D11lr_Definition.xml

<?xml version='1.0' encoding='ASCII'?>
<instrument xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.mantidproject.org/IDF/1.0" last-modified="2019-07-11 10:45:12.505447" name="D11lr" valid-from="2017-10-01 23:59:59" valid-to="2100-01-31 23:59:59" xsi:schemaLocation="http://www.mantidproject.org/IDF/1.0 http://schema.mantidproject.org/IDF/1.0/IDFSchema.xsd">
  <!-- This is the instrument definition file of the D11 Lowest momentum transfer & lowest background
       small-angle neutron scattering instrument at the ILL.
       Generated file, PLEASE DO NOT EDIT THIS FILE!
       This file was automatically generated by mantidgeometry/ILL/IDF/d11_generateIDF.py

       z axis defines the direction of the beam
       y axis will be the axis used for rotation
       coordinate system is right-handed

       y axis rotation defined by theta
       x axis rotation defined by phi
       z axis rotation defined by chi

       width x direction, height y direction

       Monochromator
       Incident wavelength 4.5 Angstrom <= wavelength <= 40 Angstrom
       Maximum wavelength at maximum detector distance of 39 m is 22 Angstrom
       Selector rotation normal to beam -7 deg to 7 deg
       Maximum wavelength at rotation -7 deg is 3.2 Angstrom

       Collimation
       11 guide sections
       Guide cross-section of 50 mm x 30 mm over 6.5 m
        Straight guide        50 mm x 45 mm over 28 m
                              50 mm x 45 mm -> 35 mm x 31.5 mm over 4 m
       Guide-to-sample distances are 1.5 m; 2.5 m; 4.0 m; 5.5 m; 8.0 m; 10.5 m; 13.5 m; 13.5 m; 16.5 m; 20.5 m; 28.0 m;
        34.0 m; 40.5 m;

       Sample
       Default sample dimension is 10 mm x 10 mm

       Multi-detector
       Sample-detector distances range from 1.2 m to 39 m
       Size 960 mm x 960 mm
       Pixel size 7.5 mm x 7.5 mm ( 128 x 128 pixels )

       For more information, please visit
       https://www.ill.eu/instruments-support/instruments-groups/instruments/d11/characteristics/
       -->
  <defaults>
    <length unit="metre"/>
    <angle unit="degree"/>
    <reference-frame>
      <along-beam axis="z"/>
      <pointing-up axis="y"/>
      <handedness val="right"/>
    </reference-frame>
    <default-view axis-view="z-" view="3D"/>
  </defaults>
  <!--SOURCE-->
  <component type="moderator">
    <location x="0.0" y="0.0" z="-2.0"/>
  </component>
  <type is="Source" name="moderator"/>
  <!--Sample position-->
  <component type="sample_position">
    <location x="0.0" y="0.0" z="0.0"/>
  </component>
  <type is="SamplePos" name="sample_position"/>
  <!--MONITORS-->
  <component idlist="monitors" type="monitors">
    <location/>
  </component>
  <type name="monitors">
    <component type="monitor">
      <location name="monitor1" z="-16.7"/>
      <location name="monitor2" z="-1.2"/>
    </component>
  </type>
  <!--MONITOR SHAPE-->
  <!--FIXME: Do something real here.-->
  <type is="monitor" name="monitor">
    <cylinder id="cyl-approx">
      <centre-of-bottom-base p="0.0" r="0.0" t="0.0"/>
      <axis x="0.0" y="0.0" z="1.0"/>
      <radius val="0.01"/>
      <height val="0.03"/>
    </cylinder>
    <algebra val="cyl-approx"/>
  </type>
  <!--MONITOR IDs-->
  <idlist idname="monitors">
    <id val="100000"/>
    <id val="100001"/>
  </idlist>
  <!--DETECTOR-->
  <component idfillbyfirst="y" idstart="0" idstepbyrow="128" type="detector">
    <location x="0.0" y="0.0" z="1.2"/>
  </component>
  <type is="rectangular_detector" name="detector" type="pixel" xpixels="128" xstart="0.47625" xstep="-0.0075" ypixels="128" ystart="-0.47625" ystep="0.0075"/>
  <!--PIXEL, EACH PIXEL IS A DETECTOR-->
  <type is="detector" name="pixel">
    <cuboid id="pixel-shape">
      <left-front-bottom-point x="-0.00375" y="-0.00375" z="5e-05"/>
      <left-front-top-point x="-0.00375" y="0.00375" z="5e-05"/>
      <left-back-bottom-point x="-0.00375" y="-0.00375" z="-5e-05"/>
      <right-front-bottom-point x="0.00375" y="-0.00375" z="5e-05"/>
    </cuboid>
    <algebra val="pixel-shape"/>
  </type>
</instrument>