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The battle against New World screwworm continues
Last year, the state of Texas, in partnership with several arms of the federal government, mounted a major response to the New World screwworm (NWS)—a parasitic fly spreading through Mexico.
This year, as the NWS has continued its northward advance toward the U.S. border, efforts to ramp up eradication efforts have continued and intensified on multiple fronts.
John P. Barton
Nuclear Technology | Volume 15 | Number 1 | July 1972 | Pages 56-67
Technical Paper | Radioisotope | doi.org/10.13182/NT72-A31162
Articles are hosted by Taylor and Francis Online.
Studies have been performed to evaluate the isotopic neutron source 252Cf for neutron radioraphy. By special methods of fine tuning it is possible to obtain neutron radiographs that can be compared with those obtained from a nuclear reactor facility using very low collimation (gadolinium foil converter, medium resolution film, 1:25 collimator ratio). The 252Cf exposure necessary for this quality neutron radiograph is 1 mg for 100 h (or 10 mg for 10 h, etc.). A neutron source, 244Cm-Be, expected to become available as a by-product of the nuclear power program, provides neutron radiographs similar in quality to those from 252Cf.