
ALEX-s
Direct-detection CCD spectroscopy for VUV, EUV and X-ray experiments, with a vacuum flange interface to the experiment.
- Detector
- Full-frame scientific CCD
- Digitization
- 18-bit
Direct VUV, EUV & X-ray
Direct-detection CCD imaging for VUV, EUV and X-ray experiments, with a vacuum flange interface to the experiment.
From photon to signal
Select the sensor coating for the actual wavelength or photon energy. The plots below preserve the manufacturer’s axes, legends and response conditions.
Select a figure to inspect the original axes, legend and curves.
Original manufacturer curves for the sensor and coating codes shown in the legend. Match the selected code to the performance matrix; the curves are reference response data, not a guaranteed value at every wavelength. The direct-detection plots retain photon-energy and wavelength axes. The separate silicon electron–hole-pair plot is not a QE curve.
The details behind the selection
Compare sensor configurations, coating options, operating limits and integration details directly below. Check the operating mode and temperature alongside each performance value.
| ALEXi Series | ALEXi 1k1k | ALEXi 2k2k | ALEXi 2k2k plus | ALEXi 4k4k | |||
|---|---|---|---|---|---|---|---|
| Sensor code | FI BI BI UV1 | BI DD | FI BI | BI DD BI UV1 | BI | BI | BI DD BI UV1 |
| Usable pixels (columns x rows) | 1024 x 1024 (FI) 1056 x 1027 (others) | 2048 x 2052 | 2048 x 2064 | 4096 x 4112 | |||
| Active image area | 13.3 mm x 13.3 mm | 27.6 mm x 27.6 mm | 30.7 mm x 30.7 mm | 61.4 mm x 61.4 mm | |||
| Pixel size | 13 µm x 13 µm | 13.5 µm x 13.5 µm | 15 µm x 15 µm | 15 µm x 15 µm | |||
| CCD sensor cooling | -100°C to 20°C | -75°C to 20°C | -90°C to 20°C | -90°C to 20°C | |||
| Full well capacity | 100 ke- | 120 ke- | 100 ke- | 150 ke- | 150 ke- | 150 ke- | 350 ke- |
| Register well capacity | 400 ke- | 400 ke- | 600 ke- | - | - | - | |
| Output node capacity | - | - | - | 900 ke- | 900 ke- | 600 ke- | |
| Typical read noise (e-) @ 50 kHz | 2.8 | 3.4 | 4.6 | 4.6 | 2.8 | ||
| Typical read noise (e-) @ 1 MHz | 6.4 | 7.0 | 8.5 | 8.5 | 5.8 | ||
| Typical read noise (e-) @ 3 MHz | 10.9 | 13.6 | 17.0 | 17.0 | 10.4 | ||
| Dark Current (e-/pixels/s) | 0.00015 @ -100°C | 0.0005 @ -100°C | 0.0005 @ -75°C | 0.05 @ -75°C | 0.00008 @ -90°C | 0.00008 @ -90°C | 0.0006 @ -90°C |
| Standard Mode gain (counts/e-) | 1 | 1 | 0.6 | 0.6 | 1 | ||
| High Capacity Mode gain (counts/e-) | - | 0.34 | 0.2 | 0.2 | 0.34 | ||
| CCD sensor type | Front-illuminated (FI), Back-illuminated (BI), Deep depletion fringe suppression (DD), Enhanced back-illuminated (BI UV1) | ||||||
| Blemish specifications | Grade 0 or Grade 1 (standard) as specified by sensor manufacturer. | ||||||
Compare performance at the stated readout frequency or acquisition mode, sensor temperature and coating. A dash does not mean zero.
| Parameter | Published specification |
|---|---|
| Pixel readout frequency | 50 kHz, 250 kHz, 1 MHz, 3 MHz (5 MHz for visualisation mode; up to 20 MHz with multi-output) |
| Readout modes | 2 output nodes for 1k1k & 2k2k cameras, 4 output nodes for 2k2k plus & 4k4k cameras |
| AD converter resolution | 18-bit |
| Linearity | Better than 99% |
| CCD epitaxial thickness | 15 µm standard, 40µm for deep depletion (DD) models |
| Flange types | ISO-F DN63, knife-edge sealed CF DN63, CF DN100, CF DN160, CF DN200 |
| Vacuum compatibility | With CF flange: 10⁻¹⁰ mbar (UHV capability) |
| Bakeout temperature | Max. +80°C |
| Flange - focal plane | 1k1k camera with CF DN63: 6mm; 2k2k with CF DN63: 5mm; 2k2k plus & 4k4k cameras with CF DN160: -27mm (all distance can be customised) |
