# Hartmut Zohm
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{{short description|German physicist}}
{{Infobox scientist
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| name = Hartmut Zohm
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| birth_date = {{birth date and age|1962|11|02}}
| birth_place = [Freiburg im Breisgau](/source/Freiburg_im_Breisgau), Germany
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| fields = [Plasma physics](/source/Plasma_physics)
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| education = [Heidelberg University](/source/Heidelberg_University), [Max Planck Institute](/source/Max_Planck_Institute_for_Plasma_Physics) (Ph.D.)
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| thesis_year = 1990
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| awards = {{plainlist|
* [Otto Hahn Medal](/source/Otto_Hahn_Medal) (1991)
* [John Dawson Award](/source/John_Dawson_Award) (2014)
* [Hannes Alfvén Prize](/source/Hannes_Alfv%C3%A9n_Prize) (2016)
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| website = {{URL|https://www.ipp.mpg.de/ippcms/de/for/bereiche/e1}}
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'''Hartmut Zohm''' (born 2 November 1962) is a German [plasma physicist](/source/Plasma_(physics)) who is known for his work on the [ASDEX Upgrade](/source/ASDEX_Upgrade) machine.[{{Cite journal|date=2015|title=Recent ASDEX Upgrade research in support of ITER and DEMO|journal=Nuclear Fusion|volume=55|issue=10|article-number=104010|doi=10.1088/0029-5515/55/10/104010|bibcode=2015NucFu..55j4010H|issn=0029-5515|author1=H. Zohmthe ASDEX Upgrade Team|author2=the EUROfusion MST1 Team|hdl=11858/00-001M-0000-0027-AA06-1|s2cid=124339322 |hdl-access=free}}][{{Cite journal|last1=Zohm|first1=H|last2=Gantenbein|first2=G|last3=Leuterer|first3=F|last4=Manini|first4=A|last5=Maraschek|first5=M|last6=Yu|first6=Q|last7=Team|first7=the ASDEX Upgrade|date=2007|title=Control of MHD instabilities by ECCD: ASDEX Upgrade results and implications for ITER|journal=Nuclear Fusion|volume=47|issue=3|pages=228–232|doi=10.1088/0029-5515/47/3/010|bibcode=2007NucFu..47..228Z|issn=0029-5515|hdl=11858/00-001M-0000-0027-052E-5|s2cid=21666846|hdl-access=free}}] He received the 2014 [John Dawson Award](/source/John_Dawson_Award)[{{Cite web|url=https://www.aps.org/programs/honors/prizes/prizerecipient.cfm?last_nm=Zohm&first_nm=Hartmut&year=2014|title=2014 John Dawson Award for Excellence in Plasma Physics Research Recipient|last=|first=|date=|website=American Physical Society|language=en|access-date=2020-03-23}}] and the 2016 [Hannes Alfvén Prize](/source/Hannes_Alfv%C3%A9n_Prize)[{{Cite web|url=http://plasma.ciemat.es/eps/awards/alfven-prize/|title=Alfvén Prize {{!}} European Physical Society – Plasma Physics Division|language=en-US|access-date=2020-03-23}}] for successfully demonstrating that neoclassical tearing modes in [tokamak](/source/tokamak)s can be stabilized by electron cyclotron resonance heating,[{{Cite journal|last1=Zohm|first1=H|last2=Gantenbein|first2=G|last3=Giruzzi|first3=G|last4=Günter|first4=S|last5=Leuterer|first5=F|last6=Maraschek|first6=M|last7=Meskat|first7=J|last8=Peeters|first8=A.G|last9=Suttrop|first9=W|last10=Wagner|first10=D|last11=Zabiégo|first11=M|date=1999|title=Experiments on neoclassical tearing mode stabilization by ECCD in ASDEX Upgrade|journal=Nuclear Fusion|volume=39|issue=5|pages=577–580|doi=10.1088/0029-5515/39/5/101|s2cid=250791805|issn=0029-5515}}][{{Cite journal|last1=Paola Mantica|last2=Richard Dendy|last3=Sylvie Jacquemot|date=2016-11-25|title=43rd European Physical Society Conference on Plasma Physics|journal=Plasma Physics and Controlled Fusion|language=en|volume=59|issue=1|article-number=010101|doi=10.1088/0741-3335/59/1/010101|issn=0741-3335|doi-access=free}}] which is an important design consideration for pushing the performance limit of the [ITER](/source/ITER).[{{Cite web |url=https://www.ipp.mpg.de/1084808/zohm |title=Hartmut Zohm |publisher=mpg.de |access-date=April 22, 2017}}]
== Early life and career ==
Zohm received his doctorate in 1990 from [Heidelberg University](/source/Heidelberg_University) and the [Max Planck Institute for Plasma Physics](/source/Max_Planck_Institute_for_Plasma_Physics) in [Garching, Germany](/source/Garching_bei_M%C3%BCnchen). His doctoral thesis "Investigation of Magnetic Modes in the [ASDEX Tokamak](/source/ASDEX_Upgrade)" received the [Otto Hahn Medal](/source/Otto_Hahn_Medal) in 1991.{{Citation needed|date=March 2020}} He was a post-graduate student at [General Atomics](/source/General_Atomics) in [San Diego, California](/source/San_Diego). In 1996, he habilitated in experimental physics at the [University of Augsburg](/source/University_of_Augsburg) and was professor for electrical engineering and plasma research at the [University of Stuttgart](/source/University_of_Stuttgart) from 1996 to 1999. He has been a scientific member of the [Max Planck Institute for Plasma Physics](/source/Max_Planck_Institute_for_Plasma_Physics) since 1999 and heads the Tokamak scenario research area. In 2003, he became an honorary professor at [LMU Munich](/source/LMU_Munich).
