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      Tips and Guidelines for Buying an X-ray Generator

      Power supply generators for x-ray tubes, which deliver the necessary voltage and amperes for producing x-ray beams of varying characteristics. The power supply is controlled by the user, and settings are determined by a technician.The x-ray tube may be an integral part of the generator unit in some models.

      Tips for Buying an X-ray Generator

      1. Facilities should select power rating and timing capabilities based on the types of examinations to be performed and the operating technique factors required with the type of x-ray generator selected.

      2. Power setting is the main factor when dealing with these x-ray generator units.

      3. Low power x-ray generators are capable of the full range of x-ray exposures.

      4. Shorter exposure times can be used with higher power. With shorter exposure times, there is less chance of movement artifacts.

      5. A 50 kW-generator is sufficient if the generator is used predominantly for extremity and chest imaging.

      6. When large patients are expected, particularly in Radiographic/Fluoroscopic system applications, higher power generators are needed.

      7. If a heavy workload of abdominal imaging is expected, then an 80 kW generator should be considered.

      8. When choosing a Radiographic-Tomographic system unit, facilities should consider the secondary waveform type, timing capabilities, and compatibility with other system components.

      9. The secondary waveform type determines the efficiency of x-ray production, including the magnitude of ripple and the ratio of average to peak x-ray tube voltage.

      10. Secondary waveforms that are single-phase, full-wave rectified provide the least efficient production of x-rays, which results in longer radiographic exposure times and higher patient radiation exposure.

      11. Single-phase x-ray generators cause increased x-ray tube anode heating, and therefore restrict small focal spot examinations and reduce tube life.

      12. Three-phase x-ray generators allow higher mA exposures at shorter exposure times, reduce motion un-sharpness, and produce higher-quality radiographs for many examinations.

      13. Facilities should add power installation costs to the project budget if three-phase power service is not available at the planned location.

      14. A procedure using a three-phase or high frequency x-ray generator needs lower kVp and/or mAs than the same one using a single-phase x-ray generator. 15. Routine radiographic, angiographic, fluoroscopic, and tomographic procedures vary in their kVp and mAs requirements, so all features of Radiographic-Tomographic Systems and Radiographic/Fluoroscopic Systems must be taken into consideration.

      16. Putting the x-ray generator too far away from the x-ray tube may cause distortions in voltage waveforms and timing responses caused by capacitance in excessively long high-voltage cables.

      17. Facilities must select x-ray generator components for compatibility as an integrated system. It is specifically critical to choose compatible x-ray tubes and generators to fully utilize all features of both components.

      Questions for the Seller

      Before you purchase your X-ray Generator, we recommend you ask the seller the following questions:

      • How many High Tension outputs are in the generator?

      Tips and Guidelines for Buying an X-ray Generator

      Power supply generators for x-ray tubes, which deliver the necessary voltage and amperes for producing x-ray beams of varying characteristics. The power supply is controlled by the user, and settings are determined by a technician.The x-ray tube may be an integral part of the generator unit in some models.

      Tips for Buying an X-ray Generator

      1. Facilities should select power rating and timing capabilities based on the types of examinations to be performed and the operating technique factors required with the type of x-ray generator selected.

      2. Power setting is the main factor when dealing with these x-ray generator units.

      3. Low power x-ray generators are capable of the full range of x-ray exposures.

      4. Shorter exposure times can be used with higher power. With shorter exposure times, there is less chance of movement artifacts.

      5. A 50 kW-generator is sufficient if the generator is used predominantly for extremity and chest imaging.

      6. When large patients are expected, particularly in Radiographic/Fluoroscopic system applications, higher power generators are needed.

      7. If a heavy workload of abdominal imaging is expected, then an 80 kW generator should be considered.

      8. When choosing a Radiographic-Tomographic system unit, facilities should consider the secondary waveform type, timing capabilities, and compatibility with other system components.

      9. The secondary waveform type determines the efficiency of x-ray production, including the magnitude of ripple and the ratio of average to peak x-ray tube voltage.

      10. Secondary waveforms that are single-phase, full-wave rectified provide the least efficient production of x-rays, which results in longer radiographic exposure times and higher patient radiation exposure.

      11. Single-phase x-ray generators cause increased x-ray tube anode heating, and therefore restrict small focal spot examinations and reduce tube life.

      12. Three-phase x-ray generators allow higher mA exposures at shorter exposure times, reduce motion un-sharpness, and produce higher-quality radiographs for many examinations.

      13. Facilities should add power installation costs to the project budget if three-phase power service is not available at the planned location.

      14. A procedure using a three-phase or high frequency x-ray generator needs lower kVp and/or mAs than the same one using a single-phase x-ray generator. 15. Routine radiographic, angiographic, fluoroscopic, and tomographic procedures vary in their kVp and mAs requirements, so all features of Radiographic-Tomographic Systems and Radiographic/Fluoroscopic Systems must be taken into consideration.

      16. Putting the x-ray generator too far away from the x-ray tube may cause distortions in voltage waveforms and timing responses caused by capacitance in excessively long high-voltage cables.

      17. Facilities must select x-ray generator components for compatibility as an integrated system. It is specifically critical to choose compatible x-ray tubes and generators to fully utilize all features of both components.

      Questions for the Seller

      Before you purchase your X-ray Generator, we recommend you ask the seller the following questions:

      • How many High Tension outputs are in the generator?
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