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The approximate overall efficiency of this process has been determined, and we compare this with expectations. We have also been able to detect evaporation induced by a flux of γ’s from a 137Cs source."},{"label":"DOI","value":"10.1103/PhysRevLett.68.2429"},{"label":"Volume","value":"68"},{"label":"Issue","value":"16"},{"label":"Publication Date","value":"D:20 M:04 Y:1992"},{"label":"Publication Information","value":"Copyright 1992 The American Physical Society. The original published version of this article may be found at http://dx.doi.org/10.1103/PhysRevLett.68.2429."}],"description":"Particle Detection by Evaporation from Superfluid Helium","sequences":[{"@type":"sc:Sequence","canvases":[{"@id":"https://iiif.quartexcollections.com/portland/iiif/27433f45-d3f9-4995-8cef-b6f91d645110/canvas/_1","@type":"sc:Canvas","label":"Particle Detection by Evaporation from Superfluid 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