Word: walsworth
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Building on a theory by Soviet physicist Andrei Sakharov, Walsworth, physicist Eduardo R. Oteiza and co-workers have been working on detecting an electric dipole of xenon to gain insight into the laws governing the formation of the universe...
...recent Smithsonian Institution Research Reports, Walsworth explained how difficult it was to detect the dipole, saying that if one were to blow up an the size of the Earth, the xenon dipole wouldamount to less than the width of a human hair...
...further their research into the origin ofmatter, Walsworth, Oteiza and Timothy E. Chupp ofthe University of Michigan developed aninexpensive technique for producing the magnetizedxenon gas needed to measure the dipole. Only aftertalking to scientists doing similar research atPrinceton and SUNY Stonybrook did Walsworthrealize the advantages his magnetizer couldprovide...
Xenon, an inert gas already used in hospitalsas an anesthetic, can be pre-magnetized with alaser using Walsworth's method and inhaled by thepatient. The xenon then diffuses throughout thebody almost instantly, allowing a properly tunedMRI to detect the image...
Because the gas is premagnetized, MRI machinesdetecting xenon only require a weak magnetic fieldand can probably be made much smaller thanconventional imagers. Walsworth says he hopes thenew MRI's compact size will allow it to be broughtaboard the space shuttle to provide data on howzero gravity affects the body...