
ELSE-s
Deep-cooled, full-frame CCD spectroscopy for weak optical signals across UV, visible and near infrared.
- Detector
- Full-frame scientific CCD
- Digitization
- 18-bit
Direct VUV, EUV & X-ray
Direct-detection CCD spectroscopy 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.
| ALEXs Series | ALEXs 1k128 | ALEXs 1k256 | ALEXs 2k512 | |
|---|---|---|---|---|
| Sensor code | FI | FI FI DD BI UV1 | FI BI BI UV1 | |
| Usable pixels (columns x rows) | 1024 x 127 | 1024 x 255 | 2048 x 515 | |
| Active image area | 26.6 mm x 3.3 mm | 26.6 mm x 6.7 mm | 27.6 mm x 6.9 mm | |
| Pixel size | 26 µm x 26 µm | 26 µm x 26 µm | 13.5 µm x 13.5 µm | |
| Full well capacity | 500 ke- | 500 ke- / 700 ke- (DD) | 100 ke- | |
| Register well capacity | 1 000 ke- | 1 000 ke- / 1 400 ke- (DD) | 400 ke- | |
| Typical read noise (e-) @ 50 kHz @ 1 MHz @ 3 MHz | 4.4 11.0 25.0 | FI 4.2 12.0 25.0 | BI 6.0 13.1 26.0 | 3.5 6.8 10.7 |
| Dark Current @ -100°C | 0.0004 e-/pixels/s | 0.0004 e-/pixels/s 0.005 e-/pixels/s (DD) | 0.00025 e-/pixels/s | |
| Standard Mode gain | 0.4 counts/e- | 0.4 counts/e- | 1 counts/e- | |
| High Capacity Mode gain | - | - | 0.34 counts/e- | |
| CCD sensor type | Front-illuminated (FI), Back-illuminated (BI), Deep depletion (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) |
| 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 |
| Distance flange - focal plane | 6 mm for CF DN63, 8 mm for CF DN100 (can be customised) |
| CCD sensor cooling | -100°C to 20°C, forced air or liquid cooling |
| 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 | 80-264 VAC (115/230 typical), 47-63 Hz (50/60 typical), max. 1.1 A (230 VAC), 1.9 A (115 VAC) |
| Certification | CE |
| Dimensions (W x H x L) | Camera body: 8.3 cm x 10.0 cm x 10.9 cm (3.27" x 3.94" x 4.29") |
| Weight | 2.9 kg (with CF DN63 flange) |
| Order Code | Description |
|---|---|
| CF1 | Knife-edge sealed CF DN63 flange with threaded holes |
| CF2 | Knife-edge sealed CF DN100 flange with through holes |
| CF4 | Rotatable, knife-edge sealed CF DN100 flange with through holes |
| We also provide quick release, r | otatable, and other flanges of various sizes - please let us know your requirements |
| Parameter | Published specification |
|---|---|
| Image area | 26.6 mm × 3.3 mm |
| Pixel format | 1024 × 127 pixels |
| Pixel size | 26 µm × 26 µm |
| CCD sensor cooling | Min. -100°C to 20°C, liquid cooling or forced air |
| Distance flange - focal plane | 6.0 mm for CF DN63 or8 mm for CF DN100 |
| Dimensions (W x H x L) | 8.3 cm × 10.0 cm × 10.9 cm (3.27" × 3.94" × 4.29") |
| Weight | 2.9 kg |
| Parameter | Published specification |
|---|---|
| Image area | 26.6 mm × 6.7 mm |
| Pixel format | 1024 × 255 pixels |
| Pixel size | 26 µm × 26 µm |
| CCD sensor cooling | Min. -100°C to 20°C, forced air or liquid cooling |
| Distance flange - focal plane | 6 mm for CF DN63 |
| 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 × 6.9 mm |
| Pixel format | 2048 × 515 pixels |
| Pixel size | 13.5 µm × 13.5 µm |
| CCD sensor cooling | Min. -100°C to 20°C, forced air or liquid cooling |
| Distance flange - focal plane | 6 mm for CF DN63 |
| 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) |
| Order code | Included equipment |
|---|---|
| GE-VI01 | greateyes Vision software suite for Windows |
| GE-SDK01 | SDK for Windows (C/C++ based) |
| GE-USB3m3 | 3 m USB 3.0 cable type A to type C |
| GE-GigE10m | 10 m Ethernet cable |
| GE-StoB2m | 2 m SMB to BNC connection cable x2 |
| GE-POW01 | Camera power supply with cabling |
| GE-ManCam | Camera instruction manual |
| Order Code | Description |
|---|---|
| Accessories for Imaging Purposes | |
| AL-SR45 | 45 mm shutter, including shutter driver module (compatible with CF DN100 or larger) |
| 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 × 127 | 26 µm 26.6 × 3.3 mm | −100°C to +20°C | 4.4 e− @ 50 kHz | |
| 1024 × 255 | 26 µm 26.6 × 6.7 mm | −100°C to +20°C | 4.2 e− @ 50 kHz | |
| 1024 × 255 | 26 µm 26.6 × 6.7 mm | −100°C to +20°C | 5.4 e− @ 50 kHz | |
| 1024 × 255 | 26 µm 26.6 × 6.7 mm | −100°C to +20°C | 6.0 e− @ 50 kHz | |
| 2048 × 515 | 13.5 µm 27.6 × 6.9 mm | −100°C to +20°C | 3.5 e− @ 50 kHz | |
| 2048 × 515 | 13.5 µm 27.6 × 6.9 mm | −100°C to +20°C | 3.5 e− @ 50 kHz | |
| 2048 × 515 | 13.5 µm 27.6 × 6.9 mm | −100°C to +20°C | 3.5 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 spectroscopy 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 · 50 camera configurations

Deep-cooled, full-frame CCD spectroscopy for weak optical signals across UV, visible and near infrared.

Direct-detection CCD imaging 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.