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SUMMARY:Special Colloquium in Memoriam Peter Armbruster
DTSTART:20260623T141500Z
DTEND:20260623T163000Z
DTSTAMP:20260618T060900Z
UID:indico-event-25197@indico.gsi.de
CONTACT:L.Wunderlich@gsi.de\;+49 (0)6159-71-1879
DESCRIPTION:Speakers: Matthias Schädel (GSI)\, Beatriz Jurado (LP2iB CNRS
 /IN2P3)\n\n\nSpecial Colloquium in Memoriam Peter Armbruster\n\nWelcome an
 d Introduction \nMatthias Schädel (GSI)\n\nPeter Armbruster – A Devote
 d Universal Explorer’s Passion for Separators and his Life Journey to Su
 perheavy ElementsProf. Dr. Dr. h.c. mult. Peter Armbruster\, an outstandin
 g personality\, was a gifted explorer with exceptional multiple talents\, 
 skills and interests. He was an internationally renowned atomic and nuclea
 r physicist. Born 25 July 1931 in Dachau\, Peter Armbruster experienced fo
 rmative years in his youth before studying physics at the TH Stuttgart and
  TH Munich\, where he obtained his doctorate (1961) and habilitation (1964
 ) under Professor Heinz Maier-Leibnitz. To pursue his research at the Muni
 ch Research Reactor (FRM)\, Peter Armbruster has built an innovative gas-f
 illed separator\; the beginning of a lifelong liking of these instruments 
 and a basis of his scientific career. Skipping interesting years of Peter 
 Armbruster as a scientist and science advisor at a variety of research ins
 titutes\, this contribution will focus on i) his role as one of the foundi
 ng directors of GSI (beginning 1971) – briefly mentioning selected aspec
 ts of the early period of GSI\, its founding and building the UNILAC accel
 erator and SHIP recoil separator – and ii) his pioneering contributions 
 from 1976 to 1989\, as the division head leading the SHIP group step-by-st
 ep to the discovery of the superheavy elements 107\, 108\, and 109\; later
  named bohrium\, Bh\, hassium\, Hs\, and meitnerium\, Mt\, respectively. A
 gain\, the three-year intermission period\, which began in 1989\, when he 
 was seconded to the European Institute Laue-Langevin (ILL)\, Grenoble\, as
  the Research Director\, will be skipped. Back at GSI in 1992\, he enjoyed
  the discovery of elements 110\, 111\, and 112 (1994-96) at the\, in the m
 eantime\, upgraded SHIP and the naming of these elements darmstadtium\, Ds
 \, roentgenium\, Rg\, and copernicium\, Cn\, respectively. With this enorm
 ous success\, which significantly contributed not only to our understandin
 g of one of the limits of nature and but also to the scientific reputation
  of GSI\, Peter Armbruster retired on July 31\, 1996. However\, in the sub
 sequent years\, he remained highly interested in all aspects of superheavy
  element research. As a real friend of the nuclear chemistry at the GSI\, 
 he closely observed the superheavy element research at the gas-filled sepa
 rator TASCA. For more than two decades after his retirement\, he attended 
 international conferences and remained a critical and inspiring discussion
  partner. Peter Armbruster\, a wonderful person\, passionate scientist\, d
 ear colleague\, good advisor\, and a nature and peace loving true European
  passed away on June 26\, 2024.\n\n\n\n\nBeatriz Jurado (LP2iB\, CNRS/IN2P
 3\, France)\n\nNuclear Fission: Questions Unanswered and Milestones Achiev
 edIn this presentation\, I will explore the fundamentals of nuclear fissio
 n\, tracing the history of its discovery and its profound impact on both s
 cience and society. I will then outline the current open questions in fiss
 ion research and present selected recent results obtained at GSI/FAIR. Thr
 oughout the talk\, I will highlight the foundational role of Peter Armbrus
 ter and his collaborators\, who revolutionized the field by introducing fi
 ssion studies in inverse kinematics.\n\n\nFond Memories Presented by Moniq
 ue Bernas\nClosing Remarks \n\nFrom ca 6:30pm: reception at the GSI Cante
 en. \nRegistration is required\, both for in-person and online participat
 ion! \n \n\n \nZoom Access: https://gsi-fair.zoom-x.de/j/68377952941Me
 eting-ID: 683 7795 2941 Kenncode: Coll-2306 \n\n \n\nhttps://indico.gsi.d
 e/event/25197/
LOCATION:Main Lecture Hall & Zoom (GSI)
URL:https://indico.gsi.de/event/25197/
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