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[ Identification | Description | Input parameters | Links ]
The ILL_H142_IN12 Instrument
The H142 S-curved cold guide at the ILL feeding IN12 TAS spectrometer
Identification
- Site: ILL
- Author: FARHI Emmanuel (farhi@ill.fr)
- Origin: ILL
- Date: April 7, 2004
Description
The H142 beam is the only S-curved guide at the ILL. It is used here to feed the IN12 TAS spectrometer (classical configuration).
Input parameters
Parameters in boldface are required; the others are optional.| Name | Unit | Description | Default |
| m | 1 | m-value of guide coating (H14/H142) | 1 |
| KI | Angs-1 | central wavevector for incoming neutrons | 2.662 |
| QM | Angs-1 | wavevector transfer modulus at the sample | 1.0 |
| EN | meV | energy transfer at the sample | 0.0 |
| verbose | verbose-mode toggle | 1 | |
| WM | m | Width of monochromator | 0.08 |
| HM | m | Height of monochromator | 0.12 |
| NHM | 1 | Number of vertical slabs composing the monochromator | 1 |
| NVM | 1 | Number of horizontal slabs composing the monochromator | 6 |
| RMV | m | Monochromator vertical curvature, 0 for flat, -1 for automatic setting | -1 |
| WA | m | Width of analyzer | 0.121 |
| HA | m | Height of analyzer | 0.118 |
| NHA | 1 | Number of horizontal slabs composing the analyzer | 11 |
| NVA | 1 | Number of vertical slabs composing the analyzer | 1 |
| RAH | m | Analyzer horizontal curvature, 0 for flat, -1 for automatic setting | -1 |
| L2 | m | Monochromator-Sample distance. Contains 2nd Collimator | 1.726 |
| L3 | m | Sample-Analyzer distance. Contains 3rd Collimator | 1.300 |
| L4 | m | Analyzer-detector distance. Contains 4th Collimator | 0.710 |
Links
- Source code for
ILL_H142_IN12.instr. - The IN12 TAS at the ILL
[ Identification | Description | Input parameters | Links ]
Generated on 2023-09-19 20:01:36
