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{{Infobox scientist
| name = Swapan Chattopadhyay
| image = SwapanC.png
| image_size =
| caption =
| birth_date = {{Birth date and age|mf=yes|1951|12|26}}
| birth_place = [[Calcutta]], [[West Bengal]], [[India]]
| nationality = [[United States|American]]
| alma_mater = [[University of Calcutta]] (BSc) [[IIT, Kharaghpur]] (MSc) [[University of California, Berkeley]] (MS, PhD)
| thesis_title = On stochastic cooling of bunched beams from fluctuation and kinetic theory
| thesis_url = https://escholarship.org/uc/item/4f67r1ns
| doctoral_students =
| known_for =
| influences =
| awards =
| citizenship = United States
| signature = Swapan Ingram Signature.png
| spouse = Janet Chaterji
| children = 2
| field = [[Physics]]
| work_institution = [[Northern Illinois University]] and [[Fermi National Accelerator Laboratory]] (2014–) [[Cockcroft Institute]] (2007–2014) Universities of [[Liverpool]], [[Manchester]] and [[Lancaster, Lancashire|Lancaster]], [[UK]] (2007–2014) [[Thomas Jefferson National Accelerator Facility]] (2001–2007) [[University of California at Berkeley]] (1974–1982, 1984–2001, 2010–) [[Lawrence Berkeley National Laboratory]] (1976–1982, 1984–2001) [[CERN]] (1982–1984, 2008–)
| doctoral_advisors = Joseph J. Bisognano
| prizes =
}}
'''Swapan Chattopadhyay''' [[Fellow of the Royal Society of Edinburgh|CorrFRSE]] (born December 26, 1951) is an [[Indian American]] [[physicist]]. Chattopadhyay completed his PhD from the [[University of California, Berkeley|University of California (Berkeley)]] in 1982.<ref name=":0">{{Cite journal|last=Chattopadhyay|first=Swapan|date=1982-09-01|title=On stochastic cooling of bunched beams from fluctuation and kinetic theory|url=https://escholarship.org/uc/item/4f67r1ns|language=en}}</ref>

Currently, Chattopadhyay holds the Presidential Chair of Research, Scholarship and Artistry at [[Northern Illinois University]] (NIU) where he is Professor of Physics and Director of Accelerator Research. Concurrently he holds a joint appointment with [[Fermi National Accelerator Laboratory]] (Fermilab) where he is a distinguished scientist, member of the director's senior leadership team and director of the Cooperative Research and Development Agreement between Fermilab and NIU.<ref>{{Cite web|title=NIU Today - NIU, Fermilab land noted physicist in joint appointment|url=https://www.niutoday.info/2014/07/11/niu-fermilab-land-noted-physicist-in-joint-appointment/|access-date=2021-04-26|website=NIU Today|language=en-US}}</ref>

Chattopadhyay is a Fellow of the [[American Physical Society]],<ref>{{Cite web|title=APS Fellow Archive|url=http://www.aps.org/programs/honors/fellowships/archive-all.cfm|access-date=2021-04-23|website=www.aps.org|language=en}}</ref> [[American Association for the Advancement of Science]],<ref>{{Cite journal|last=Science|first=American Association for the Advancement of|year=2005|title=AAAS News and Notes|url=https://science.sciencemag.org/content/310/5748/634|journal=Science|language=en|volume=310|issue=5748|pages=634–637|doi=10.1126/science.310.5748.634|issn=0036-8075}}</ref> [[Institute of Physics]] (UK), [[Royal Society of Arts|Royal Society of Arts, Manufactures and Commerce]] (UK) and Corresponding Fellow of the [[Royal Society of Edinburgh]]<ref>{{Cite web|url=https://www.rse.org.uk/fellow/swapan-chattopadhyay/|title=Professor Dr Swapan Chattopadhyay CorrFRSE|date=2019-03-15|website=The Royal Society of Edinburgh|language=en-GB|access-date=2019-03-15}}</ref> and a member of many international panels and committees, including the "International Committee for Future Accelerators" and the [[DESY]] Science Council (2008–2013).<ref>{{Cite web|date=2013-04-05|title=DESY - SC - Members Scientific Council (September 2012)|url=https://web.archive.org/web/20130405111813/http://sc.desy.de/e7/|access-date=2021-04-26|website=web.archive.org}}</ref><ref>{{Cite web|date=May 2017|title=Professional resume: Prof. Swapan Chattopadhyay|url=https://www.niu.edu/clas/physics/_pdf/directory/Chattopadhyay-CV.pdf|url-status=live|website=Northern Illinois University, Department of Physics}}</ref>

==Early life and education==

===Early childhood===
Swapan Chattopadhyay was born in [[Calcutta]], [[India]] and spent his early childhood years in the [[Himalayas|Himalayan]] hill town of [[Darjeeling]]. The Indo-China conflict over the disputed territory of Tibet led the family to relocated to the metropolitan mega-city of Calcutta in the early 1960s, where he received high school and university education. He was awarded a high school diploma in 1967 as a National Scholar, graduating from [[Ballygunge Government High school|Ballygunge Government High School]] and was selected a National Science Talent Scholar in a nationwide competition. It was in this high school, that he was the beneficiary of the gifted mentorship of the school's physics teacher, Pramatha Nath Patra.

