Handheld XRF Spectrometer

VRAY's Handheld XRF Spectrometer solutions, led by the advanced VR-H5, represent the pinnacle of portable elemental analysis. Designed for professionals needing precision on the go, the VR-H5 weighs an ultra-light 1.6Kg (with battery), ensuring effortless portability. Its intelligent battery system delivers up to 8 hours of continuous operation, perfect for extended fieldwork across a wide temperature range of -20℃ to 50℃.

At its core, the VR-H5 boasts exceptional 0.03% accuracy for 9999 gold, conducting rapid 30-second tests on solid, liquid, or powder samples. This precision is driven by a customized USA Si-Pin detector and an adjustable 50KV/200μA excitation source with versatile target options (Ag, Au, W, Rh). Its integrated T-shaped radiator efficiently dissipates heat, ensuring stable performance without downtime. Operated via an intuitive 4.3" industrial resistive touchscreen, the VR-H5 provides powerful, precise analytical capabilities, reflecting VRAY's commitment to delivering reliable, cutting-edge solutions.

Opting for a Handheld XRF Spectrometer like the VRAY VR-H5 offers significant advantages for various industries and professionals:

1. On-site Convenience: Perform immediate, accurate elemental analysis directly where it's needed, eliminating the need to transport samples to a lab. This saves time and resources.

2. Non-Destructive Testing: Analyze samples without causing any damage, preserving the integrity and value of precious items, artifacts, or sensitive materials.

3. Rapid Decision Making: Get results in seconds, allowing for quick decisions in fields like quality control, material sorting, or authenticity verification, preventing delays in operations.

4. Increased Efficiency: Streamline workflows by bringing the lab to the sample, reducing turnaround times for testing and accelerating processes.

5. Cost-Effectiveness: Reduce costs associated with traditional lab testing, such as sample preparation, shipping, and external lab fees. The upfront investment can quickly pay for itself through improved operational efficiency and fraud prevention.

6. Enhanced Fraud Prevention: Instantly verify the authenticity and purity of metals, helping to detect counterfeit goods, identify plating, and ensure compliance with quality standards.

7. Versatile Application: Adaptable to a wide array of sample types and environments, making it suitable for diverse industries from jewelry and recycling to manufacturing and geology.

A Handheld XRF Spectrometer (X-ray Fluorescence Spectrometer) is a sophisticated non-destructive analytical instrument that determines elemental composition by leveraging the fundamental interaction between X-rays and matter. It begins by directing a primary beam of high-energy X-rays, generated by an X-ray tube, at the sample.

When these primary X-rays strike an atom with sufficient energy, an electron from an inner orbital shell (typically K or L) can be ejected, creating a vacancy. To regain stability, an electron from a higher-energy outer shell immediately drops to fill this vacancy. As this electron transitions to a lower energy state, it emits a secondary X-ray photon. The energy of this emitted photon is unique and characteristic for each element, acting as its atomic "fingerprint." The spectrometer's detector (like VRAY's Customized Si-Pin or high-sensitivity SDD) captures and measures the energy and intensity of these fluorescent X-rays, identifying which elements are present (qualitative analysis) and their relative concentrations (quantitative analysis). This process is rapid and doesn't damage the sample.

The precision of XRF analysis is critical. VRAY's instruments, such as the VR-H5 (0.03% accuracy for 9999 gold) and VR-S7 (up to 0.01% for 9999 gold), are engineered for high accuracy. Several factors and practices contribute to maximizing this:

1. Advanced Detector Technology: Quality detectors like high-sensitivity SDD or Customized Si-Pin (as in VR-H5) offer superior energy resolution, allowing better separation of elemental peaks and precise quantification, even of trace elements.

2. Rigorous Calibration: Regular, precise calibration using certified reference materials is fundamental. VRAY emphasizes daily calibration to maintain alignment with known standards and compensate for minor drifts over time.

3. Optimized Excitation Source: The X-ray tube's performance is key. VRAY's adjustable tube pressure/flow and flexible target options (Ag, Au, W, Rh) allow for optimal excitation of specific elements, boosting their fluorescent signal and improving detection limits.

4. Sample Preparation: While XRF is non-destructive, a clean, flat, and homogenous sample surface is crucial. Removing dust, oils, or oxidation minimizes absorption and scattering effects that can distort signals.

5. Environmental Stability & Heat Management: Temperature fluctuations can affect detector performance. Maintaining a stable operating environment (e.g., 10℃-35℃ for benchtop and -20℃-50℃ for handheld models) is vital. VRAY's T-shaped radiator ensures efficient heat dissipation, reducing detector noise and maintaining long-term stability.

6. Stable Power Supply: Consistent power is essential for sensitive electronics and X-ray tube output. A stable power source or UPS prevents voltage fluctuations that can impact accuracy.

7. Precision Collimation: Finer collimators (e.g., ϕ1.5mm on the VR-S7 benchtop) can narrow the X-ray beam for more localized analysis, reducing interference and improving measurement specificity.