| 词条 | Helen Vaughn Michel |
| 释义 |
| name = Helen Vaughn Michel | image = | caption = | birth_date = 1932 | nationality = American | field = Nuclear Chemistry | work_institution = University of California, Berkeley | alma_mater = University of California, Berkeley, Indiana University | doctoral_advisor = }}Helen Vaughn Michel (born 1932) is an American chemist best known for her efforts in fields including analytical chemistry and archaeological science, and specific processes such as neutron activation analysis and radiocarbon dating. Her work with Frank Asaro at the Lawrence Berkeley National Laboratory at the University of California (Berkeley) is particularly noteworthy as it includes the dating of Drake's Plate of Brass as well as the Alvarez hypothesis, the hypothesis that posits the Cretaceous–Paleogene extinction event.[1] Michel retired from the Lawrence Berkeley National Laboratory in 1990.[1] References1. ^1 {{cite book|last=Wayne|first=Tiffany|title=American Women of Science Since 1900 / Vol. 1, Essays, A-H.|year=2011|publisher=ABC-CLIO|isbn=1598841580|pages=688–689}} {{Authority control}}{{DEFAULTSORT:Michel, Helen Vaughn}}{{US-chemist-stub}} 7 : Living people|1932 births|21st-century American chemists|University of California, Berkeley alumni|University of California, Berkeley faculty|Lawrence Berkeley National Laboratory people|Women chemists |
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