GriF Fabry-Perot set-up procedures
To be done by CFHT staff
Before installing the FP in the GriF spacer, the following procedures
must be followed for the set-up of the FP:
- remove the Gumball densities
- check that the proper
resistance has been connected in the CS 100
- adjust the potentiometers of the CS 100 front panel
to the appropriate values
- close the loop on the CS 1000
- adjust by eye the parallelism of the FP
The FP can now be placed in the GriF spacer.
Then, the following procedures
must be followed:
- adjust the default values of the FP parallelism
- focus the different KIR filters and GriF grism(s?)
To be done then by the observer and/or the support
astronomer (as an introduction to GriF)
Preliminary operations to be followed: from the GriF Neptune session,
- open an first Xterm window (called "GriF Xterm"
in the following), type “grifin” and then “bash”
- open a second Xterm (called "IDL Xterm" in the
following), on which you log on kou (with the observer login/passwd), copy
/h/grif/idl/idl_setup on the home directory of the observer account, execute
"source idl_setup", change to directory "/h/grif", and run idl
- open a third Xterm (called "Phase Xterm" in the
following) and type “bash”
Then, the observer should follow the following procedures:
- first wavelength calibration
- check the parallelism of the FP
To be done then by the observer
The FP is now ready
for astronomical observations. These are made of the following operations:
- wavelength calibration
- type in the GriF Xterm " grifsetup clean" and "grifsetup
object" before doing the scan of the object (astronomical object, PSF, calibration
star)
- flat field (white
light cube)
In the following page, you will find the
different commands/files used with GriF