[ Identification | Description | Input parameters | Links ]

The `SE_example2` Instrument

Mockup of transmission Spin-Echo, written for PNCMI 2010 school in Delft. This version uses Pol_FieldBox for description of the fields.

Identification

Site: Templates
Author: Erik Knudsen, Peter Willendrup
Origin: Risoe
Date: June 2010

Description

This instrument shows the use of essential McStas polarisation components, including Pol_mirror, Pol_FieldBox and MeanPolLambda_monitor.

Pol_mirror is used to polarize and analyze the incoming and scattered beams.
Pol_FieldBox is used to define guidefields and flippers.
MeanPolLambda_montior is used to monitor beam polarisation.

Example: mcrun SE_example2.instr dBz=-0.0001,0.0001 -N41 -n1e5

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
POL_ANGLE	deg	Reflection angle of polarizer/analyzer	2
SAMPLE	1	Flag to include (0) or exclude incoherent scatterer	0
Bguide	T	Field magnitude in guide fields	0.1
Bflip	T	Magnitude of flipper fields,	3e-4
dBz	T	Magnitude field perturbation in first guide field	0
Lam	Angstrom	Mean wavelength of neutrons emitted from source	8
dLam	Angstrom	Wavelength spread of neutrons emitted from source	0.8

The SE_example2 Instrument

Identification

Description

Input parameters

Links

The `SE_example2` Instrument