[ Identification | Description | Input parameters | Output parameters | Links ]

The Res_monitor Component

Monitor for resolution calculations

Identification

• Author: Kristian Nielsen
• Origin: Risoe
• Date: 1999
• Version: 1.27
• Modification history:
  • EF, 16th Apr 2003: imported from Monitor_nD to enable many shapes

Description

A single detector/monitor, used together with the Res_sample component to
compute instrument resolution functions. Outputs a list of neutron
scattering events in the sample along with their intensities in the
detector. The output file may be analyzed with the mcresplot front-end.

Example: Res_monitor(filename="Output.res", res_sample_comp=RSample,
          xmin=-0.1, xmax=0.1, ymin=-0.1, ymax=0.1)

Setting the monitor geometry.
  The optional parameter 'options' may be set as a string with the
  following keywords. Default is rectangular ('square'):
    box                       Box of size xwidth, yheight, zthick
    cylinder                  To get a cylindrical monitor
                               (diameter is xwidth, height is yheight).
    banana                    Same as cylinder, without top/bottom,
                               on restricted angular area
    disk                      Disk flat xy monitor. radius is xwidth.
    sphrere                   To get a spherical monitor (e.g. a 4PI)
                               (diameter is xwidth).
    square                    Square flat xy monitor (xwidth, yheight)

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
filename	string	Name of output file. If unset, use automatic name	0
options	str	String that specifies the geometry of the monitor	0
res_sample_comp	no quotes	Name of Res_sample component in the instrument definition
xwidth	m	Width/diameter of detector (x)	.1
yheight	m	Height of detector (y)	.1
zthick	m	Thichness of detector (z)	0
xmin	m	Lower x bound of detector opening	0
xmax	m	Upper x bound of detector opening	0
ymin	m	Lower y bound of detector opening	0
ymax	m	Upper y bound of detector opening	0
zmin	m	Lower z bound of detector opening	0
zmax	m	Upper z bound of detector opening	0
bufsize	1	Number of events to store. Use 0 to store all	0
restore_neutron	1	: If set, the monitor does not influence the neutron state	0

Output parameters

Name	Unit	Description	Default
DEFS	struct	structure containing Monitor_nD Defines
Vars	struct	structure containing Monitor_nD variables
buffer_index	long	number of recorded events

Links

• Source code for Res_monitor.comp.

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[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri May 11 08:41:08 2012

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Last Modified: Friday, 11-May-2012 10:41:08 CEST