Component Manual for the Neutron Ray-Tracing Package McStas, version 3.8.6

10.13  The MeanPolLambda_monitor McStas Component

Polarisation and wavelength sensitive monitor.

Identification

Description

A square single monitor that measures the MEAN projection of the polarisation along a given normalized m-vector (mx, my, mz) as a function of wavelength.

Example: MeanPollambda_monitor(xwidth=0.1, yheight=0.1, npol=11, my=1, filename="meanpollambdaMon.data")

Input parameters

Parameters in boldface are required; the others are optional.

Name

Unit

Description

Default

xwidth

m

Width of detector

0.1

yheight

m

Height of detector

0.1

nL

1

Number of bins in wavelength

20

restore_neutron

1

If set, the monitor does not influence the neutron state

0

filename

string

Name of file in which to store the data

0

nowritefile

1

If set, monitor will skip writing to disk

0

mx

1

X-component of monitor vector (can be negative)

0

my

1

Y-component of monitor vector (can be negative)

0

mz

1

Z-component of monitor vector (can be negative)

0

Lmin

Å

Minimum wavelength detected

Lmax

Å

Maximum wavelength detected

Links