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Atlanta, GA|Atlanta Marriott Marquis
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Remembering ANS member Gil Brown
Brown
The nuclear community is mourning the loss of Gilbert Brown, who passed away on July 11 at the age of 77 following a battle with cancer.
Brown, an American Nuclear Society Fellow and an ANS member for nearly 50 years, joined the faculty at Lowell Technological Institute—now the University of Massachusetts–Lowell—in 1973 and remained there for the rest of his career. He eventually became director of the UMass Lowell nuclear engineering program. After his retirement, he remained an emeritus professor at the university.
Sukesh Aghara, chair of the Nuclear Engineering Department Heads Organization, noted in an email to NEDHO members and others that “Gil was a relentless advocate for nuclear energy and a deeply respected member of our professional community. He was also a kind and generous friend—and one of the reasons I ended up at UMass Lowell. He served the university with great dedication. . . . Within NEDHO, Gil was a steady presence and served for many years as our treasurer. His contributions to nuclear engineering education and to this community will be dearly missed.”
Marcus N. Myers, Kathy A. Graff, J. Calvin Giddings
Nuclear Technology | Volume 51 | Number 2 | December 1980 | Pages 147-155
Technical Paper | Argonne National Laboratory Specialists’ Workshop on Basic Research Needs for Nuclear Waste Management / Radioactive Waste | doi.org/10.13182/NT80-A32594
Articles are hosted by Taylor and Francis Online.
Field-flow fractionation (FFF) is a versatile analytical separation technique that has proven to be applicable to a wide range of polymers, colloids,and fine oarticles over the effective molecular weight range 103 to 1016, corresponding to diameters of 0.001 to 30 µm. Several subtechniques of FFF have been developed for which there are precise theoretical relationships of retention to particle parameters. Fractionation takes place in a thin flow channel by the interaction of a lateral field (gravitational or centrifugal in the case of sedimentation FFF, cross flow in flow FFF, electrical in electrical FFF, and temperature differential in thermal FFF) with the flow profile. Steric FFF, a limiting form of FFF, is applicable to the largest particles, from 1 up to 30 μm or more in diameter, and can also be used in a preparative mode. Altogether FFF has the potential of separating and characterizing radioactive species and the diverse materials with which they are associated in the environment over a size range where analysis by conventional techniques is difficult or impossible.
