14.106 The TOFSANSdet McStas 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
Description
TOF monitor that calculates I of q.
Example: TOFSANSdet();
Input parameters
Parameters in boldface are required; the others are optional.
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Name |
Unit |
Description |
Default |
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|
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 |
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