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@ARTICLE{Chang:827147,
      author       = {Chang, Stefan and Dwyer, Christian and Barthel, Juri and
                      Boothroyd, Christopher Brian and Dunin-Borkowski, Rafal},
      title        = {{P}erformance of a direct detection camera for off-axis
                      electron holography},
      journal      = {Ultramicroscopy},
      volume       = {161},
      issn         = {0304-3991},
      address      = {Amsterdam},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2017-01345},
      pages        = {90 - 97},
      year         = {2016},
      abstract     = {The performance of a direct detection camera (DDC) is
                      evaluated in the context of off-axis electron holographic
                      experiments in a transmission electron microscope. Its
                      performance is also compared directly with that of a
                      conventional charge-coupled device (CCD) camera. The DDC
                      evaluated here can be operated either by the detection of
                      individual electron events (counting mode) or by the
                      effective integration of many such events during a given
                      exposure time (linear mode). It is demonstrated that the
                      improved modulation transfer functions and detective quantum
                      efficiencies of both modes of the DDC give rise to
                      significant benefits over the conventional CCD cameras,
                      specifically, a significant improvement in the visibility of
                      the holographic fringes and a reduction of the statistical
                      error in the phase of the reconstructed electron wave
                      function. The DDC's linear mode, which can handle higher
                      dose rates, allows optimisation of the dose rate to achieve
                      the best phase resolution for a wide variety of experimental
                      conditions. For suitable conditions, the counting mode can
                      potentially utilise a significantly lower dose to achieve a
                      phase resolution that is comparable to that achieved using
                      the linear mode. The use of multiple holograms and
                      correlation techniques to increase the total dose in
                      counting mode is also demonstrated.},
      cin          = {PGI-5 / ER-C-1 / ER-C-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)PGI-5-20110106 / I:(DE-Juel1)ER-C-1-20170209 /
                      I:(DE-Juel1)ER-C-2-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000367357500012},
      doi          = {10.1016/j.ultramic.2015.09.004},
      url          = {https://juser.fz-juelich.de/record/827147},
}