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@ARTICLE{Zhao:891392,
      author       = {Zhao, Dongye and Gierse, Niels and Wegner, Julian and
                      Pretzler, Georg and Oelmann, Jannis and Brezinsek,
                      Sebastijan and Liang, Yunfeng and Neubauer, Olaf and
                      Rasinski, Marcin and Linsmeier, Christian and Ding, Hongbin},
      title        = {{A}blation mass features in multi-pulses femtosecond laser
                      ablate molybdenum target},
      journal      = {Nuclear instruments $\&$ methods in physics research / B},
      volume       = {418},
      issn         = {0168-583X},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-01481},
      pages        = {54 - 59},
      year         = {2018},
      abstract     = {In this study, the ablation mass features related to
                      reflectivity of bulk Molybdenum (Mo) were investigated by a
                      Ti: Sa 6 fs laser pulse at central wavelength 790 nm.
                      The ablated mass removal was determined using Confocal
                      Microscopy (CM) technique. The surface reflectivity was
                      calibrated and measured by a Lambda 950 spectrophotometer as
                      well as a CCD camera during laser ablation. The ablation
                      mass loss per pulse increase with the increasing of laser
                      shots, meanwhile the surface reflectivity decrease. The
                      multi-pulses (100 shots) ablation threshold of Mo was
                      determined to be 0.15 J/cm2. The incubation coefficient
                      was estimated as 0.835. The reflectivity change of the Mo
                      target surface following multi-pulses laser ablation were
                      studied as a function of laser ablation shots at various
                      laser fluences from 1.07 J/cm2 to 36.23 J/cm2. The
                      results of measured reflectivity indicate that surface
                      reflectivity of Mo target has a significant decline in the
                      first 3-laser pulses at the various fluences. These results
                      are important for developing a quantitative analysis model
                      for laser induced ablation and laser induced breakdown
                      spectroscopy for the first wall diagnosis of EAST tokamak.},
      cin          = {IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000426223400008},
      doi          = {10.1016/j.nimb.2017.12.030},
      url          = {https://juser.fz-juelich.de/record/891392},
}