Draft:Mats Lindroos

Swedish accelerator physicist. From Wikipedia, the free encyclopedia

Mats Lindroos (1961  2 May 2024) was a Swedish accelerator physicist, technical coordinator of the ISOLDE facility at CERN and head of the Accelerator Division at the European Spallation Source.

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Born1961 (1961)
Died (aged 62)
Institutions
Quick facts Mats Lindroos, Born ...
Mats Lindroos
Born1961 (1961)
Died (aged 62)
Alma materChalmers University of Technology
Scientific career
Institutions
Doctoral advisorBjörn Jonson
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Early life and education

Mats Lindroos received his PhD in subatomic physics from Chalmers University of Technology in Gothenburg, Sweden, in 1993.[1] He studied for his PhD degree also at University of Oxford (December 91 to September 93), in the Low Temperature Nuclear Orientation group, Clarendon Laboratory. He was also affiliated with the Cockcroft Institute.[2][3]

Immediately after his PhD degree, he joined the CERN ISOLDE physics group as a research fellow, participating in several experiments.[4] [5] [6] ISOLDE (Isotope Separator On Line Device) is a Radioactive Ion Beam (RIB) facility, running at CERN since 1967.

Career

Mats Lindroos became CERN Staff member in April 1995, associated to the AB department (PS-division).[7]

At CERN he held various positions of responsibility, as PS Booster supervisor, ISOLDE technical coordinator (April 2000- December 2006), responsible for the EURISOL DS, for the HIE-ISOLDE proposal (since 2006) and for the BENE (CARE Network)[8] and EURONU Design Study.[9]

HIE-ISOLDE, now operational, was aimed at increasing the energy of radioactive ion beams from 3 MeV per nucleon (MeV/u) to 5.5 MeV/u (achieved in 2014) and to 10 MeV/u (in 2018), while improving intensity by a factor of about 10 compared to existing facilities. The project focused on the construction of a superconducting linear accelerator (SC LINAC).[10]

The EURISOL Design Study[11] aimed to shape the ultimate ISOL Facility for Europe, with design intensities 100-1000 times more intense than existing facilities like ISOLDE.

Mats Lindroos was involved in the feasibility studies and performance assessments of neutrino beta-beams, a next-generation concept for artificial neutrino beams.[12] This approach offers absolute beam purity (pure electron neutrino/anti-neutrino beams, depending on the parent ion) and precise a priori knowledge of the neutrino flux and energy spectrum.[13]He authored the book "Beta Beams" (World Scientific, 2009).[14]

In 2009 Sweden and Denmark were selected as host countries for the European Spallation Source (ESS) designed to be the world's leading facility for research using neutrons.[15] Mats Lindroos joined the project on secondment from CERN. He modelled the Accelerator Division on the CERN model, as a collaboration of ten countries to finalize the technical design.  He led the accelerator Technical Design Report, delivered in 2013.[16] In 2014, Mats Lindroos was associated with Lund University as an adjunct professor.[3]

In 2015, he left CERN to formally join the ESS organization.[7] Since then, he led the Accelerator Division, stepping down in 2024 due to illness. He oversaw the design,[17] construction, and commissioning of the 2 GeV / 5 MW linear accelerator,[18] currently (as of 2026) operating at 800 MeV and 2 MW.[19]He had also been actively involved in exploring the physics potential of future ESS extensions, such as advanced neutron–antineutron oscillation experiments[20]  and artificial neutrino beams for next-generation neutrino oscillation experiments (ESSnuSB).[21]

Awards and honors

Mats Lindroos had been a member of the IJCLab strategic advisory board (France), the IN2P3 scientific committee (France), J-PARC technical advisory committee (Japan), the PIP-II Fermilab technical advisory committee (US) and CERN’s Scientific Policy Committee.[22]

A Mats Lindroos’ Remembrance and Beam on Dump Celebration Event was organized at ESS, Lund, on 19 May 2025.[23]

References

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