Word: radiochemist
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With the aid of radiochemist Pankaj Sharma of the University of Rochester, he compared the amount of the isotope in the midden urine with contemporary values, and concluded that cosmic-ray bombardment was 41% more intense 21,000 years ago than it is now. This suggests that the earth's magnetic field, which acts as a partial barrier to cosmic rays, was then considerably weaker. One implication: terrestrial life had been -- and could someday again be -- exposed to higher doses of dangerous radiation from space...
Neutron activation analysis has yet to be ruled on officially by a high U.S. court, but its backers are confident; the technique claims extreme accuracy-comparable to the best chemical techniques-and its sensitivity offers crime detection a powerful new weapon. Says Dr. Vincent Guinn, a radiochemist who is director of a joint project of the Atomic Energy Commission, General Dynamics Corp. and the Los Angeles police department: "Neutron activation analysis is no cure-all for crime, nor do I think it will replace regular chemical analysis procedures...
TIME deplores atomic "spine-chilling" but manages to give it a fling . . . Despite your statement that "it may be years before the food products of Bikini are safe" [TIME, Oct. 3], dozens of us have partaken daily of Bikini's coconuts and papaya, with full clearance from both radiochemist and radio-medical officer. For six weeks we swam daily in the "poisoned lagoon" and walked hip-deep by the hour in the "radioactive water." Poppycock ! Over two years ago the scientists reported that a man living for months on twice-A-bombed Bikini would be exposed to radioactivity roughly...
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