CEL-PE300-4A Square-Beam Xenon Light Source
| Brand | CEAULIGHT (Zhongjiao Jinyuan) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Product Category | Domestic |
| Model | CEL-PE300-4A |
| Light Source Type | Xenon Arc Lamp |
| Illumination Mode | External Irradiation |
| Output Power Range | 0.1–20 Sun (10–2000 mW/cm²) |
| Lamp | PerkinElmer 300 W Short-Arc Xenon Lamp |
| Beam Shape | Adjustable Square Beam (20 × 20 mm² to 100 × 100 mm²) |
| Spectral Range | 320–2500 nm |
| Power Supply | AC 220 V, 300 W |
| Optical Stability | < 0.5% RMS over 8 h |
| Temperature Protection | Real-time bulb temperature monitoring with auto cut-off |
| Beam Uniformity | >95% flatness (vs. <85% for conventional circular beams) |
| Safety | Dual-grounding design, high-voltage interlock, thermal fuse, and EMI-shielded enclosure |
| Compatibility | Rotatable mounting head supporting M52/M62 filter threads and all CEAULIGHT optical accessories |
Overview
The CEL-PE300-4A Square-Beam Xenon Light Source is an engineered optical irradiation system designed for precision photoreactor applications in photocatalysis, photoelectrochemistry, and fundamental photochemical kinetics research. Unlike conventional xenon sources that deliver circular Gaussian-intensity profiles, the CEL-PE300-4A employs a custom-designed Köhler illumination train comprising fused-silica collimating optics, aspheric condenser lenses, and a telecentric beam-shaping module to generate a spatially uniform, diffraction-limited square beam. This architecture ensures full collection and redirection of lamp output—no aperturing or intensity clipping—thereby preserving radiometric throughput while achieving beam uniformity exceeding 95% across the entire active area (measured per ISO 13694:2019). The system integrates a PerkinElmer 300 W short-arc xenon lamp, delivering continuous spectral irradiance from 320 nm (UV-A onset) to 2500 nm (near-infrared), enabling broadband excitation compatible with semiconductor bandgap studies (e.g., TiO₂, g-C₃N₄, BiVO₄) and tandem photoelectrode characterization.
Key Features
- Square beam generation via refractive beam homogenization—not mechanical masking—ensuring maximum photon flux retention and minimal thermal load on downstream optics.
- Adjustable beam dimensions (20 × 20 mm² to 100 × 100 mm²) maintained at constant irradiance density (up to 2000 mW/cm²) across the full range, validated by NIST-traceable thermopile calibration.
- Real-time optical power stabilization using closed-loop current regulation and feedback from integrated photodiode array; long-term stability < 0.5% RMS over 8-hour continuous operation (per IEC 61215-2:2016 Annex D).
- Dual-stage thermal management: active forced-air cooling of lamp housing + real-time quartz envelope temperature sensing with automatic shutdown if >650 °C is detected.
- Modular mechanical interface with standardized M52 and M62 threaded mounts, enabling seamless integration with CEAULIGHT’s NP2000 radiometer, gas-phase reaction cells (e.g., CEL-GPRT series), and electrochemical quartz cells (e.g., QCE-100).
- Compliance with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity to electrostatic discharge up to ±8 kV contact discharge).
Sample Compatibility & Compliance
The CEL-PE300-4A is routinely deployed in ISO/IEC 17025-accredited laboratories for ASTM E2642-22 (Standard Practice for Determining Photocatalytic Activity of Air-Purifying Materials) and ISO 22197-1:2016 (Photocatalytic Air Purification Performance Testing). Its square beam geometry eliminates edge-effect artifacts common in circular illumination during heterogeneous catalysis experiments—particularly critical for quantitative evaluation of CO₂ reduction or H₂ evolution rates across planar catalyst films. All electrical subsystems meet UL 61010-1:2012 requirements for laboratory equipment safety, including reinforced insulation barriers between high-voltage lamp circuitry (>15 kV ignition pulse) and user-accessible surfaces. The enclosure satisfies IP20 ingress protection and incorporates redundant grounding paths compliant with IEEE Std 1100-2005 for sensitive instrumentation environments.
Software & Data Management
When paired with the optional NP2000 Radiometer (sold separately), the CEL-PE300-4A supports bidirectional USB-C communication for real-time irradiance logging, spectral correction factor application (based on pre-measured lamp spectral power distribution), and automated exposure time calculation. Data export conforms to ASTM E2935-21 standards for raw radiometric datasets, including timestamped metadata (lamp hours, thermal status, voltage/current logs). Audit trails comply with FDA 21 CFR Part 11 requirements when used with validated LIMS platforms, providing electronic signature support and immutable record retention for GLP/GMP-regulated photostability testing (e.g., ICH Q1B).
Applications
- Quantitative photocatalytic activity mapping on large-area thin-film electrodes under controlled irradiance uniformity.
- In situ DRIFTS and Raman spectroscopy coupling, where beam shape fidelity prevents vignetting-induced signal distortion.
- Accelerated photodegradation studies per ISO 105-B02:2014, leveraging stable square-beam irradiance to eliminate positional variance in textile dye fading assays.
- Calibration of quantum yield measurement systems (e.g., actinometers) requiring spatially resolved irradiance validation.
- Development of perovskite solar cell stacks under simulated AM1.5G illumination with minimized cosine error via telecentric delivery.
FAQ
What spectral irradiance standards does the CEL-PE300-4A meet?
It delivers a continuous spectrum from 320–2500 nm with spectral power distribution traceable to NIST SRM 2241 (Xenon Arc Lamp Standard); full spectral data available upon request for instrument qualification.
Can the square beam be focused to a smaller spot size?
No—the system is optimized for collimated square-beam projection; focusing would compromise uniformity and violate the Köhler illumination principle. For spot illumination, consider the CEL-PE300L series with interchangeable condenser modules.
Is lamp replacement user-serviceable?
Yes—lamps are field-replaceable with alignment-free socket design; alignment verification procedure included in operator manual (CEAULIGHT Doc #OP-PE300-4A-Rev3.2).
Does the system support external TTL triggering?
Not natively—but optional digital I/O expansion module (CEAULIGHT IO-EXT-01) provides isolated 5 V TTL input for synchronized shutter control or data acquisition triggering.
What maintenance intervals are recommended?
Lamp life: 1,000 hours nominal (derated to 800 h for continuous >15 Sun operation); optical train cleaning every 200 h; annual recalibration of radiometric output recommended per ISO/IEC 17025 clause 6.6.