| Temperature monitoring | Two thermistors at CCD sensor and thermoelectric cooler (hot side) |
| Data link | Gigabit Ethernet, USB 3.0 |
| Software | greateyes Vision software for Windows 11 |
| SDK and drivers | DLL for Windows; LabVIEW, EPICS, Linux, Python, Tango driver (optional) |
| TTL interface signals | Sync out, shutter out, 2 external trigger in |
| Operating conditions | Temperature: 0°C to 35°C ambient, relative humidity <80% (non-condensing) |
| Power supply | 1k1k & 2k2k: 80-264 VAC (typ. 115/230), 47-63 Hz (typ. 50/60), max. 1.1 A (230 V) / 1.9 A (115 V) 2k2k plus & 4k4k: 85-264 VAC (typ. 115/230), 47-63 Hz (typ. 50/60), max. 1.9 A (230 V) / 3.8 A (115 V) |
| Certification | CE |
| Dimensions (W x H x L) | 1k1k & 2k2k Camera body: 8.3 cm x 10.0 cm x 10.9 cm (3.27" x 3.94" x 4.29") 2k2k plus & 4k4k Camera body: 13.7 cm x 13.7 cm x 13.3 cm (5.39" x 5.39" x 5.24") |
| Weight | 2.9 kg (1k1k & 2k2k, CF DN63); 4.3kg (1k1k & 2k2k, CF DN100); 12.5kg (4k4k, CF DN160) |
| Order Code | Description |
|---|---|
| CF1 | Knife-edge sealed CF DN63 flange with threaded holes (only for 1k1k or 2k2k) |
| CF2 | Knife-edge sealed CF DN100 flange with through holes (only for 1k1k or 2k2k) |
| CF3 | Knife-edge sealed CF DN160 flange with through holes |
| CF4 | Rotatable, knife-edge sealed CF DN100 flange with through holes (only for 1k1k or 2k2k) |
| Parameter | Published specification |
|---|---|
| Image area | 13.3 mm × 13.3 mm |
| Pixel format | 1024 × 1024 (FI) / 1056 × 1027 (others) pixels |
| Pixel size | 13 µm × 13 µm |
| CCD sensor cooling | Min. -100°C to 20°C, forced air or liquid cooling |
| Distance flange - focal plane | 6 mm with CF DN63 flange |
| Dimensions (W x H x L) | 8.3 cm × 10.0 cm × 10.9 cm (3.27ʺ × 3.94ʺ × 4.29ʺ) |
| Weight | 2.9 kg (with CF DN63 flange) |
| Parameter | Published specification |
|---|---|
| Image area | 27.6 mm × 27.6 mm |
| Pixel format | 2048 × 2052 pixels |
| Pixel size | 13.5 µm × 13.5 µm |
| CCD sensor cooling | Min. -90°C to 20°C, forced air or liquid cooling |
| Distance flange - focal plane | 5 mm with CF DN63 flange |
| Dimensions (W x H x L) | 8.3 cm × 10.0 cm × 10.9 cm (3.27ʺ × 3.94ʺ × 4.29ʺ) |
| Weight | 2.9 kg (with CF DN63 flange) |
| Parameter | Published specification |
|---|---|
| Image area | 30.7 mm × 30.7 mm |
| Pixel format | 2048 × 2064 pixels |
| Pixel size | 15 µm × 15 µm |
| CCD sensor cooling | Min. -90°C to 20°C, forced air or liquid cooling |
| Distance flange - focal plane | 6 mm with CF DN63 flange |
| Dimensions (W x H x L) | 13.7 cm × 13.7 cm × 13.3 cm (5.39ʺ × 5.39ʺ × 5.24ʺ) |
| Weight | 12.5 kg |
| Parameter | Published specification |
|---|---|
| Image area | 61.4 mm × 61.7 mm |
| Pixel format | 4096 × 4096 pixels |
| Pixel size | 15 μm × 15 μm |
| CCD sensor cooling | Min. -90°C to 20°C, forced air or liquid cooling |
| Distance flange - focal plane | 27 mm |
| Dimensions (W x H x L) | 13.7 cm × 13.7 cm × 13.3 cm (5.39ʺ × 5.39ʺ × 5.24ʺ) |
| Weight | 12.5 kg |
| Order code | Included equipment | Order code | Included equipment |
|---|---|---|---|
| GE-VI01 | greateyes Vision software suite for Windows | — | — |
| GE-SDK01 | SDK for Windows (C/C++ based) | GE-StoB2m | 2m SMB to BNC connection cable x2 |
| GE-USB3m3 | 3m USB 3.0 cable type A to type C | GE-POW01 | Camera power supply with cabling |
| GE-GigE10m | 10m Ethernet cable | GE-ManCam | Camera instruction manual |
| Order Code | Description |
|---|---|
| Accessories for Imaging Purposes | |
| AL-SR25 | 25mm shutter for 1k1k camera, including shutter driver module |
| AL-SR45 | 45mm shutter for 2k2k & 2k2k plus cameras, including shutter driver module |
