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Science 5 February 1999:
Vol. 283. no. 5403, pp. 769 - 770
DOI: 10.1126/science.283.5403.769a
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News of the Week

PHYSICS:
First Light for a Gamma Ray Flashbulb

Ivan Amato

In the 25 January Physical Review Letters, a team of a dozen researchers from five different countries has moved a step closer toward creating a gamma ray laser. The team showed that x-rays can trigger a form of hafnium-178 extracted from accelerator waste to release energy stored in its nuclei as a blast of gamma photons.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)