The VS150 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.
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
Focal Length
Best Spectral Resolution 4200 grating
Wavelength Range (depends on grating)
Wavelength Accuracy
CCD QE for 110 - 400nm
CCD QE for 400 - 930nm
CCD QE for 930 - 1050nm
Minimum
151
112
-
10
15
3
Typical/Median
152.4
0.04
-
± 0.1
18
34
12
Maximum
153
1100
-
20
42
15
Units
mm
nm
nm
nm
%
%
%
Specifications
152.4mm (6 inches)
152.4mm (6 inches)
From 1200 to 4200 grooves per mm
Up to 12 steps of 40 to 200nm spanning from 112 to 1100nm (depending on grating)
<0.04nm in center of field with 4200 grooves per mm grating
Typical range of resolution is 0.04 to 2 nm depending on grating and slit
4200, 3600 l/mm grating 110 to 315 (2 steps) 1200 l/mm grating 110 to 950 (5 steps)
Effective range of f# 5.2 to 8.4
2048 pixel linear array with VUV/UV phoshor
Window adapter with 2.75” ConflatTM flange
Two USB 2.0 cables for data, power and servo
Focal Length (input)
Focal Length (output)
Available Gratings
Wavelength Range
Wavelength Resolution
Software selectable slits, order masks and dark shutter
Software selection of spectral range
Software selection of grating aperture
Detector
UHV Option
Connection
Spectrograph H x W x D (diagram below)
Vacuum interface H x Dia.
Allowance for purge connections
166.7 (6.6) x 195.6 (7.7) x 215.9 (8.5)
3.75 x 2.75
2
mm (inches)
Inches
Inches
Physical
Non-operational Temp. Range of
Spectrograph
Temp. Range of Vacuum Flange plus
Window
Ultimate Vacuum of Vacuum adapter
Minimum
-20
-50
1e-14
Maximum
70
220
1e-9
Units
oC
oC
mbar
Thermal
Typical/Median
22
22
1e-10
System Power Source
Current Consumption
USB 2.0
<500 mA
Electrical
Software and Drivers
Software drivers and demonstration programs are available for Visual Basic, Delphi, LabView and C++.
Interfacing can also be accomplished using the spectrograph virtual COM port. This allows low-level programming with
ASCII string commands.
We also include our spectrometer software, which allows:
•
Changing all CCD parameters (wavelength coefficients, integration time)
•
Slit width control
•
Spectrograph wavelength range control.
•
Spectrograph input aperture (input f#)
•
Multiple Graphical Modes
o
Transmittance
o
Absorbance
•
Software activated darks
•
Software activated references (field flats)
•
Data export (CSV, TXT, User selectable)
•
Store multiple spectra and graph multiple spectra
•
Rapid customization to user requirements
•
Library of Spectrophotometer Application Software
Mechanical Specifications of Spectrograph and Vacuum Interface
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
Detector Specifications
Detector QE
Window
Optical Bench
Vacuum Adapters
MgF2
Aluminum/6061 T6
304 SS, OFE Cu gaskets
Materials
Spectrograph
Vacuum Interface
3500 Gm.
550 Gm.
Mass