| GE-AE01 | Additional CF DN63 flange with a window of Beryllium, MgF2, UVFS or other materials, can be sealed with the camera flange, with a port for external vacuum pump, enables ALEX to be used in air independently |
| Accessories for Enhanced Cooling Performance | |
| GE-CR01 | Compact liquid cooling, circulating the coolant at room temperature for deep camera cooling |
| GE-CR02 | Recirculating water chiller, PID control with temp. from -5°C to 30°C for ultra-deep camera cooling |
| Software Development Kit (SDK) and Drivers | |
Plan the integration
Enlarge the mounting, connector and camera-outline drawings. Dimensions and model dependencies are retained.
Manufacturer drawing in the original units. Camera body, sensor location, ports and flange depend on the selected format and housing; use the model dimensions table to confirm the configuration.
Build your enquiry
Choose a published configuration, add the integration topics you want to discuss, and keep the exact model in your enquiry.
| Configuration | Pixels | Pitch / input | Cooling / acquisition | Read noise |
|---|---|---|---|---|
| 1024 × 1024 | 13 µm 13.3 × 13.3 mm | -100°C to +20°C | 2.8 e− @ 50 kHz | |
| 1056 × 1027 | 13 µm 13.3 × 13.3 mm | -100°C to +20°C | 2.8 e− @ 50 kHz | |
| 1056 × 1027 | 13 µm 13.3 × 13.3 mm | -100°C to +20°C | 2.8 e− @ 50 kHz | |
| 1056 × 1027 | 13 µm 13.3 × 13.3 mm | -100°C to +20°C | 2.8 e− @ 50 kHz | |
| 2048 × 2052 | 13.5 µm 27.6 × 27.6 mm | -75°C to +20°C | 3.4 e− @ 50 kHz | |
| 2048 × 2052 | 13.5 µm 27.6 × 27.6 mm | -75°C to +20°C | 3.4 e− @ 50 kHz | |
| 2048 × 2052 | 13.5 µm 27.6 × 27.6 mm | -75°C to +20°C | 3.4 e− @ 50 kHz | |
| 2048 × 2052 | 13.5 µm 27.6 × 27.6 mm | -75°C to +20°C | 3.4 e− @ 50 kHz | |
| 2048 × 2064 | 15 µm 30.7 × 30.7 mm | -90°C to +20°C | 4.6 e− @ 50 kHz | |
| 4096 × 4112 | 15 µm 61.4 × 61.4 mm | -90°C to +20°C | 4.6 e− @ 50 kHz | |
| 4096 × 4112 | 15 µm 61.4 × 61.4 mm | -90°C to +20°C | 2.8 e− @ 50 kHz | |
| 4096 × 4112 | 15 µm 61.4 × 61.4 mm | -90°C to +20°C | 2.8 e− @ 50 kHz |
Cooling limits depend on the selected sensor, ambient conditions and cooling arrangement. Read noise values are typical at the specified pixel-readout frequency; they are not frame rates.
Technical overview
Direct-detection CCD imaging for VUV, EUV and X-ray experiments, with a vacuum flange interface to the experiment.
| Detector | Full-frame scientific CCD |
|---|---|
| Digitization | 18-bit |
| Data interfaces | Gigabit Ethernet and USB 3.0 |
| Environment | Vacuum flange; cooling configuration dependent |
| Sensor choices | Front-illuminated, back-illuminated and deep-depletion options; model dependent |
Explore the wider range
6 product ranges · 28 camera configurations

Direct-detection CCD spectroscopy for VUV, EUV and X-ray experiments, with a vacuum flange interface to the experiment.

Direct-detection CCD imaging for VUV, EUV and X-ray experiments, with the complete detector operating inside the vacuum chamber.

Direct-detection CCD spectroscopy for VUV, EUV and X-ray experiments, with the complete detector operating inside the vacuum chamber.

Back-illuminated sCMOS direct detection for experiments that need higher acquisition rates alongside deep cooling.

Representative equipment; the complete configuration depends on your application.
Adapt sensor position, cooling, vacuum mechanics or readout to the geometry of your experiment.

Representative equipment; the complete configuration depends on your application.
A modular scientific imaging platform for mission-specific space instruments, developed with XCAM Scientific.