[ Identification | Description | Input parameters | Links ]

The ILL_IN5 Instrument

Identification

• Site: ILL
• Author: E. Farhi, J. Ollivier, Celia Castan Guerrero
• Origin: ILL
• Date: September 2018

Description

The IN5@ILL TOF spectrometer from chopper system to final detector, with sample.
The detector model includes Fe housing and tube cross talk absorbing masks
with angle restriction (neutrons that scatter in Fe in front of a tube and
enter a different tube are absorbed). This model does not include the H16 guide.

Example: lambda=4.5 Detector: Det_PSD_I=1.3e6

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
lambda	AA	mean incident wavelength	4.5
dlambda	AA	wavelength half width.	0.05
speed	rpm	chopper speed (60*frequency)	8500
ratio	1	velocity of chopper3 = velocity of chopper1 * ratio	0.5
housing	string	material used as detector housing. Use 0 or NULL for none.	"Fe.laz"
coh	string	sample coherent data file or NULL. Use powder LAZ/LAU or SQW file.	"Y3Fe5O12_YIG.laz"
inc	string	sample incoherent Sqw data file or NULL	"NULL"
thickness	m	thickness of sample. 0=filled	0
height	m	height of sample. 0=sphere	0.025
radius	m	radius of sample (outer).	0.005
order	1	order for scattering in sample. O=all, 1=single	0
wspot	meV	energy of dirac resolution spots	1
ttspot	deg	direction of dirac resolution spots	45
nspots	1	number of direc resolution spots	0
RESO	1	flag to indicate constant Q-e dirac grid ala IN4 model	1

Links

• Source code for ILL_IN5_Spots.instr.
• The IN5@ILL cold time of flight instrument

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[ Identification | Description | Input parameters | Links ]

Generated on 2024-01-03 11:47:43

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Last Modified: Tuesday, 17-Sep-2024 05:31:14 CEST