHIMAMOTO, Susumu AWAJI, Satoshi OKADA, Michiya WATANABE, Kazuo |
| description | Thermal runaway properties of Ag/Bi-2212 tape cooled by a cryocooler have been studied experimentally under the condition of magnetic fields up to 15T at 4K. To investigate the stability of the tape, Joule heating and a sample temperature were measured as a function of time at a fixed operating current. As a result, if cooling capacities are higher than Joule heating, it is found that thermal runaway current, Itr, is higher than critical current, Ic, which is defined by 1μV/cm. Furthermore, MRE (Minimum Runaway Energy) was measured as a function of operating current ratio, Iop/Itr, and the magnetic fields. The MRE decreased with increasing magnetic field in the same operating current ratio. |
| doi_str_mv | 10.2221/jcsj.36.60 |
| format | Article |
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To investigate the stability of the tape, Joule heating and a sample temperature were measured as a function of time at a fixed operating current. As a result, if cooling capacities are higher than Joule heating, it is found that thermal runaway current, Itr, is higher than critical current, Ic, which is defined by 1μV/cm. Furthermore, MRE (Minimum Runaway Energy) was measured as a function of operating current ratio, Iop/Itr, and the magnetic fields. 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| fulltext | fulltext |
| identifier | ISSN: 0389-2441 |
| ispartof | TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 2001/02/25, Vol.36(2), pp.60-67 |
| issn | 0389-2441 1880-0408 |
| language | eng |
| recordid | cdi_crossref_primary_10_2221_jcsj_36_60 |
| source | EZB Electronic Journals Library |
| subjects | Bi-2212 cryocooler minimum runaway energy thermal runaway |
| title | Thermal Stability of Ag/Bi-2212 Tape at Cryocooled Condition |
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