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removed Category:1926 births; added Category:1923 births using HotCat

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{{short description|Indian physicist}}
{{EngvarB|date=October 2013}}
{{Use dmy dates|date=October 2013}}
{{Infobox person
| image =
| image_size =
| name = Ranjan Roy Daniel
| caption =
| birth_date = {{Birth date|df=yes|1923|08|11}}
|parents =
| birth_place = [[Nagercoil]], [[British India]]
|death_date = {{Death date and age|df=yes|2005|03|27|1923|08|11}}
[[Nagercoil]], Tamil Nadu, India
| alma_mater = [[Scott Christian College]]<br>[[University of Bristol]]
| occupation = Director Chairman of [[Tata Institute of Fundamental Research]]
| networth =
| spouse = Serena Padmini
| children = 4
| website =
| footnotes =
}}
'''Ranjan Roy Daniel''' (also referred to as '''R. R. Daniel''' or '''Rajan Roy''') (11 August 1923 – 27 March 2005) was an Indian [[Nagercoil]] born physicist who worked in the fields of [[cosmic rays]] and [[space physics]],<ref name="insa" /> and remained Director Chairman of [[Tata Institute of Fundamental Research]].<ref name = "CS">Stephens, S. A. (10 October 2005), [http://www.iisc.ernet.in/currsci/oct102005/1277.pdf "Ranjan Roy Daniel (1923–2005)"], ''Current Science'', Vol. 89, No. 7, pp. 1277–1279, [[Indian Institute of Science, Bangalore]] IISC.</ref> He also served as an advisor to the prime minister of [[India]], [[Indira Gandhi]] in 1976. He worked in the field of cosmic rays<ref>Daniel, Ranjan Roy (ed.) (1964). [https://books.google.com/books?id=ZWH0NAEACAAJ&redir_esc=y ''Proceedings: Modulation'']. International Union of Pure and Applied Physics. Cosmic Ray Commission, India. Dept. of Atomic Energy.</ref> with [[Homi Jehangir Bhabha]] for 23 years.

He was awarded the [[Padma Bhushan]] in 1992 by the [[Government of India]], for his contributions to science and engineering.<ref>{{cite web|title=Padma Awards Directory (1954–2009)|publisher=[[Ministry of Home Affairs (India)|Ministry of Home Affairs]]|url=http://www.mha.nic.in/pdfs/LST-PDAWD.pdf|url-status=dead|archive-url=https://web.archive.org/web/20130510095705/http://www.mha.nic.in/pdfs/LST-PDAWD.pdf|archive-date=10 May 2013|df=dmy-all}}</ref>

==Early life and education==
Daniel was born on 11 August 1923 in [[Nagercoil]] to M.A. Daniel Nadar and Theresa Chellammal Daniel. He was the third of five siblings. He received his early and secondary education at [[Scott Christian Higher Secondary School]] in his hometown, [[Nagercoil]]. After completing secondary school in 1939 from [[Scott Christian College]], he went on to pursue a BSc in physics from [[Loyola College, Chennai]], the [[University of Madras]].<ref name = "CS"/> Under the influence of the Indian Nobel laureate [[C. V. Raman|Chandrasekhara Venkata Raman]] he was advised to pursue the next phase of his education at [[Banaras Hindu University]], from which he received MSc (Physics) degree in 1946.<ref name = "CS"/><ref name=tata>Ghosh, Swarna Kanti (February 2006). [http://www.tifr.res.in/~alumni/TAANL2006b.pdf "Remembering Prof. R.R. Daniel"]. ''Sampark'', Vol. 4 No. 1, pp. 9–10. Tata Institute of Fundamental Research.</ref>

==Career==
He joined [[Tata Institute of Fundamental Research]] (TIFR) in 1947 as a scientist.<ref name=josh/> From there he was sponsored by the Indian government to carry out research studies in the UK at the [[University of Bristol]] in 1951. He carried out research in the H. H. Wills Physics Laboratory, headed by the Nobel laureate [[C. F. Powell]], using nuclear emulsions exposed to cosmic rays at high altitudes. He completed his PhD research under [[Donald Hill Perkins]] in April 1953.<ref name = "CS"/><ref name=tata/> He went on to TIFR throughout till his retirement in 1988.

He was made a Fellow of the [[Indian National Science Academy]] (INSA) in 1975, and was awarded the Vainu Bappu Award in 1992.<ref name="insa">{{Cite web |url=http://insaindia.res.in/detail/N75-0179 |title=Deceased Fellow:Rajan Roy Daniel |publisher=[[Indian National Science Academy]] |access-date=4 February 2013}}</ref>

==Personal life==
He married Serena Padmini, second daughter of G.M. Samuel and Annammal Samuel, in 1948, and the couple had four children. After his retirement he settled in Nagercoil.<ref name=josh>[http://joshfamily.com/362.html Serena Padmini]</ref> He died on 27 March 2005 after a prolonged illness.<ref name = "CS"/>

==References==
{{Reflist}}

==External links==
* [http://www.worldcat.org/identities/lccn-n89-102087 Works by Daniel, R. R. (Ranjan Roy)] [[WorldCat]]

{{PadmaBhushanAwardRecipients 1990–99}}
{{Authority control}}

{{DEFAULTSORT:Daniel, Ranjan Roy}}
[[Category:People from Kanyakumari district]]
[[Category:Indian astrophysicists]]
[[Category:1923 births]]
[[Category:2005 deaths]]
[[Category:Loyola College, Chennai alumni]]
[[Category:Banaras Hindu University alumni]]
[[Category:Alumni of the University of Bristol]]
[[Category:Recipients of the Padma Bhushan in science & engineering]]
[[Category:Tata Institute of Fundamental Research faculty]]
[[Category:20th-century Indian physicists]]
[[Category:People from Nagercoil]]
[[Category:Scientists from Tamil Nadu]]
[[Category:Cosmic ray physicists]]

Ranjan Roy Daniel - Revision history

>Johnpacklambert: removed Category:1926 births; added Category:1923 births using HotCat