Statistics – Applications
Scientific paper
Apr 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..apr.v4005g&link_type=abstract
American Physical Society, April Meeting, April 28 - May 1, 2001 Washington, DC Bulletin of the American Physical Society, Vol.
Statistics
Applications
Scientific paper
Herbert Friedman died on 9 September 2000 at the age of 84. He spent his entire professional career at the Naval Research Laboratory, starting as a physicist in 1940 after completing his graduate work at Johns Hopkins University. During his first ten years at NRL he was occupied with analytical studies of materials using x-rays, building on the research experience he gained as a graduate student. His principal accomplishments related to the development and application of high efficiency gas counters for x-rays and the associated high speed electronics and included the development of x-ray fluorescence as a laboratory and industrial tool. He also developed the geiger counters used by NRL in the detection of the first Soviet nuclear bomb. By 1950 he had switched fields and had begun the program of rocket observations of the sun for which he is best known. His first rocket flight, a V2 flown in 1949, one of the first applications of photon counting to astronomy, established the relationship between solar x-rays and ultraviolet radiation and the ionization structure of the upper atmosphere. By the late 1950s Friedman had switched fields again, to the study of UV and x-rays from the night sky. In 1964 he performed a landmark rocket experiment, observing x-ray emission from the Crab Nebula as it was being occulted by the Moon. In 1960 Friedman was elected to the National Academy of Sciences and became increasingly involved in community affairs, including membership on the President’s Science Advisory Committee, the General Advisory Committee to the Atomic Energy Commission, the Space Science Board of the National Academy of Sciences and the Governing Board of the National Academy of Sciences.
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