[ Identification | Description | Input parameters | Links ]

# The `DivLambda_monitor` Component

Divergence/wavelength monitor.

## Identification

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

## Description

    2D detector for intensity as a function of both horizontal divergence
    and wavelength.

    Example: DivLambda_monitor(nL=20, nh=20, filename="Output.div",
    xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1,
    maxdiv_h=2, Lmin=2, Lmax=10)

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default |
nL | 1 | Number of bins in wavelength | 20 |
nh | 1 | Number of bins in divergence | 20 |
nowritefile | 1 | If set, monitor will skip writing to disk | 0 |
filename | string | Name of file in which to store the detector image | 0 |
xmin | m | Lower x bound of detector opening | -0.05 |
xmax | m | Upper x bound of detector opening | 0.05 |
ymin | m | Lower y bound of detector opening | -0.05 |
ymax | m | Upper y bound of detector opening | 0.05 |
xwidth | m | Width of detector. Overrides xmin,xmax. | 0 |
yheight | m | Height of detector. Overrides ymin,ymax. | 0 |
maxdiv_h | degrees | Maximal horizontal divergence detected | 2 |
Lmin | AA | Minimum wavelength detected |  |
Lmax | AA | Maximum wavelength detected |  |
restore_neutron | 1 | If set, the monitor does not influence the neutron state | 0 |
nx | 1 |  | 0 |
ny | 1 | Vector definition of "forward" direction wrt. divergence, to be used e.g. when the monitor is rotated into the horizontal plane. | 0 |
nz | 1 |  | 1 |

AT ( | , | , |  | ) RELATIVE |  |
ROTATED ( | , | , |  | ) RELATIVE |

## Links

- Source code for `DivLambda_monitor.comp`.

[ Identification | Description | Input parameters | Links ]