Horiba Scientific Quanta-phi F-3029, Operation Manual

Page: 67 / 98

Quanta-
φ
rev. C (23 Apr 2010) Troubleshooting
5-1
Note:
The CD-
ROM’s number must match the number on the Integrat-
ing Sphere for the calibration to be valid. If the numbers do not
match, contact HORIBA Scientific.
5 : Generating Correction Files
Introduction
Just as gratings, filters, detectors, and other spectrometer components have response
characteristics that are functions of wavelength so do the optical components of the
Quanta-

integrating sphere. These characteristics are superimposed on spectra and
may yield a potentially misleading trace. For accurate intensity comparisons, such as
those required for quantum-yield determinations, optical fiber, filter- and spectrometer-
response characteristics must be corrected. Corrections are made for each of these po-
tential problems by generating and using radiometric correction factors for the Quanta-

.
For Quanta-

integrating spheres accompanying new instruments, HORIBA Scientif-
ic’s policy is to generate sphere-correction factors in the factory for each for the corres-
ponding detector-grating combinations specified for the system. All correction-factor
files are contained on the CD-ROM accompanying the accessory. You may, however,
generate your own Quanta-

correction files using an optional calibrating reflector ac-
cessory, with the following procedure.
Below are HORIBA sphere-correction ranges created in the factory for common detec-
tor-grating combinations:
Emission detec-
tor Grating Correction-file wavelength-range
(nm)
R928P 1200 grooves/mm × 500 nm
blaze 350–800
R928P 1200 grooves/mm × 330 nm
blaze 300–800
R2658P 1200 grooves/mm × 500 nm
blaze 350–1000
Synapse OE
CCD 100 grooves/mm × 450 nm
blaze 300–1000