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Question 1: What kind of plasma can I
measure with TranSpec?
In general all kind of plasma emission in the
spectral range of approximately 200-1000 nanometers can be measured by
TranSpec. Also, it is not necessarily required to connect the TranSpec-DSP
spectrometer to a vacuum chamber using a fiber optics coupled flange (see
also Question 2 and Question 3).
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Question 2:
What is the KF-Flange with Fiber Optics Coupler for?
The fiber optics coupled flange is required only for
emission measurement in a low-pressure chamber. The flange ensures to seal
the low pressure inside the chamber from the regular pressure outside the
chamber, even if no fiber optics cable is connected on either side. Such a
flange is checked down to 0.00001 mbar.
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Question 3:
What is the special Vacuum Fiber Optics Cable for?
In order to measure the plasma emission in a
low-pressure chamber, we use specially manufactured fiber optics cables,
whose fibers are fixed by an remittance-free glue. In addition, these fibers
do not have the common PE (Polyethylene) jacket, because that would outgas.
The vacuum fiber optics cable is connected inside the chamber to the special
flange with fiber optics coupler (see also Question 2).
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Question 4:
What is the Temperature Limit of the Vacuum Fibers
The standard version of our vacuum fiber optics cable
work up to approximately 120 degrees Centigrade (250 degrees Fahrenheit).
Besides, we also provide very special high-temperature vacuum fiber optic
cables up to 300 degrees Centigrade (580 degrees Fahrenheit) and 600 degrees
Centigrade (1100 degrees Fahrenheit).
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Question 5:
What length of the Vacuum Fibers is available?
In principle every length you may need, from a few inches
(for very small chambers) up to a few meters. Note that, due to the use of
the flexible vacuum fiber optics, the plasma emission can be observed at
different positions inside the chamber!
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Question 6:
What kind of maintenance work is required?
Pretty much none at all. The TranSpec-DSP spectrometer is
free-of-maintenance, there is especially no need to re-calibrate the
wavelengths during the entire life-time of the spectrometer.
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