SwissNeutronics AG - Bruehlstrasse 28 - CH-5313 Klingnau - Switzerland - phone: +4156 245 02 02 - tech@swissneutronics.ch

monochromator systems

SwissNeutronics provides integrated systems for monochromators. Several monochromators are installed in custom-made mechanisms to exchange the monochromators dependent on the specific requirements of the experiments. The systems are fully equipped and provide "push-button" solutions.

Focusing monochromator system HOPG/Heusler - HYSPEC, SNS (2010)

  • Monochromator array (HOPG)

     

    		Crystal:
    Crystal dimensions:
    Reflecting area:
    Number of rows:
    Number of columns:
    Gaps between rows:    		HOPG
    50 mm (w) x 12 mm (h) x 4 mm (t)
    300 mm (w) x 170 mm (h)
    13
    6
    1 mm
    Focusing features

     

    		Focusing direction:
    Focusing range:
    Accuracy:
    Repeatability:    		vertical (variable)
    600mm ≤ R ≤ ∞
    0.03° RMS (measured)
    < ±0.02° (measured)
    Actuation componenets

     

    		Motor:
    Rotary encoder:
    Switches:    		stepper motor
    encoder
    2 limit switches

     

    Monochromator array (Heusler)

     

    		Crystal:
    Crystal dimensions:
    Reflecting area:
    Number of rows:
    Number of columns:
    Gaps between rows:    		Heusler
    50 mm (w) x 15 mm (h) x 6 mm (t)
    150 mm (w) x 207 mm (h)
    13
    1 (3 Heusler per columns)
    1 mm
    Focusing features

     

    		Focusing direction:
    Focusing range:
    Accuracy:
    Repeatability:    		vertical (variable)
    flat -> Rv = 600 mm
    0.04° RMS (measured)
    < ±0.02° (measured)
    Actuation components

     

    		Motor:
    Rotary encoder:
    Switches:    		stepper motor
    encoder
    2 limit switches

     

    Monochromator changer

     

    		Translation direction:
    Translation range:    		vertical linear
    550 mm

3faces stage with 2d focusing monochromators - IN4 @ ILL (2009)

  • Monochromator arrays

     

    		Crystal:
    Crystal dimensions:
    Reflecting area:
    Number of rows:
    Number of columns:
    Gaps between rows:    		PG(002), Cu(220), Cu(111)
    20 mm (w) x 40 mm (h) x 2/6 mm (t)
    230 mm (w) x 204 mm (h)
    1
    11
    1 mm
    Focusing features

     

    		Focusing direction:
    Focusing range vertical:
    Focusing range horizontal:
    Accuracy:
    Repeatability:    		2d (hor. variable, vert. fixed)
    Rv = 1270 mm
    flat -> Rh = 2000 mm
    0.03° RMS (measured)
    < ±0.01° (measured)
    Actuation components

     

    		Motor:
    Rotary encoder:
    Switches:    		stepper motor
    resolver
    2 limit switches, 1 home switch

     

    Specials

     

    		Base plate for a rotary changer system incl. absorbing elements (borated aluminium) between monochromators