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X-Ray Tube System for Portable XRF |
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Complete 45 kVp/50µA system includes
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Features
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Applications
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ECLIPSE-IV is a self-contained miniature X-ray tube system, which includes the X-ray tube, the power supply and the control electronics. It is designed to replace radioisotopes in X-ray fluorescence analysis applications.
ECLIPSE-IV has been designed to simplify the XRF process by providing grounded anode, variable current and voltage, and ease of operation. It features a 45 kV/50 µA power supply, a rhodium (Rh) transmission target, and a beryllium end window.
To further simplify the use of ECLIPSE-IV, a portable Controller is provided, powered from 80 - 240 V AC. The Controller generates all the voltages needed to operate the x-ray tube and provides both voltage (kV) and current (µA) display and control. A flashing red LED and a beeper warns the user when x-rays are present.
Figure 1. Eclipse-IV output spectrum at 45 kV.
ECLIPSE-IV is a trademark of Oxford Instruments.
| Anode current | 50 µA Max (2.25 W max) |
| Anode (target) voltage | Ground |
| Approximate Dose Rate | 3,000 mR/Hr at 50 in. (30 keV, 100 µA) |
| Approximate Flux | 300,000 cps at 40 cm through 1 mm diameter collimator (30 keV, 100 µA) |
| Cathode voltage | 5 to -45 kV |
| Input power | 15 V DC |
| kV control | 0 - 2.5 V DC |
| µA control | 0 - 2.5 V DC |
| Current stability | 1% for 5 µA < I < 10 µA 0.5% for I > 10 µA |
| Target | Rh |
| Anode thickness | 2.3 µm of Rh |
| Focal spot size | 1.5 mm nominal |
| Be window | 250 µm |
| Cone angle | 130 degrees |
| Cathode type | W filament |
| Dimensions | 6.6" x 1.5" |
| Weight | 0.64 lbs (300 grams) |
| Maximum operating temperature | 40 °C (104 °F) |
Figure 2. Bracketed dimensions in mm.
The ECLIPSE-IV Is intended to generate x-ray radiation during normal operation. The ECLIPSE-IV has been designed to focus radiation in the designated output direction, however radiation in other directions is possible and should be addressed with shielding and/or monitoring in the final application.
This device produces X-Rays when energized. To be operated only by qualified personnel.
Figure 3. Complete XRF system.
Revised March 3, 2008