Wavelength Dispersive X-Ray Fluorescence Spectrometer (WDXRF Spectrometer)

X-Ray Fluorescence spectrometers (XRF) use high energy X-rays (or gamma rays) to excite fluorescent radiation or photons from a sample for elemental analysis. In wavelength dispersive x-ray fluorescence spectroscopy (WDXRF), photons emitted by the sample are separated or dispersed by diffraction before hitting the detector. This is accomplished by placing an analyzing crystal between the sample and the detector. Therefore, WDXRF spectrometers have better resolution than energy dispersive x-ray fluorescence spectrometers which do not contain an analyzing crystal. However, due to the increase in optical components, WDXRF spectrometers typical have a lower efficiency than EDXRF spectrometers and, hence, require a higher power x-ray tube (which can add to the cost of the instrument).

There are two types of WDXRF spectrometers: simultaneous and sequential. In simultaneous WDXRF spectrometers, multiple detectors placed at different angles are used to analyze multiple elements simultaneously. In sequential WDXRF Spectrometers, the crystal is turned while elements are analyzed sequentially. Sequential WDXRF spectrometers typically have better intensity, but take longer to record measurements. WDXRF is a nondestructive technique and has applications in many industries where elemental analysis is needed, such as geoscience, environmental analysis, food safety, and analyzing archeological artifacts.

Click here for Energy Dispersive XRF Spectrometers (EDXRF)
CompanyRigaku CorporationRigaku CorporationRigaku CorporationRigaku CorporationRigaku Corporation
ItemZSX Primus IV Tube-above WDXRF SpectrometerSupermini200 High-Powered Benchtop Wavelength Dispersive XRF SpectrometerZSX 400 Wavelength Dispersive X-ray Fluorescence SpectrometerZSX Primus III NEXT – High-Throughput/Affordable WDXRF SpectrometerZSX Primus IVi – High Power Sequential WDXRF Spectrometer
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Catalog NumberZSX Primus IVSupermini200ZSX 400ZSX Primus III NEXTZSX Primus IVi
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PrincipleWavelength Dispersive X-ray Fluorescence (WDXRF)Wavelength DispersiveWavelength Dispersive X-ray Fluorescence (WDXRF)Wavelength dispersiveInquire
X-Ray TubeEnd window Rh-anode, 3kW or 4 kW200 W (air-cooled)End window, Rh-anode, 3kW or 4 kW, 60kVEnd window type Rh target 3 kWInquire
Goniometer TypeInquireInquireInquireInquireInquire
Detector(s)SC Detector (heavy element), F-PC Detector (light element), 1/10 In-out automatic exchanger (Attenuator)Light elements: F-PC (gas flow proportional counter), heavy elements; and SC (scintillation counter)Heavy element detector - Scintillation counter (SC), Light element detector - Flow proportional counter (F-PC), Attenuator - In-out automatic exchanger (1/10)SC (Scintillation counter), F-PC (Gas flow proportional counter)
Optional: S-PC LE (Gas sealed proportional counter: does not require P-10 gas)
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Analysis Diameter0.5, 1, 10, 20, 30 and 35 mm44 mm (sample size)30 to 0.5 mmInquireInquire
DescriptionAs a tube-above sequential wavelength dispersive X-ray fluorescence spectrometer, the Rigaku ZSX Primus IV delivers rapid quantitative determination of major and minor atomic elements, from beryllium (Be) through uranium (U), in a wide variety of sample types — with minimal standards.

Features:
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The new Supermini200 has improved software capabilities as well as a better footprint. As the world's only high-power benchtop sequential wavelength dispersive X-ray fluorescence (WDXRF) spectrometer for elemental analysis of oxygen (O) through uranium (U) of almost any material, the Rigaku ... Read MoreRigaku's unique ZSX 400 sequential wavelength dispersive X-ray fluorescence (WDXRF) spectrometer was specifically designed to handle very large and/or heavy samples. Accepting samples up to 400 mm diameter, 50 mm thick and 30 kg weight, this system is ideal for analyzing sputtering targets, magnetic... Read MoreKey Features
  • High-end WDXRF – Ideal for industrial applications
  • High throughput – Obtain accurate results in minutes
  • Tube-above optics – Eliminates particulate contamination ensuring consistent, reliable results
  • Extended detection rage – Be to Cm
  • ZSX Guidance software – Increases usability
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