===Higher education and early career===
Chattopadhyay completed his [[Bachelor of Science|B.Sc]]. degree from [[Calcutta University]] in 1970 in [[physics]]. He continued his studies at the [[Indian Institute of Technology]] at [[Kharagpur]], for his post-graduate studies, completing his M.Sc. degree with specialization in [[Particle Physics]] in 1972.

Chattopadhyay then joined in 1972 the Physics department of the [[University of Oregon]]. However, over time, the draw towards the University of California at Berkeley got stronger and he joined the [[University of California, Berkeley|University of California at Berkeley]] in 1974, as a [[Doctor of Philosophy|Ph.D.]] student in the Department of Physics. After flirting for two years (1974–1976) with the inimitable Berkeley brand of theoretical particle physics, then known as the "[[S-matrix]]" and "[[Bootstrap model|Bootstrap]]" theories of "[[strong interactions]]", under tutelage of [[Geoffrey Chew|Prof. Geoffrey Chew]], Chattopadhyay was attracted away by accelerator physics dealing with charged particle and light beams. After having completed his PhD, he moved to CERN as an "attaché scientifique" in the [[Super Proton-Antiproton Synchrotron]], contributing to program of stochastic cooling of antiproton beams.<ref name=":1" />

==Career==
Chattopadhyay is noted for his pioneering contributions of innovative concepts, techniques and developments in [[particle accelerator#High-energy physics|high energy particle colliders]], coherent and incoherent light sources, ultrafast sciences in the [[femto-]] and [[atto-]] second regimes, superconducting linear accelerators and various applications of interaction of particle and light beams.<ref>{{Cite web|date=2017-04-22|title=Swapan Chattopadhyay and Omar Chmaissem - NIU - Huskie Spotlight|url=https://web.archive.org/web/20170422070929/https://www.niu.edu/spotlight/chattopadhyay-chmaissem.shtml|access-date=2021-04-26|website=web.archive.org}}</ref><ref name=":2">{{Cite web|date=14 November 2006|title=Swapan Chattopadhyay appointed to the UKs first Chair of Accelerator Physics and to be the Inaugural Director of The Cockcroft Institute|url=https://www.interactions.org/press-release/swapan-chattopadhyay-appointed-uks-first-chair-accelerator|url-status=live|access-date=2021-04-26|website=Interactions|language=en}}</ref> He has directly contributed to the development of many accelerators around the world, e.g. the [[Super Proton Synchrotron|Super Proton-Antiproton Synchrotron]] at [[CERN]],<ref name=":1">{{Cite journal|last=Chattopadhyay|first=S|last2=Dôme|first2=Georges|last3=Linnecar|first3=Trevor Paul R|last4=Boussard|first4=Daniel|date=1984|title=Feasibility study of stochastic cooling of bunches in the SPS|url=http://cds.cern.ch/record/149968|language=en|doi=10.5170/CERN-1984-015.197}}</ref> the [[Advanced Light Source]] at [[Lawrence Berkeley National Laboratory|Berkeley]],<ref>{{Cite journal|last=Jackson|first=A.|last2=Chattopadhyay|first2=S.|last3=Keller|first3=R.|last4=Kim|first4=C.|last5=Nishimura|first5=H.|last6=Selph|first6=F.|last7=Zisman|first7=M.|date=1988-06-01|title=The LBL advanced light source|url=https://www.osti.gov/biblio/6841206|language=English}}</ref> the asymmetric-energy electron-positron collider [[SLAC National Accelerator Laboratory#PEP II|PEP-II]] at [[Stanford]],<ref>{{Cite journal|last=Wienands|first=U.|last2=Anderson|first2=S.|last3=Assmannt|first3=R.|last4=Bharadwaj|first4=V.|last5=Cai|first5=Y.|last6=Clendenin|first6=J.|last7=Corredoura|first7=P.|last8=Decker|first8=F.J.|last9=Donald|first9=M.|last10=Ecklund|first10=S.|last11=Emma|first11=P.|date=March 1999|title=Beam commissioning of the PEP-II High Energy Ring|url=https://ieeexplore.ieee.org/document/792123/|journal=Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)|volume=5|pages=2993–2995 vol.5|doi=10.1109/PAC.1999.792123}}</ref> the Continuous Electron Beam Accelerator facility (CEBAF) at [[Thomas Jefferson National Accelerator Facility|Jefferson Lab]] and the [[Free electron laser|Free-Electron Lasers]] at Jefferson and [[Daresbury Laboratory|Daresbury Laboratories]].<ref>{{Cite journal|last=Freyberger|first=Arne|last2=Beard|first2=Kevin|last3=Bogacz|first3=S.|last4=Chao|first4=Yu-Chiu|last5=Chattopadhyay|first5=Swapan|last6=Douglas|first6=David|last7=Hutton|first7=Andrew|last8=Merminga|first8=Nikolitsa|last9=Tennant|first9=Christopher|last10=Tiefenback|first10=Michael|date=2004-07-01|title=The CEBAF Energy Recovery Experiment: Update and Future Plans|url=https://www.osti.gov/biblio/833909|language=English}}</ref>

