High energy proton irradiation induced pinning centers in Bi-2212 and Bi-2223 superconductors

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Bi-2212 single crystals and Bi-2223/Ag-sheathed tapes were irradiated with high energy protons. TEM images reveal the production of randomly oriented (splayed) columnar defects with an amorphous core of {approximately}10 nm diameter caused by the fissioning of Bi nuclei. The critical current density J{sub c} and irreversibility line both substantially increased with the proton dose for both crystals and tapes, especially for the magnetic field parallel to the c axis. An irradiated tape had a J{sub c} value {approximately}100 times greater than that of an unirradiated one at 1 T and 75 K.

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6 p.

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Willis, J.O.; Safar, H. & Cho, J.H. December 1, 1995.

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Description

Bi-2212 single crystals and Bi-2223/Ag-sheathed tapes were irradiated with high energy protons. TEM images reveal the production of randomly oriented (splayed) columnar defects with an amorphous core of {approximately}10 nm diameter caused by the fissioning of Bi nuclei. The critical current density J{sub c} and irreversibility line both substantially increased with the proton dose for both crystals and tapes, especially for the magnetic field parallel to the c axis. An irradiated tape had a J{sub c} value {approximately}100 times greater than that of an unirradiated one at 1 T and 75 K.

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6 p.

Notes

OSTI as DE96002581

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  • 8. international symposium on superconductivity, Hamamatsu (Japan), 30 Oct - 2 Nov 1995

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  • Other: DE96002581
  • Report No.: LA-UR--95-3747
  • Report No.: CONF-951078--1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 137303
  • Archival Resource Key: ark:/67531/metadc627814

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  • December 1, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 29, 2016, 3:22 p.m.

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Willis, J.O.; Safar, H. & Cho, J.H. High energy proton irradiation induced pinning centers in Bi-2212 and Bi-2223 superconductors, article, December 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc627814/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.