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In beta decay, an atom emitted electrons with a continuous range of energies up to a certain maximum value. This phenomenon had been known since 1914, but it was not until 1927 that
Charles Drummond Ellis, a British experimental physicist, and his colleague William Alfred Wooster were able to
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just outside Berlin. The camp had been a horse racecourse. During internment the detainees had a large degree of freedom. They had access to books, and Ellis made good use of his time to study. Another detainee in the camp was
289:. He was president of the British Coal Utilization Research Association from 1946 to 1955 and a member of the advisory council to the minister of fuel and power from 1947 to 1955. He became scientific adviser to the
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who were investigating the possibility of using nuclear fission to develop new weapons. He became scientific adviser to the army council from 1943 to 1946, serving on several high-level committees. He was
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and alpha particles for nuclear disintegration experiments Ellis studied beta and gamma radiation. He became a leading authority on the subject, publishing many articles in scientific journals.
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After World War II Ellis held several posts which were not related to nuclear weapons. He was director of the
Finance Corporation for Industry, in charge of research and development for the
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In 1921 Ellis had become a fellow of
Trinity College and was appointed assistant lecturer in natural science. In 1925 he married Paula Warzcewska, the daughter of a wealthy Polish
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establish conclusively that the energies were distributed continuously at the electrons' emission from the nucleus. Before this result, Ellis had engaged in a long dispute with
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In 1927 Ellis and
William Alfred Wooster (1903–1984) performed an important experiment with β-rays. Their experiment led to Pauli's suggestion of the neutrino.
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211:. Although there were no children Paula (known as Polly in England) had a daughter from a previous marriage. In 1929 he was elected a fellow of the
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who had become professor of natural sciences at
Cambridge. Ellis continued his research alongside his new teaching and administration commitments.
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and scientific administrator. His work on the magnetic spectrum of the beta-rays helped to develop a better understanding of nuclear structure.
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154:. Chadwick inspired Ellis and together they erected a laboratory in one of the horse stables where they undertook scientific experiments on the
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and various diseases was just starting to be suspected. He retired from the Gas
Council in 1966 and from BAT in 1972.
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During his final decade his health was poor. In 1980 he died in a nursing home in
Cookham after a short illness.
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Proceedings of the Royal
Society of London. Series A, Containing Papers of a Mathematical and Physical Character
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in
Germany, who held that that the electrons were slowed down unevenly only after being emitted.
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Franklin, Allan (April 2016). "Physics
Textbooks Don't Always Tell the Truth".
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Redirecting Science: Niels Bohr, Philanthropy, and the Rise of Nuclear Physics
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In 1930 Rutherford, Chadwick and Ellis published together a classic monograph
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Ellis, C. D.; Wooster, W. A. (1927). "The Continuous Spectrum of β-Rays".
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where he excelled academically as well as at sport. In 1913, he became a
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in artificial radioactivity. In 1936 Ellis was elected a fellow of the
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Jeffrey A. Hughes (2004). "Ellis, Sir Charles Drummond (1895–1980)'".
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After the war Ellis decided to abandon a military career. He entered
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Ellis was the son of Abraham Charles Ellis, a general manager of the
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In 1936, a year after Chadwick's appointment to a professorship at
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broke out. All British nationals were rounded up and sent to the
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242:”. He worked with W.J. Henderson on the energy distribution of
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238:. Mott said later that Ellis had “practically discovered the
507:(search on year=1936 and institution=University of Cambridge)
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257:, Ellis was appointed to the Wheatstone chair of physics at
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344:"Charles Drummond Ellis. 11 August 1895-10 January 1980"
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He was holidaying in Germany the following summer when
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Company (BAT) at a time when the association between
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Biographical Memoirs of Fellows of the Royal Society
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391:(online ed.). Oxford University Press.
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78:. Unsourced material may be challenged and
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230:During the early 1930s Ellis worked with
98:Learn how and when to remove this message
706:Fellows of the American Physical Society
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465:Ellis, C. D.; Henderson, W. J. (1934).
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388:Oxford Dictionary of National Biography
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420:Radiations from Radioactive Substances
418:Compton, Arthur H. (1931). "Review of
220:Radiations from Radioactive Substances
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150:for his work on the discovery of the
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76:adding citations to reliable sources
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126:in preparation for a career in the
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268:In 1940, Ellis became a member of
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681:People educated at Harrow School
625:Aaserud, Finn (17 August 2019).
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32:10 January 1980) was an English
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338:Hutchison, K.; Gray, J. A.;
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467:"Artificial radioactivity"
196:, where the director, Sir
182:Trinity College, Cambridge
17:Sir Charles Drummond Ellis
604:10.1007/s00016-016-0178-z
503:American Physical Society
248:American Physical Society
226:Discovery of the neutrino
518:"William Alfred Wooster"
304:Ellis–Wooster experiment
291:British American Tobacco
139:Ruhleben internment camp
40:Education and internment
696:Experimental physicists
234:on energy relations in
28:, 11 August 1895; died
584:Physics in Perspective
484:10.1098/rspa.1934.0149
397:10.1093/ref:odnb/31070
363:10.1098/rsbm.1981.0009
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499:"APS Fellow Archive"
190:Cavendish Laboratory
162:Career after the war
112:Metropolitan Railway
72:improve this section
596:2016PhP....18....3F
553:1927Natur.119..563E
287:National Coal Board
671:English physicists
646:The Ruhleben Story
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590:(1): 3–57.
356:: 199–233.
232:Nevill Mott
209:shipbuilder
148:Nobel Prize
135:World War I
655:Categories
407:required.)
340:Massey, H.
322:References
236:beta decay
612:253587173
444:0028-0836
255:Liverpool
244:positrons
194:Cambridge
158:process.
59:does not
34:physicist
26:Hampstead
342:(1981).
275:knighted
240:neutrino
592:Bibcode
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549:Bibcode
452:4140704
295:smoking
152:neutron
122:in the
80:removed
65:sources
30:Cookham
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541:Nature
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270:MAUD
63:any
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