He was formerly the [[John Cockcroft|Sir John Cockcroft]] Chair of Physics jointly at the Universities of [[University of Liverpool|Liverpool]], [[university of Manchester|Manchester]] and [[Lancaster University|Lancaster]]—the First Chair of accelerator physics in UK, named after the British [[Nobel Laureate]] credited with creating the field.<ref>{{Cite journal|date=March 2007|title=In brief|url=http://physicstoday.scitation.org/doi/10.1063/1.2718767|journal=Physics Today|language=en|volume=60|issue=3|pages=78–78|doi=10.1063/1.2718767|issn=0031-9228}}</ref><ref name=":2" /> In this role he was the Inaugural Director of the [[Cockcroft Institute]] (UK), having been appointed in April 2007. Prior to this he served as Associate Director of [[Thomas Jefferson National Accelerator Facility]] (2001–2007),<ref>{{cite journal|date=April 2001|title=People|url=https://cds.cern.ch/record/1733181|journal=CERN Courier|volume=41|issue=3|page=34}}</ref> Staff/ Senior Scientist and Founding Director of the Centre for Beam Physics at [[Lawrence Berkeley National Laboratory]] (1984–2001); and [[Science attaché|Scientific Attaché]] at CERN (1982–1984).<ref>{{Cite web|title=INSPIRE: Swapan Chattopadhyay author profile|url=https://inspirehep.net/authors/1013953|url-status=live|access-date=2021-04-26|website=inspirehep.net}}</ref>

