Difference between revisions of "Interaction of Superconducting YBa2Cu3-xZnxO7-y with MeV Radiation"
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<span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">When the high Tc superconductor Y-Ba-Cu-O is cooled with liquid nitrogen, the conduction holes form a </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">macroscopic collective or entangled state. While collective effects have been observed with radiation energies up to 5 </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">eV, no high-sensitivity experiments have previously been carried out to search for comparable effects with MeV </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">radiation. Here an experiment using a pair of scintillation counters arranged to search for changes in the natural </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">background of high energy radiation adjacent to a warm and cold Y-Ba-Cu-O superconductor is described. The </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">experiment showed a shift toward higher pulse heights when the SC was cooled, with a 4 standard deviation excess of </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">9.12</span>''<span text-decoration:="" font-size:="" color:="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" timesnewromanps-italicmt;="" timesnewromanps-italicmt?,?serif?;="" style="FONT-FAMILY: ">?</span>''<span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">2.28 events/ksec over the range of 0 to 18 MeV. The net difference spectrum shows a 5.5 standard deviation </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="LINE-HEIGHT: 115%; FONT-FAMILY: ">excess signal for the range of 3 to 6 MeV.</span> | <span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">When the high Tc superconductor Y-Ba-Cu-O is cooled with liquid nitrogen, the conduction holes form a </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">macroscopic collective or entangled state. While collective effects have been observed with radiation energies up to 5 </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">eV, no high-sensitivity experiments have previously been carried out to search for comparable effects with MeV </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">radiation. Here an experiment using a pair of scintillation counters arranged to search for changes in the natural </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">background of high energy radiation adjacent to a warm and cold Y-Ba-Cu-O superconductor is described. The </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">experiment showed a shift toward higher pulse heights when the SC was cooled, with a 4 standard deviation excess of </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">9.12</span>''<span text-decoration:="" font-size:="" color:="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" timesnewromanps-italicmt;="" timesnewromanps-italicmt?,?serif?;="" style="FONT-FAMILY: ">?</span>''<span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="FONT-FAMILY: ">2.28 events/ksec over the range of 0 to 18 MeV. The net difference spectrum shows a 5.5 standard deviation </span><span text-decoration:="" font-size:="" color:="" timesnewromanpsmt;="" timesnewromanpsmt?,?serif?;="" black;="" 9pt;="" none;="" mso-bidi-font-family:="" mso-themecolor:="" text1;="" text-underline:="" none?="" style="LINE-HEIGHT: 115%; FONT-FAMILY: ">excess signal for the range of 3 to 6 MeV.</span> | ||
| − | [[Category:Scientific Paper]] | + | [[Category:Scientific Paper|interaction superconducting yba cu -xznxo -y mev radiation]] |
[[Category:New Energy]] | [[Category:New Energy]] | ||
Revision as of 10:34, 1 January 2017
| Scientific Paper | |
|---|---|
| Title | Interaction of Superconducting YBa2Cu3-xZnxO7-y with MeV Radiation |
| Author(s) | Glen A Robertson, Raymond A Lewis |
| Keywords | Superconductivity, Radiation |
| Published | 2009 |
| Journal | None |
| Volume | AIP 1103 |
| No. of pages | 6 |
| Pages | 260-265 |
Abstract
When the high Tc superconductor Y-Ba-Cu-O is cooled with liquid nitrogen, the conduction holes form a macroscopic collective or entangled state. While collective effects have been observed with radiation energies up to 5 eV, no high-sensitivity experiments have previously been carried out to search for comparable effects with MeV radiation. Here an experiment using a pair of scintillation counters arranged to search for changes in the natural background of high energy radiation adjacent to a warm and cold Y-Ba-Cu-O superconductor is described. The experiment showed a shift toward higher pulse heights when the SC was cooled, with a 4 standard deviation excess of 9.12?2.28 events/ksec over the range of 0 to 18 MeV. The net difference spectrum shows a 5.5 standard deviation excess signal for the range of 3 to 6 MeV.
