Teledyne Princeton Instruments PI-MAX 3, Системное руководство

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Appendix G Spectrograph Adapters 229
G.1.2 IsoPlane SCT-320 Spectrograph
Because the PI-MAX3 is mounted directly to the mounting plate on the IsoPlane
focusing and alignment is different from the way that focusing and alignment are
performed for a Teledyne Acton Research Series spectrograph. The following
information assumes that you are familiar with the locations of the mounting plate,
Micrometer Compartment, and the locking set screw. If not, refer to the IsoPlane
manual supplied with the spectrograph.
NOTES:
1. When adjusting focus for IsoPlane for the first time with
a PI-MAX3, it is likely that the IsoPlane focus mirror will
need to be adjusted. If the IsoPlane was previously used
with a PIXIS or other Teledyne Princeton Instruments
camera with a back focus distance of approximately
0.6 inches, the focus setting will need to be changed to
a much lower micrometer reading when focusing using
a PI-MAX3 since the PI-MAX3 has a back focus distance
of approximately 0.9 inches.
2. If the PI-MAX3 has a 25 mm intensifier, some vignetting
of the sides of the focal plane is normal. Vignetting is
much less likely to occur if the PI-MAX3 has an 18 mm
diameter intensifier.
3. If the IsoPlane was ordered with a shutter at the
entrance slit and a PI-MAX3 is to be used with this
IsoPlane, the shutter must either be removed from the
IsoPlane or controlled by a Teledyne Acton Research
SHC-EXT external shutter control box if one is available.
Refer to the IsoPlane manual for shutter removal
instructions.
Perform the following procedure to focus a PI-MAX3 when mounted on an IsoPlane
SCT-320 spectrograph:
1. Mount a Teledyne Acton Research light source such as the dual HG/NeAr source in
front of the entrance slit of the spectrograph.
2. With the spectrograph properly connected to the computer, turn the power on,
wait for the spectrograph to initialize.
3. With the PI-MAX3 mounted to the spectrograph and connected to the computer,
turn on the power and wait for the detector to initialize.
4. Boot the application software. If you are using WinSpec/32 you will need to define
the spectrograph. If you are using LightField, you will need to drag the icons for the
PI-MAX3 and the spectrograph into the Experiment Devices area.
5. Set the spectrograph to 435.8 nm if using a mercury source or to 0.0 nm if using a
broadband source.
6. Remove the cover from the Micrometer Compartment.
7. Using a 3/32” hex wrench, loosen the locking set screw.
8. While continuously acquiring data, adjust the micrometer until you maximize the
intensity level of a selected peak or peaks.
9. Tighten down the locking set screw.
10. Place the Micrometer Cover on the spectrograph. Replace and tighten all of the
cover screws.