After the period spent at CERN, Chattopadhyay returned to Lawrence Berkeley National Laboratory in 1984, where he led and defined the accelerator physics of the Advanced Light Source (ALS)<ref>{{Cite journal|last=Jackson|first=A.|last2=Chattopadhyay|first2=S.|last3=Keller|first3=R.|last4=Kim|first4=C.|last5=Nishimura|first5=H.|last6=Selph|first6=F.|last7=Zisman|first7=M.|date=1988-06-01|title=The LBL advanced light source|url=https://www.osti.gov/biblio/6841206|language=English}}</ref> and contributed to the conceptual design of the [[Superconducting Super Collider]] (SSC),<ref>{{Cite journal|last=Chao|first=A.|last2=Chattopadhyay|first2=S.|last3=Courant|first3=E.|last4=Hutton|first4=A.|last5=Keil|first5=E.|last6=Kurokawa|first6=S.|last7=Lambertson|first7=G.|last8=Pedersen|first8=F.|last9=Rees|first9=J.|last10=Seeman|first10=J.|last11=Sessler|first11=A.|year=1990|title=Workshop summary|url=https://aip.scitation.org/doi/abs/10.1063/1.39765|journal=AIP Conference Proceedings|volume=214|issue=1|pages=2–5|doi=10.1063/1.39765|issn=0094-243X}}</ref> pioneered the accelerator physics which underpinned the Berkeley-Stanford asymmetric B-factory (PEP-II) for [[CP-violation]] studies, and initiated the Berkeley FEL/Femtosecond X-ray Source and [[Plasma acceleration|Laser-Plasma Acceleration]] development. He was a Senior Scientist, a [[Visiting Scholar|Guest Professor]], and the Founder/Director of the Center for Beam Physics at Berkeley,<ref>{{Cite web|date=April 2017|title=ATAP News, April 2017|url=https://atap.lbl.gov/atap-news-april-2017/|url-status=live|access-date=2021-04-26|website=atap.lbl.gov}}</ref> until his move to Thomas Jefferson National Accelerator Facility in 2001 as the Associate Laboratory Director for Accelerators. At Thomas Jefferson National Accelerator Facility, he made critical advancements in microwave superconducting linear accelerators leading the way to current and future grand instruments of science such as the high precision CEBAF and its 12 GeV upgrade for precision research in [[hadron]]ic physics,<ref>{{Cite journal|last=Freyberger|first=Arne|last2=Beard|first2=Kevin|last3=Bogacz|first3=S.|last4=Chao|first4=Yu-Chiu|last5=Chattopadhyay|first5=Swapan|last6=Douglas|first6=David|last7=Hutton|first7=Andrew|last8=Merminga|first8=Nikolitsa|last9=Tennant|first9=Christopher|last10=Tiefenback|first10=Michael|year=2004|title=The CEBAF Energy Recovery Experiment: Update and Future Plans|url=https://www.osti.gov/biblio/833909|journal=|language=English}}</ref> [[Spallation Neutron Source]] at Oak Ridge National Laboratory, USA to advance [[neutron]] sciences and novel materials research, and the current [[superconducting]] version of the [[International Linear Collider]], to name a few.
His research at the Cockcroft Institute in UK included development of sources of "ultra-cold" [[Relativistic electron beam|relativistic free electron beams]] to advance coherent [[electron diffraction]] techniques; production of novel coherent and ultra-short pulses of [[photons]] (e.g. x-ray FELs); novel acceleration methods; investigation of [[photonic crystals]] and [[metamaterial]] structures for charged particle acceleration; novel high energy colliders; cavity search for "dark matter" and laboratory investigation of "[[dark energy]]" via [[atom interferometer]] techniques. Chattopadhyay is currently working for [[Fermilab]] and [[Northern Illinois University]] (NIU) acting as a distinctive professor and director of accelerator research.<ref>{{cite journal|title=Faces and places: Chattopadhyay returns to new challenges in the US|journal=CERN Courier|date=February 2014|volume=54|issue=7|page=32|url=http://iopp.fileburst.com/ccr/archive/CERNCourier2014Sep-digitaledition.pdf}}</ref>
Having contributed to the conception, design, construction, commissioning and operation of numerous accelerators for particle and nuclear physics, photon and neutron sciences around the world, with significant research accomplishments in advanced particle and photon beam physics,<ref>{{cite journal|last1=Chattopadhyay|first1=Swapan|title=Viewpoint: Accelerators for nano- and biosciences|journal=CERN Courier|date=October 2002|volume=42|issue=8|page=46|url=https://cds.cern.ch/record/1733391}}</ref><ref>{{cite journal|last1=Chattopadhyay|first1=Swapan|title=Viewpoint: Amazing particles and light|journal=CERN Courier|date=March 2007|volume=47|issue=2|page=50|url=https://cds.cern.ch/record/1734043}}</ref> and mentoring scientists around the world, in the developing nations in particular, in accelerator developments as a unifying global force among nations, Swapan Chattopadhyay is a frequently invited speaker and advisor at professional societies and government research agencies, serving on numerous editorial, advisory and review committees throughout the world.

He served as the Vice-Chair, Chair-elect, Chair and Past-Chair of the American Physical Society's Division of Physics of Beams (2007–2011). Chattopadhyay has delivered lectures throughout the world e.g. Saha Memorial Lecture,<ref>{{Cite web|last=|first=|title=Past Saha Memorial Lectures|url=http://www.saha.ac.in/web/?view=article&id=678&Itemid=|url-status=live|access-date=2021-04-26|website=Saha Institute of Nuclear Physics|language=EN-US}}</ref> Homi Bhabha Lecture, Raja Ramanna Memorial Lecture, and Cavendish Lecture among many.

==References==
{{Reflist|2}}

==External links==
* [https://inspirehep.net/author/profile/Swapan.Chattopadhyay.1 Scientific publications of Swapan Chattopadhyay] on [[INSPIRE-HEP]]

{{Authority control}}

{{DEFAULTSORT:Chattopadhyay, Swapan}}
[[Category:1951 births]]
[[Category:Accelerator physicists]]
[[Category:People associated with CERN]]
[[Category:Indian Institute of Technology Kharagpur alumni]]
[[Category:20th-century Indian physicists]]
[[Category:Living people]]
[[Category:People associated with Fermilab]]
[[Category:University of Calcutta alumni]]
[[Category:University of California, Berkeley alumni]]
[[Category:Scientists from Kolkata]]

Swapan Chattopadhyay - Revision history

>Bender the Bot: HTTP → HTTPS for Wayback Machine, replaced: http://web.archive.org/ → https://web.archive.org/ (2)