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James A. Van Allen journal, October 1955-March 1958
Page 146
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"Eccofoam" foam - in place plastic foam Emerson and Cuming, Inc. 859 Washington Street Canton, Massachusetts eccofoam FP ) G. Ludwig catalyst 12-2 ) notes of 12/6/1956 catalyst 12-6 ) ----------------------------------------------- 12/12/1956 Carl McIlwain is finding crystals of CdS (taken from Clairex CdS photocells) to be quite promising [detectors?] for Po-alpha particles.. [sketch/picture/schematic] electronic circuit to detect alpha particles, 300 v
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"Eccofoam" foam - in place plastic foam Emerson and Cuming, Inc. 859 Washington Street Canton, Massachusetts eccofoam FP ) G. Ludwig catalyst 12-2 ) notes of 12/6/1956 catalyst 12-6 ) ----------------------------------------------- 12/12/1956 Carl McIlwain is finding crystals of CdS (taken from Clairex CdS photocells) to be quite promising [detectors?] for Po-alpha particles.. [sketch/picture/schematic] electronic circuit to detect alpha particles, 300 v
Van Allen Papers
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