News of the WeekHigh-Energy Physics

Shock Wave May Have Knocked Out Japanese Neutrino Detector

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Science  23 Nov 2001:
Vol. 294, Issue 5547, pp. 1630-1631
DOI: 10.1126/science.294.5547.1630

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TOKYO-- The tank was three-quarters full on the morning of 12 November when the technicians in the control room of the $100 million Super-Kamiokande neutrino observatory heard a roar that lasted half a minute or more. When it was over, all the finely tuned light-detecting sensors below the water had imploded, and the observatory lay crippled. It may be 2007 before the facility is back at full capacity, and repairs could cost $15 million to $25 million, but scientists and government officials have vowed to resume some experiments within a year.