Word: positronic
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...even create negative protons, which would be really sensational. Ordinary protons are positively charged. Combined with one or more negative electrons, they form the familiar atoms of ordinary matter. But scientists have already created positive electrons (positrons). This suggests that it may be possible to create negative protons (not yet named nega-tons). Combined with positrons, these should form "reversed matter." An atom of "anti-hydrogen," for instance, would have a negative proton as its nucleus, with a positron instead of an electron revolving around...
Addressing a group of science writers visiting Boston under the sponsorship of the American Cancer Society, Sweet and Brownell disclosed that surgeons at Massachusetts General Hospital are using a "positron," an atomic particle emitted from material made radio-active in the M.I.T. cyclotron, to detect and locate brain tumors...
Sweet and Dr. Manucher Javid, Research Fellow in Surgery, explained that the "positron" technique is one of diagnosis while the use of boron may possibly be found of advantage for therapy following surgical operations in which brain tumors have been partially or totally removed...
...Dirac is the genius who sensed the existence of the positron (positive electron) by figuring how a "hole" would behave if one should appear in a field of (negative) electrons. The hole, he decided, would act like a positive electron. Though no such particle had ever been found, colleagues began to look. Sure enough, they found the holes, as tangible as anything in basic physics, and named them "positrons...
...Carl David Anderson (1936), Caltech professor of physics, student of atomic structure and various atomic fragments, discoverer of the positron...