Residual horizontal deflection during scanning
-60
-50
-40
-30
-20
-10
00 100 200 300 400 500 600 700
photon energy (eV)
horiz
onta
l stre
erin
g re
quire
d (m
icro
rad)
Mismatch between mirror and grating angle
-120
-100
-80
-60
-40
-20
0
20
40
0 1 2 3 4 5 6
mirror angle (degrees)
corr
ectio
n to
gra
ting
(m
icro
radi
ans)
exit slit toroid, with horizontal steering servo-loop to slits monochromator, with mirror
and grating scanning
Beamline 11.0.2 Monoresidual steering effects
Generic Mono Modifications
-Chamber ports; *Reduce the number of flanges from 17 to 12 and view-ports from 9 to 3.
-Level; *Lower mounting surface.
-Linear stage; *Change 5TPI ball-screw to 50TPI standard screw in order to stop possible movement during power failure.
Generic Mono Modifications
-Hard stop; *Add external hard stop to
linear stages.
-Bellows cover; *Add detent for firm
attachment.
Generic Mono Modifications
-Cam Adjuster; *Increase outside diameter.*Add spanner holes.*Change reference flat.*Supply spanner wrench.
-Invar Bracket;*Increase gusset thickness.*Add cross brace.
Generic Mono Modifications
-Optic Adjusters; *Reduce body height to remove potential binding.*Change spanner nut to standard nut.*Increase spring maximum load to 25 lbs.
-Coolant tubes;*Reduce wall thickness for increased flexibility.
-Bellows;*Reduce outside diameter for better flange screw clearance.
Generic Mono Modifications
ZOOM OUT
Generic Mono Modifications
-Bellows, sine-arm;*Reduce outside diameter, increase length and moved toward flange to increase screw clearance and assembly access.
-Bellows, pre-mirror;*Reduce outside diameter to increase screw clearance.
-Coolant tubes;*Reduce wall thickness for increased flexibility.
-Mask, pre-mirror;*Remove large radius.
-Optic adjuster;*Counter-bore cradle for increased travel.
Generic Mono Modifications
-Pre-mirror angular Travel;*Increase range by 2 degrees.
-Range: 0-6 degrees.
-Center: 3 degrees
-Grating angular travel;*increase range by 1.0 degree and move center by 0.5 degrees.
-Range: 0-10 degrees.
-Center: 5 degrees
( Zero degrees was added for alignment purposes )