[ Identification | Description | Input parameters | Links ]

The `TOFSANSdet` Component

Multiple TOF detectors for SANS instrument. The component is to be placed at the sample position. For the time being better switch gravity off.

Identification

Author: Henrich Frielinghaus, FZJuelich
Origin: FZJ
Date: Apr 2013

Description

TOF monitor that calculates I of q.

Example: TOFSANSdet();

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
Nq	1	Number of q-bins	100
plength	s	Pulse length	0.00286
ssdist	m	Source-Sample distance for TOF calculation.	27.0
coldis	m	Collimation length	20.0
Sthckn	cm	sample thickness	0.1
ds1	m	distance of detector 1	1.0
xw1	m	width of detector 1 (0 for off)	0.0
yh1	m	height of detector 1 (0 for off)	0.0
hl1	m	w/h of hole in det 1 (0 for off), full width	0.0
ds2	m	distance...........2	5.0
xw2	m	width..............2	1.0
yh2	m	heigth.............2	1.0
hl2	m	hole...............2	0.2
ds3	m	distance of detector 3	20.0
xw3	m	width..............3	1.0
yh3	m	height.............3	1.0
hl3	m	hole...............3 (beam stop, used for primary beam detection)	0.04
vx3		vertical extension of beam stop down (in case of gravity off set 0.0, otherwise value larger than 1.0)	0.0
tmin	s	Beginning of time window	0.005
tmax	s	End of time window	0.15
Nx		Number of horizontal detector pixels (detector 1,2,3) better leave unchanged	128.0
Ny		Number of vertical detector pixels (detector 1,2,3) better leave unchanged	128.0
Nt		Number of time bins (detector 1,2,3) better leave unchanged	500.0
qmin	1/A	Lower limit of q-range	0.0005
qmax	1/A	Upper limit of q-range	0.11
rstneu		restore neutron after treatment ??? (0.0 = no)	0.0
centol		tolerance of center determination (if center larger than centol*calculated_center then set back to theory)	0.1
inttol		tolerance of intensity (if primary beam intensity smaller than inttol*max_intensity then discard data)	0.0001
qcal		calibration of intensity (cps) to width of q-bin (non_zero = yes, zero = no)	1
fname		file name (first part without extensions)	0

AT (	,	,		) RELATIVE
ROTATED (	,	,		) RELATIVE

The TOFSANSdet Component

Identification

Description

Input parameters

Links

The `TOFSANSdet` Component