With his department at the [ASDEX Upgrade](/source/ASDEX_Upgrade) (and [JET](/source/Joint_European_Torus)),[{{Cite web|url=https://www.ipp.mpg.de/ippcms/de/for/bereiche/e1|title=Tokamak-Szenario-Entwicklung|website=www.ipp.mpg.de|language=de|access-date=2020-03-23}}] he researches plasma states (tokamak scenarios), energy dissipation, particle control including the removal of helium ash and the control of edge instabilities (edge localized modes) for optimal operation of [ITER](/source/ITER) and [DEMO](/source/DEMOnstration_Power_Station).[{{Cite journal|last=Zohm|first=H|date=1996|title=Edge localized modes (ELMs)|journal=Plasma Physics and Controlled Fusion|volume=38|issue=2|pages=105–128|doi=10.1088/0741-3335/38/2/001|s2cid=250774421|issn=0741-3335|doi-access=free}}][{{Cite journal|last=Zohm|first=H.|date=1994|title=Dynamic behavior of the L-H transition|journal=Physical Review Letters|volume=72|issue=2|pages=222–225|doi=10.1103/physrevlett.72.222|pmid=10056090|bibcode=1994PhRvL..72..222Z|issn=0031-9007}}][{{Cite journal|last=Zohm|first=Hartmut|date=2010|title=On the Minimum Size of DEMO|journal=Fusion Science and Technology|volume=58|issue=2|pages=613–624|doi=10.13182/fst10-06|bibcode=2010FuST...58..613Z |s2cid=118759732|issn=1536-1055}}][{{Cite journal|last1=Zohm|first1=H|last2=Kallenbach|first2=A|last3=Bruhns|first3=H|last4=Fussmann|first4=G|last5=Klüber|first5=O|date=1990|title=Plasma Angular-Momentum Loss by MHD Mode Locking|journal=Europhysics Letters|volume=11|issue=8|pages=745–750|doi=10.1209/0295-5075/11/8/009|bibcode=1990EL.....11..745Z|issn=0295-5075|hdl=11858/00-001M-0000-0027-6544-0|s2cid=250852354|hdl-access=free}}]
== Honors and awards ==
Zohm is an elected fellow of the [American Physical Society](/source/American_Physical_Society).[{{Cite web|last=|first=|date=|title=APS Fellow Archive|url=https://www.aps.org/programs/honors/fellowships/archive-all.cfm?initial=&year=2016&unit_id=DPP&institution=Max-Planck-Institut+f%C3%BCr+Plasmaphysik|access-date=2020-03-23|website=American Physical Society|language=en}}]
In 1991 his doctoral thesis ''Investigation of Magnetic Modes in the ASDEX Tokamak'' received the [Otto-Hahn-Medal](/source/Otto_Hahn_Medal).
In 2014, he received the [American Physical Society](/source/American_Physical_Society)'s [John Dawson Award for Excellence in Plasma Physics Research](/source/John_Dawson_Award_for_Excellence_in_Plasma_Physics_Research) for "''the theoretical prediction and experimental demonstration of neoclassical tearing mode stabilization by localized electron cyclotron current drive".''