Adopting the latest XRF Technology on the market today Skyray sold thousands XRF Spectrometers worldwide. Skyray Instruments hold over 50 patents in X-Ray Fluoresence and Chemical Analysis Instrumentation.With over 20 years of experience in X-Ray Fluoresce and Analytical Instrumentation we continue to innovate and provide our customers with low-cost, user-friendly and reliable XRF Instruments

SI-PIN and Silicon Drift XRF Detectors

Si-Pin Detectors used in Skyray Instruments XRF Spectrometers consist of high performance thermoelectrically cooled Si-Pin X-ray detector and preamplifier. Utilizing 500 um Si-PIN photodiode with 0.5 mil Be window, SI-PIN detector achieves energy resolution from 145 to 200 eV FWHM and count rates below 30 kcps.
Si-Pin Detector features moderate energy resolution with moderate count rates best suitable for Desktop systems....

SDD Detectors used in Skyray Instruments XRF Spectrometers consist of thermoelectrically cooled solid-state silicon drift detector (SDD) and preamplifier. SSD Detectors provide a resolution of 125 eV FWHM at the Mn Kα line (electronic noise of 4.5 electrons rms), a peak to background of 20,000:1, an output count rate over 500 kcps, and can detect X-rays down to the Be Kα line (110 eV). It has a 25 mm2 active area and is 500 μm thick and has a 0.5 mil Be window for good efficiency above 2 keV.
SDD features small size, best energy resolution, high count rates, and lowest X-ray energies...

Fast SDD XRF Detector

FAST SDD uses a complementary metal-oxide-semiconductor (CMOS) preamplifier and replaces the JFET with a metal-oxide-semiconductor field-effect transistor (MOSFET). This significantly reduces capacitance, providing much lower series noise and yielding improved resolution at very short peaking times.

The FAST SDD® uses the same detector but with a preamplifier giving lower noise at short peaking times.Improved (lower) resolution enables isolation/separation of fluorescent X-rays with close energy values where peaks would otherwise overlap, permitting users better identification all of the elements in their sample(s). Short peaking times also yield significant improvements in count rates; more counts provide better statistics..

X-ray Tube Specifications

High Voltage Unit

Skyray XRF Spectrometers feature Spellman's ultra-compact X-Ray High Voltage generator to power our cathode X-Ray tubes. Featuring a 0 to 50kV/65kV high voltage output @ 2mA limited to 50, 65 or 75 Watts coupled with proprietary encapsulation technology. High Voltage Power Supply uses closed loop filament control circuitry providing highly regulated beam current. The ground referenced low noise dc filament supply operates between 0.3 and 3.5 amps, offering tight regulation, high stability and low ripple.

Input voltage and current: Voltage:+24Vdc±10%, current<4.0A.
Output voltage and current: Voltage: 0 to 50 kV ; Current: 0 to 2 mA, Max. Power:75W
Working temperature: 0°C to +50°C
Temperature coefficient: 0.01% per °C
Stability: 0.05% per 8 hours (After preheating 30 minutes).


Skyray Instruments specializes in the R&D, manufacturing and sales of analytical and measuring instruments in Spectroscopy, Chromatography and Mass Spectroscopy fields. Our Products include X-ray Fluorescence Spectrometry, Atomic Absorption Spectrometry, Gas Chromatography, Inductively Coupled Plasma Spectrometry, Mass Spectrometry and many others. With advanced research and development team Skyray has been providing customers around the world with reliable and affordable Scientific Instruments for more than 20 years