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Energy Dispersion X-ray Fluorescence Spectrometer
DW-NP-5010
Working principle
The original X-ray produced by X-ray tube and high voltage is irradiated on the sample after being properly filtered by the optical filter. The characteristic X-ray (called X-ray fluorescence) of the elements contained in the sample is stimulated. X-ray fluorescence spectra were obtained by using X-ray detectors with high energy resolution. Different elements formed different spectral peaks on the spectra.The strength of the spectral peak is directly proportional to the content of elements in the sample. The energy spectrum detected by the detector is analyzed by the computer. The types of elements contained in the sample are qualitatively analyzed by the position and shape of the spectral peak.
Main component and technical parameters
1. Si(PIN) or SDD detector
The resolution of detector is one of the main indexes to evaluate the performance of energy dispersive XRF spectrometer.
Resolution< 145eV (The lower the resolution, the higher the sensitivity.)
Counting rate> 1000/S
Crystal area> 15mm2
Beryllium window thickness = 0.025mm
Detector power< 1.2W
2. Multi-channel analyzer
Number of channels: 2048 channels
3 Power controller
System power control: +5 VDC at 250 mA (1.2 W)
Constant cooling control: 400 VDC
4. X ray tube
The X-ray tube, specially treated with embedded lead inside is shielded in full range, leaving only the side window for the x ray outlet. The canned insulating oil is used for high voltage insulation and cooling, 0.005 inch Beryllium window, rated consumption power 50W, rated power 50kV. Designed service life >15000h.
5. High voltage generator
Input: 85~265VAC,47~63Hz,Power factor correction.
1kV~5kVcomply to UL85~250VAC input standard
Voltage variation: 0.01% of output voltage from no load to full load
Current variation: 0~rated power, 0.01% of output current
Ripple: Peak - peak of output voltage 0.25%
Temperature variation: voltage or current setting, 0.01%/oC
Stability: 0.05%/8h after warming-up for half an hour
6. Automatic filter conversion system
Filters are automatically selected and converted(filter function:The energy spectrum component of the excitation line can be improved to suppress the strong X-ray fluorescence of high content components and improve the measurement accuracy of the elements to be measured.)
7. Radiation shielded system
Ø Newly designed and specially treatedX-ray tube with low-radiation
Ø Fully enclosed lead plate double shield design
Ø Automatic filtering device for lead plate
Ø X - ray interrupters in case of sample unexpected cover opening
Ø Delay testing and X-ray warning system
8. The detection limit of harmful elements Cd, Pb, Cr, Hg and Br is restricted according to ROHS instruction
Detection limit (Cd,Pb,Cr,Hg,Br): 2ppm
9. Powerful analysis software workstation
One-touch operation software, simple and easy to use, user does not need professional knowledge.
Ergonomic human-machine interface
Operators do not need to set various test parameters, powerful customized report function..
Test data is automatically stored with historical query function
The most advanced qualitative and quantitative analysis method.
Dozens of elements can be analyzed simultaneously.
10. Technical parameter
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Model |
DW-NP-5010A |
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Analysis principle |
Energy dispersive X-ray fluorescence analysis |
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Element measuring range |
Any element from Na(11)-U(92) |
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Min. measuring limit |
Cd/Hg/Br/Cr/Pb≤2 ppm |
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Sample shape |
Arbitrary size, any irregular shape |
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Sample type |
Plastic/metal/film/powder/liquid etc |
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X ray tube |
Target material |
Mo |
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Tube voltage |
5-50KV |
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Tube current |
1-1000uA |
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Sample exposure diameter |
2, 5, 8mm |
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Detector |
Si-PIN or SDD detector, high speed pulse height analysis system |
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High voltage generator |
Special HV generator for X fluorescence |
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ADC |
2048 channels |
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Filter |
6 filters are automatically selected and converted. |
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Sample observation |
200×color CCDcamera |
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Analysis software |
Patented software products, free upgrade for life |
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Analysis method |
Theoretical α coefficient method,basic parameter method, empirical coefficient method |
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Analysis time |
30-900seconds, adjustable |
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Operating system software |
WINDOWS XP |
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Dataprocessing system |
Host |
PC business model |
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CPU |
≥2.8G |
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Memory |
≥2g |
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CD-ROM |
8xDVD |
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Hard disk |
≥500G |
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Display |
22’’ or 24’’ LCD display |
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Working environment |
Temperature 10-35C,humidity 30-70%RH |
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