X-ray fluorescence energy dispersive general purpose spectrometer BRA-135F
Technical data
| Range of determined elements | from 9F to 92U |
Range of determination without preconcentration, %
- for elements from Na to Mg
- for elements from Al to Cl
- for elements from K to U |
10-2
0.002
0.0005 |
| Range of determination with sample preconcentration depending on chemical element, % | 1.5*10-5 |
| Limit of the middle group elements detection in liquids, % | n*10-5 |
| Average time for 1 (one) sample analysis, sec | 100 |
| Energy resolution of MnKα line at the pulses counting rate up to 104 sec-1, max, eV | 145 |
| Maximum voltage of the X-ray tube, kV | 50 |
| Power of the X-ray tube, W | 10 |
| Cooling of the X-ray tube | air |
| Primary X-ray radiation filters | 5 |
Number of samples installed into sample changer, up to
changer #1 (Ø34 mm samples)
changer #2 (Ø34,36,40,44 mm samples) |
15
11 |
| Maximum size of substandard specimen, mm | 200х60 |
| Connection to Ethernet | Yes |
| Remote control | Yes |
| Overall dimensions of the instrument (L х W х H), mm | 700х410х400 |
| Weight of the instrument, kg | 65 |
| Power supply | 220 V, 50 Hz |
| Power consumption, VA | 500 |
Process diagram
Principle of Operation
Principle of spectrometer operation is based on the excitation of fluorescent radiation of atoms of material under examination by radiation coming from an X-ray tube. The fluorescence radiation from the specimen is selected by the semiconductor SDD detector where after being absorbed quanta of various energy are converted into electrical pulses with amplitudes being proportional to energy of these quanta. Pulse repetition frequency with a certain amplitude is proportional to chemical element concentration in the sample.