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@INPROCEEDINGS{Zakalek:1005511,
      author       = {Zakalek, Paul},
      title        = {{HBS} {H}igh {P}ower {D}ensity {N}eutron {T}arget - {A}n
                      approach to meet the special requirements of {H}i{CANS}},
      reportid     = {FZJ-2023-01511},
      year         = {2023},
      abstract     = {Within the framework of the Jülich High Brilliance Neutron
                      Source (HBS) project, a high current accelerator based
                      neutron source(HiCANS) is developed. The main power-limiting
                      factor is the target that releases neutrons via nuclear
                      reactions from theimpinging protons. The neutron yield of
                      these nuclear reactions is quite small. This is compensated
                      with a high proton currentwhich leads to a strong heat
                      release inside the target. At the same time the target has
                      to be very compact. Overall, this leads tounique
                      requirements of the HBS target given by a 70 MeV pulsed
                      proton beam on a surface area of 100 cm² with a peak
                      current of100 mA and an average thermal power release of 100
                      kW inside the target. A solid tantalum target prototype with
                      an innovativemicro channel water cooling structure was
                      developed, manufactured, and tested at 1 kW/cm² with an
                      electron beam to matchthese requirements. Known challenges
                      from low energy targets like blistering, joining, lifetime,
                      and heat dissipation, as well asparticular challenges of the
                      HBS target design like coolant erosion, thermomechanical
                      stresses, and critical heat flux have beenconsequently
                      considered during the development. Here, we will present the
                      HBS target design, explain various measures taken tosolve
                      the challenges mentioned, and show the successful high heat
                      flux tests in the electron beam facility JUDITH 2. This work
                      ispart of the collaboration within ELENA and LENS on the
                      development of HiCANS.},
      month         = {Mar},
      date          = {2023-03-19},
      organization  = {Micro Symposium CANS 2 im Rahmen der
                       ECNS-Konferenz (19. - 23.03.2023), TUM
                       Department of Mechanical Engineering
                       and the new Science Congress Center
                       Munich (Germany), 19 Mar 2023 - 23 Mar
                       2023},
      subtyp        = {Invited},
      cin          = {JCNS-2 / PGI-4 / JCNS-HBS / JARA-FIT},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      I:(DE-Juel1)JCNS-HBS-20180709 / $I:(DE-82)080009_20140620$},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1005511},
}