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

# The `ILL_H142` Instrument

The H142 S-curved cold guide at the ILL

## Identification

- Site: ILL
- Author: FARHI Emmanuel (farhi@ill.fr)
- Origin:ILL
- Date: April 7, 2004
- Version: 1.2

## Description

    The H142 S-curved cold guide at the ILL feeding IN12, T3 and LADI

    Example:
    mcrun -n 1e7 --format=Matlab --dir=WhiteBeam ILL_H142.instr m=1
    mcrun -n 1e7 --format=Matlab --dir=WhiteBeamSt ILL_H142.instr m=1 curved=0
    mcrun -n 1e7 --format=Matlab --dir=WhiteBeam2 ILL_H142.instr m=1 m142=2

## Input parameters

Parameters in boldface are required; the others are optional.

Name | Unit | Description | Default
--- | --- | --- | ---
m | 1 | m-value of first curved setion (H14) guide coating | 1
lambda | AA | central wavelength | 10
dl_percent | % | percentage from 0 to 100 for d_lambda/lambda | 170
H | m | height of 2nd H142 curved section | 0.12
curved | 1 | flag true when 2nd guide part is curved, else straight | 1
m142 | 1 | m-value of second curved setion (H142) guide coating | 1

## Links

- Source code for `ILL_H142.instr`.
- The IN12 TAS at the ILL

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