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McStas: DivPos_monitor

[ Identification | Description | Input parameters | Links ]

The DivPos_monitor Component

Divergence/position monitor (acceptance diagram).

Identification

  • Site:
  • Author: Kristian Nielsen
  • Origin: Risoe
  • Date: 1999

Description

2D detector for intensity as a function of both horizontal position
and wavelength. This gives information similar to an aceptance diagram used
eg. to investigate beam profiles in neutron guides.

Example: DivPos_monitor(nh=20, ndiv=20, filename="Output.dip",
xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1, maxdiv_h=2)

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
nh1Number of bins in position20
ndiv1Number of bins in divergence20
filenamestringName of file in which to store the detector image0
xminmLower x bound of detector opening-0.05
xmaxmUpper x bound of detector opening0.05
yminmLower y bound of detector opening-0.05
ymaxmUpper y bound of detector opening0.05
xwidthmWidth of detector. Overrides xmin,xmax.0
yheightmHeight of detector. Overrides ymin,ymax.0
maxdiv_hdegreesMaximal horizontal divergence detected2
restore_neutron1If set, the monitor does not influence the neutron state0
nx10
ny1Vector definition of "forward" direction wrt. divergence, to be used e.g. when the monitor is rotated into the horizontal plane0
nz11
nowritefile1If set, monitor will skip writing to disk0
AT ( , , ) RELATIVE
ROTATED ( , , ) RELATIVE

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[ Identification | Description | Input parameters | Links ]

Generated on 2024-01-03 11:47:43


Last Modified: Tuesday, 16-Apr-2024 20:05:22 CEST
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