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@ARTICLE{Prager:47986,
      author       = {Prager, M. and Grimm, H. and Kirstein, O.},
      title        = {{U}sing phase-space transformation for an improved hybrid
                      cold time-of-flight spectrometer},
      journal      = {Nuclear instruments $\&$ methods in physics research / A},
      volume       = {554},
      issn         = {0168-9002},
      address      = {Amsterdam},
      publisher    = {North-Holland Publ. Co.},
      reportid     = {PreJuSER-47986},
      pages        = {415 - 426},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The concept and layout of a time-of-flight spectrometer for
                      cold neutrons is presented which makes use of the principle
                      of phase-space transformation. Close to the focal plane
                      determined by a first-curved monochromator a second moving
                      crystal is placed. If moving with the right velocity this
                      crystal monochromatizes the neutron beam and reduces at the
                      same time its horizontal divergence. With pyrolithic
                      graphite as monochromator focusing can be realized for 5
                      angstrom <= lambda <= 6.5 angstrom. At lambda = 6 angstrom
                      an energy resolution delta E similar to 60 mu eV is
                      calculated. Compared to time-focusing instruments improved
                      momentum transfer resolution and good energy resolution at
                      all energy transfers is obtained. A reduction of intensity
                      by the second monochromator will be most likely balanced by
                      improved background. The wavelength dependence of the energy
                      focusing velocity restricts in practice the instrument to
                      one or two fixed wavelengths. The instrument does not need
                      an end position on a neutron guide. (c) 2005 Elsevier B.V.
                      All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IFF-INS},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB341},
      pnm          = {Instrumentierung für fortschrittliche Neutronenquellen},
      pid          = {G:(DE-Juel1)FUEK341},
      shelfmark    = {Instruments $\&$ Instrumentation / Nuclear Science $\&$
                      Technology / Physics, Particles $\&$ Fields / Spectroscopy},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000233978500037},
      doi          = {10.1016/j.nima.2005.08.104},
      url          = {https://juser.fz-juelich.de/record/47986},
}