Instruction manual

7. Hardware Validation
7-48
RF-20A/20Axs
4. Calculation of the angle of turn required to
move the emission grating to the 0 nm
position
The angle of turn required to move the emission grating
from the home position to the 0 nm position is
calculated.
5. Movement of the emission grating to the
region of the 254 nm position
Scan the emission side grating in the vicinity of the low-
pressure Hg (mercury) lamp's emission line wavelength
of 254 nm, and record the peak of light intensity with the
photosensor at the emission side.
6. Calculation of the angle of turn required to
move the emission grating to the 254 nm
position
The angle of turn required to move the emission grating
from the home position to the 254 nm position is
calculated.
7. Movement of the excitation grating to the
0nm position
The emission grating is moved to the 254 nm position
found in step 5.
Next, scan the excitation side grating in the vicinity of
0 nm, and record the peak of light intensity with the
photosensor at the emission side.
8. Calculation of the angle of turn required to
move the excitation grating to the 0 nm
position
The angle of turn required to move the excitation
grating from the home position to the 0 nm position is
calculated.
9. Movement of the excitation grating to the
254 nm position
The emission grating is moved to the 254 nm position
found in step 5.
Next, scan the excitation side grating in the vicinity of
the low-pressure Hg (mercury) lamp's emission line
wavelength of 254 nm, and record the peak of light
intensity with the photosensor at the emission side.
10. Calculation of the angle of turn required
to move the excitation grating to the
254 nm position
The angle of turn required to move the excitation
grating from the home position to the 254 nm position is
calculated.