ZOLIX X-Ray Bent-Crystal Spectrometer

Overview

The ZOLIX X-Ray Bent-Crystal Spectrometer is a high-precision wavelength-dispersive spectrometer engineered for high-resolution X-ray spectral analysis in extreme ultraviolet (EUV) to hard X-ray regimes. It operates on the fundamental principle of Bragg diffraction from curved crystalline optics—leveraging the lattice periodicity of single-crystal materials (e.g., quartz, silicon, or mica) bent into spherical, cylindrical, or logarithmic spiral geometries. Unlike flat crystal spectrometers, which suffer from low collection efficiency and strong source-size–induced resolution degradation, bent-crystal configurations enable intrinsic focusing: diffracted X-rays converge onto a two-dimensional detection plane without requiring slits or auxiliary focusing optics. This architecture delivers simultaneous spectral and spatial resolution—critical for time-resolved plasma diagnostics, where both line centroid (Doppler shift) and line width (Doppler broadening) must be extracted from transient emission features. The system is optimized for operation in vacuum environments typical of tokamak edge and core plasma diagnostics, inertial confinement fusion (ICF) experiments, and laboratory-scale high-energy-density physics (HEDP) platforms.

Key Features

• Optimized bent-crystal optics: configurable curvature (spherical, Johann, Johansson, von Hamos, or logarithmic spiral) matched to target Bragg angle and spectral range
• Monolithic or segmented crystal substrates with high structural homogeneity and thermal stability under pulsed X-ray loading
• Modular optical bench design supporting alignment-free integration with vacuum-compatible X-ray detectors
• No slit requirement—enables high photon throughput while preserving intrinsic spectral resolution
• Compatible with both reflection-mode and transmission-mode crystal geometries
• Support for multi-crystal assemblies to extend coverage across soft X-ray (0.1–2 nm) and hard X-ray (0.01–0.5 nm) bands

Sample Compatibility & Compliance

The spectrometer is designed for non-contact, non-destructive analysis of X-ray-emitting sources—including laser-produced plasmas, Z-pinch discharges, tokamak edge radiation, and synchrotron beamlines. It complies with standard vacuum interface protocols (CF-63/CF-100 flanges) and meets mechanical and thermal specifications required for integration into magnetic confinement fusion facilities (e.g., EAST, HL-2M, JET). All optical components adhere to ISO 10110 surface quality standards; crystal curvature tolerances are maintained within ±0.5% of nominal radius. The system supports GLP-compliant operation when paired with detectors featuring audit-trail-enabled firmware (e.g., Andor iKon-L or Dectris PILATUS3 xCdTe), and data acquisition workflows may be configured to satisfy FDA 21 CFR Part 11 requirements for electronic records and signatures in regulated research environments.

Software & Data Management

ZOLIX provides a dedicated spectral calibration and analysis suite compatible with Windows/Linux platforms. The software performs automatic peak identification using reference databases (NIST X-ray Transition Energies, XAAMDI), applies geometric distortion correction for curved detector planes, and computes quantitative Doppler parameters via least-squares fitting of line profiles. Raw frame data are stored in HDF5 format with embedded metadata (crystal d-spacing, bending radius, incidence angle, detector gain, exposure time). Export options include ASCII, CSV, and CDF for interoperability with MATLAB, Python (SciPy/NumPy), and IDL-based plasma analysis pipelines. Remote control via TCP/IP or RS-232 enables synchronization with pulse generators, delay generators, and fast-gated detectors in time-resolved experiments.

Applications

• Plasma ion temperature and toroidal rotation velocity measurement via Doppler-broadened and Doppler-shifted impurity lines (e.g., He-like Ar XVII, Li-like Fe XXV)
• Time-resolved spectroscopy of laser-driven warm dense matter and shock-compressed samples
• Diagnostic of runaway electron bremsstrahlung spectra in tokamak disruptions
• High-resolution elemental mapping in scanning transmission X-ray microscopy (STXM) setups
• Calibration traceability for X-ray free-electron laser (XFEL) photon energy monitors
• Industrial inspection of microstructure-induced X-ray fluorescence in aerospace alloys and nuclear fuel cladding

FAQ

What crystal materials are supported for custom wavelength ranges?

Standard options include Si(111), Si(220), Quartz(1011), PET(002), and InSb(111); custom crystals (e.g., KAP, RAP) can be integrated upon request.

Is vacuum compatibility mandatory for operation?

Yes—the spectrometer requires UHV/XHV conditions (≤1×10⁻⁶ Pa) for optimal signal-to-noise ratio below 1 keV; optional differential pumping stages support operation down to atmospheric pressure for hard X-ray applications above 10 keV.

Can the system be synchronized with ultrafast lasers or RF heating pulses?

Absolutely—hardware trigger inputs support sub-nanosecond jitter synchronization with external pulse sources, enabling pump-probe measurements with temporal resolution limited only by detector gating capability.

Does ZOLIX provide calibration certificates traceable to NIST standards?

Yes—each delivered system includes a factory calibration report with certified d-spacing values, angular alignment verification, and resolution validation using certified X-ray line sources (e.g., Cu Kα, Mo Kα).

What level of technical support is available post-installation?

ZOLIX offers remote commissioning, on-site alignment assistance (optional), and annual maintenance contracts including crystal re-characterization, vacuum integrity testing, and software updates.