The Model 833 SC200D CCD camera is a new member to the ORIUS™ family of high performance CCD cameras. It is a single 35mm port, 2k x 2k CCD (4M pixels), retractable lens-coupled camera designed with a special robust scintillator for resisting electron beam damage, up to 400kV. The SC200D is designed to deliver high resolution and TV readout speed for diffraction imaging applications in materials science. The combination of high quality optical technology, robust scintillator, high frame rate CCD sensor, and advanced CCD readout electronics (single/dual-port) has given the SC200D camera the best price-performance value.
技术参数:
Specifications
Camera construction
Single 35mm port, retractable lens-coupled CCD camera with high resolution phosphor scintillator
TEM operating voltage
Up to 400kV
CCD sensor
Progressive interline, 2048x2048 pixels, each pixel 7.4µ x 7.4µ
CCD active area
15mm x 15mm
Binning
1, 2 and 4x
Scintillator
Robust transmission phosphor scintillator; resistance to electron beam damage
Optics
1:1 lens coupled (custom lens)
Anti-blooming
On-chip
Retractability
Yes
Digitization
>30MHz, 14-bit
Acquisition speed
Up to 30fps, 4x binning full CCD (512 x 512 pixels)
Sensitivity (cnts/p.e.)
1–1.5 @ 200kV, 0.5 @ 300kV
Maximum dark current
< 2 counts/pixels/sec in 1x binning
Resolution (Nyquist scale)
0.5 @ 1x binning (100kV)
Gain uniformity
Transparent gain correction and dark subtraction; better than 10% rms in uncorrected images; better than 0.5% rms in gain corrected image
Exposure settings
100µs–10min
Non-linearity
< 2%
Cooling
Regulated Peltier-cooling; (10˚C), no fans used
CCD overheat protection
Yes
Replaceable scintillator
Yes
Water connection
Yes
Computer interface
IEEE 1394b (FireWire 800); compatible with 1394a with reduced fps
Auto exposure
Yes
X-ray shielding
PTB standard
EMC compliance
CE-EMC-IEC61326-1,Class A; Safety-IEC61010-1
Installation by Gatan
Required
Power requirement
<100W at 100, 120, 220, or 240 +/- 10% VAC at 50/60 Hz
Water connection
Yes, interconnect to existing TEM water line
Average shipping weight
30–90kg depending on configuration
Computer platform
Windows®2000/XP
Note: Specifications are subject to change
主要特点:
Figure 1 (a) SAED pattern from LaCoO3 recorded with Gatan ORIUS SC200D CCD camera at camera length of 600mm, exposure time of 10sec, and spot size #4 at 200kV; (b) Same pattern displayed in reverse contrast. Note the absence of any streaks in the pattern; (c) CBED pattern from LaCoO3 recorded with Gatan ORIUS SC200D CCD camera at camera length of 135mm,exposure time of 1sec (average of 30 frames), and spot size #9 at 200kV. Image is displayed on logarithm scale.
The unique design of this camera consists of a high quality custom designed optical lens system and a patented transmission scintillator. The optical lens offers the optimum in sensitivity and resolution for diffraction imaging applications. Combined with the exceptional anti-blooming performance of the CCD sensor, SC200D is an ideal camera for recording diffraction patterns. The high frame rate (up to 30fps) of the SC200D offers the user a new capability: TEM in-situ observations for material science applications. The SC200D can output high quality (gain normalized) LIVE images that are corrected for cosmetic defects or shading.
Features
Benefits
Robust scintillator
Resist electron beam damage in diffraction mode
High quality customer designed lens
Optimal sensitivity and resolution
35mm single port
Large field of view
4 Megapixel CCD sensor (2048x2048)
High resolution
Up to 30 frames per second readout speed (full CCD, 4x binning)
In-situ recording capabilities and viewing screen replacement
IEEE 1394b FireWire® computer interface for increased operation speed