Always Imaging FineTec 160 RT Microfocus Rod-Anode X-ray Source

Overview

The Always Imaging FineTec 160 RT is a high-performance, open-type microfocus X-ray source engineered for industrial micro-computed tomography (micro-CT), real-time radiographic inspection, and high-resolution non-destructive testing (NDT). Built on a fully metallic, single-polarity electron-optical architecture, it employs a rod-anode configuration to enable extended focal track geometry while maintaining sub-micron focal spot sizes—typically ≤ 5 µm at rated power. Unlike conventional reflection-target microfocus tubes, the rod-anode design allows direct placement of samples in close proximity to the focal spot, maximizing geometric magnification and minimizing geometric unsharpness (U_g). This principle—governed by the relationship U_g = f × (M − 1), where *f* is focal spot size and *M* is magnification—enables consistent spatial resolution down to 1–2 µm under optimized imaging conditions. The system operates across four selectable high-voltage platforms (160, 225, 240, and 300 kV), supporting both low-Z material contrast imaging and high-penetration inspection of dense metallic assemblies, castings, and composite structures.

Key Features

• Interchangeable rod-anode and standard microfocus tube heads—enabling rapid reconfiguration between high-magnification lab CT and long-path industrial radiography
• Fully customizable rod-anode assemblies: length (up to 500 mm), diameter, and target material (e.g., tungsten, molybdenum, or copper) tailored to application-specific attenuation and spectral requirements
• Two-stage focusing option available, delivering enhanced electron beam control for improved focal spot stability at elevated tube currents and extended rod lengths
• Integrated water-cooling module (optional) ensures thermal stability during continuous operation at up to 80% of maximum rated power—critical for reproducible image quality in automated inspection lines
• Magnetic shielding kit (optional) suppresses external field interference, preserving focal spot integrity in environments with adjacent motors, transformers, or electromagnetic actuators
• Robust all-metal envelope construction eliminates glass-to-metal seal vulnerabilities, enhancing vacuum longevity and mechanical resilience in vibration-prone industrial settings

Sample Compatibility & Compliance

The FineTec 160 RT supports a broad range of sample geometries—from small electronic components (300 mm OD) and welded pressure vessels. Its modular rod-anode configuration accommodates axial scanning of cylindrical objects without rotation, eliminating motion artifacts common in conventional CT setups. The system complies with IEC 61331-1:2014 (X-ray tube safety), ISO 4037-1:2019 (reference radiation fields), and meets essential requirements of the EU Machinery Directive 2006/42/EC when integrated into certified micro-CT or NDT workstations. When deployed in regulated manufacturing environments, the source supports audit-ready documentation packages aligned with ISO 9001, AS9100, and NADCAP AC7101/AC7114 for aerospace and energy sector qualification.

Software & Data Management

While the FineTec 160 RT is a hardware-only source, it is designed for seamless integration with third-party acquisition platforms including GE phoenix|datos|x, Volume Graphics VGStudio MAX, and custom LabVIEW- or Python-based control stacks. Digital I/O interfaces (TTL-triggered exposure control, HV interlock feedback, temperature monitoring) support synchronization with rotary stages, linear translators, and flat-panel detectors. All operational parameters—including kV, mA, exposure time, and cooling status—are accessible via RS-485 or Ethernet/IP for logging into LIMS or MES systems. For GxP environments, optional firmware extensions provide 21 CFR Part 11-compliant electronic signatures, audit trails, and user-access role management when paired with validated host software.

Applications

• High-resolution internal inspection of weld seams, porosity, and lack-of-fusion in pipeline girth welds and heat exchanger tubing
• In-line CT metrology of additive-manufactured metal parts, verifying internal lattice integrity and dimensional conformance per ASME Y14.41
• Failure analysis of hermetically sealed microelectromechanical systems (MEMS) and power semiconductor modules
• Porosity and inclusion quantification in aluminum die-cast automotive components per ASTM E155 and ISO 10563
• Real-time dynamic radiography of fluid flow, valve actuation, and thermal expansion in functional prototypes

FAQ

What focal spot sizes are achievable at 300 kV operation?
At 300 kV and 0.5 mA, the standard rod-anode configuration achieves ≤ 5 µm focal spot size (FWHM, measured per ISO 10640:2020). With the two-stage focusing option, spot size remains ≤ 4 µm up to 0.8 mA.
Can the rod-anode be replaced in the field without breaking vacuum?
No—the rod-anode assembly is a sealed, factory-aligned subunit. Replacement requires return-to-factory service and full re-validation of focal spot metrology and HV insulation integrity.
Is this source compatible with pulsed X-ray imaging modes?
Yes—via external TTL triggering with minimum pulse width of 100 µs and repetition rate up to 1 kHz, subject to thermal derating per duty cycle.
Does Always Imaging provide beam filtration options?
Standard Be (1 mm) and Al (1–3 mm) filters are supplied; custom Cu/Ni composite filters can be integrated upon request for K-edge subtraction or dual-energy applications.
What is the typical warm-up stabilization time before achieving nominal resolution?
Thermal equilibrium is reached within 15 minutes after cold start at 225 kV/0.6 mA; focal spot drift remains <0.3 µm over 2-hour continuous operation under water-cooled conditions.