Copyright Resonance Ltd., December 2011
143 Ferndale Drive North, Barrie, ON L4N 9V9 Tel: 705-733-3633 Fax: 705-733-1388 Email:sales@resonance.on.ca
VS150CT VUV to NIR Mini Spectrograph
The VS150CT is a Compact Czerny Turner spectrograph with excellent speed, spectral range and spectral resolution
with software control of slit size, input f#, order sorting filters, grating angle and dark exposures. For VUV operation the
spectrograph has a UHV window and laminar flow purge system, which allows operation down to the window short
wavelength cut-off (112 nm for MgF2). The spectrograph employs interchangeable gratings and can interface to a UHV
chamber or used on a benchtop in any orientation at the end of a 5-meter cable. Accessories include a built-in spectral
calibration lamp, a multi-spectral flat-light source and low-cost accessories such as telescopes, vacuum adapters, flow
controllers.
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Focal Length (input and output) 152.4 MM
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Available Gratings 1200 g/mm (110 to 950 NM), 2880 g/mm (110 to 340 NM)
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Wavelength Resolution (25 micron slit) 0.25 NM 1200 g/mm 0.9 NM 2880 NM
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Software selectable slit size 25, 50, 100, 200 and 400 microns
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Software selectable dark shutter to facilitate dark subtraction
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Software selectable order masks with short wave cutoffs at 160, 300 and 600 NM
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Software selection of spectral range with multi-step cam
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Software selection input f # from f/5.2 to f/10.4 for optimizing resolution and controlling exposure
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Standard Detector CCD with 2048 pixels with radiation resistant-VUV/UV phosphor
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Leveling screws allow alignment to beamline or other light source
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Software includes complete Graphical User Interface for control of 4 servos and acquisition/storage/display of
spectra
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Laptop cables vacuum interface software provided along with spectrograph so system can be operated in VUV right
out of the box
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UHV flange with MgF2 window
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Laminar flow He purge for VUV operation
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Volume/mass with UHV flange <0.3 cubic feet <7 liters
Mechanical Specifications of Spectrograph and Vacuum interface
The front 2.75-in flange can be attached to UHV chamber. Spectrograph is isolated with MgF2 window in
vacuum adapter. Purge can be dry N2, Ar, or He.
The Spectrometer can be removed from a vacuum chamber without breaking vacuum. This allows bake out
of the UHV chamber above the non-operational limit of the spectrometer.
