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.
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Energy Dispersive XRF Spectrometers (EDXRF)
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Rigaku Americas Corporation
- End window, Rh-anode, 4kw, 60 kv
- Scintillation counter (SC), Sealed proportioonal counter (S-PC), Flow proportional counter (F-PC)
- Inquire
Rigaku Americas Corporation
- 200 W (air-cooled)
- Light elements: F-PC (gas flow proportional counter), heavy elements; and SC (scintillation counter)
- 44 mm (sample size)
Rigaku Americas Corporation
- End window, Rh-anode, 3kW or 4 kW, 60kV
- Heavy element detector - Scintillation counter (SC), Light element detector - Flow proportional counter (F-PC), Attenuator - In-out automatic exchanger (1/10)
- 30 to 0.5 mm
Rigaku Americas Corporation
- End window type Rh target 3 kW
- SC (Scintillation counter), F-PC (Gas flow proportional counter)
Optional: S-PC LE (Gas sealed proportional counter: does not require P-10 gas) - Inquire
Rigaku Americas Corporation
- End window Rh-anode, 3kW or 4 kW
- SC Detector (heavy element), F-PC Detector (light element), 1/10 In-out automatic exchanger (Attenuator)
- 0.5, 1, 10, 20, 30 and 35 mm
Rigaku Americas Corporation
Select up to 5 products from above to compare or request more information.
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