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

The ILL_H512_D22 Instrument

The H512 cold guide at the ILL, with D22

Identification

• Site: ILL
• Author: FARHI Emmanuel (farhi@ill.fr)
• Origin: ILL
• Date: May, 2011

Description

This model describes the H512 cold guide at the ILL, with D22.

The D22 Large dynamic range small-angle diffractometer
is fully simulated. A sample can be specified (liquid),
with monitoring of the scattering in angular (diffraction) and energy modes
(for spectroscopy).

Examples

(Test cases in bold)

• Test: lambda=4.5 Detector: D22_Detector_I=2e+07
• Flux given at sample positions from
• ILL_H5: D22: nu=23589.5 [rpm] lambda=4.5 [Angs] sample=H2O_liq.qSq
• Flux 1.2e8 -- 7.1e7

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
lambda	AA	central wavelength band for guide illumination and D22 velocity selector setting wavelength	4.5
dlambda	AA	half width of guide wavelength band	.45
D22_collimation			2
D22_sample	string	D22 liquid/powder/amorphous sample	"H2O_liq.qSq"

Links

• Source code for ILL_H512_D22.instr.

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

Generated for mcstas 3.8.4

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Last Modified: Friday, 11-Sep-2026 15:00:09 CEST