Word: gamma
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...most unlikely to get smallpox. But when smallpox erupts where many people have never been vaccinated, or were vaccinated too long ago, doctors face a dilemma. A crash program of vaccination and revaccination may help, but nearly always there are victims already infected for whom this is too late. Gamma globulin has reduced the severity of many cases, but the stuff is scarce, costly, and seldom available where it is needed...
...lovely day in 1961, and in a springtime mood the students at Pennsylvania's little Allegheny College waited for their distinguished guest speaker, U.S. Supreme Court Justice William Orville Douglas. A slender, brown-haired Kappa Kappa Gamma named Joan Carol Martin was especially anxious. After all, Joan was a political science major, an honor student who was deeply interested in juridical philosophy-particularly as expounded by Justice Douglas. Introduced to Douglas by an Allegheny professor, Joan escorted him about the campus. She was duly impressed, and charmed...
...brief, enormously powerful burst of soft X rays, rather like those that are used to treat skin diseases. Those soft X rays cause a soft glow when they hit the atmosphere, but they are dissipated long before they reach the earth. There are also small amounts of gamma rays. Like the X rays, these are electromagnetic radiation that travel with the speed of light (186,000 miles per sec.). Following behind at less than one-tenth the speed of light come neutrons from the nuclear reaction. Most of the rest of the energy released goes into the vaporized debris...
...largest product of the explosion. The Vela-Hotel instrument package is expected to detect soft X rays from a one megaton explosion 200 million miles away from the earth and distinguish them from X rays from solar flares and other natural sources. Some instruments are also sensitive to gamma rays and neutrons...
...space test by means of a large amount of lead dust dispersed in space between the test and the earth, but this maneuver would be extremely expensive and far from dependable. Tests done behind the moon would not be dependably secret either; they would be revealed by delayed gamma rays from radioactive debris spreading from behind the moon's small shelter. A test on the far side of the sun might possibly escape notice for a while, but its cost, the time it would take to get in place, and its undependability would make it hardly worthwhile...