QUALITY ASSURANCE OF RADIOLOGICAL EQUIPMENT
- EMI/EMC testing is a critical step in bringing a new product to market. EMI/EMC testing involves the process of evaluating and measuring the electromagnetic interference (EMI) and electromagnetic compatibility (EMC) characteristics of biomedical devices or systems.
- EMI/EMC testing is a critical step in bringing a new product to market. EMI/EMC testing involves the process of evaluating and measuring the electromagnetic interference (EMI) and electromagnetic compatibility (EMC) characteristics of biomedical devices or systems.
- The following tests can be performed with an image quality phantom for general radiography;
- Highlight and Lowlight details
- An array of 5 & 10mm uniformly pitched, high contrast squares
- LP/mm (0.6 to 5.0 LP/mm)
- 6 x 11.0mm diameter low contrast details
- 10 x 0.5mm diameter high contrast details
1. Dynamic Range
6. Focal Spot Size
7. Noise / Uniformity
8. Artefacts
9. X-ray to Light Field Congruence
- It enables the following tests to be performed:
1. Geometric distortion
2. CT number (HU) measurement
3. Noise / Uniformity
4. Artefacts
5. MTF
6. Spatial resolution
7. Contrast resolution
8. Slice profile
- Used for Computed Tomography Dose Index (CTDI) measurement and to separate dose information for each.
- To measure radiation leakage and scatter around diagnostic X-ray and radiation therapy suites
- The following sensors are available to test the radiological device.
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1. R/F sensor: measuring all radiological parameters such as dose, dose rate, kVp, HVL, total filtration, exposure time, pulses, pulse rate and dose/pulse in radiography and fluoroscopy applications.
2. MAM sensor: measuring all radiological parameters such as dose, dose rate, kVp, HVL, exposure time, pulses, pulse rate and dose/pulse in Mammography machine.
3. CT sensor: measuring exposure time and dose rate waveforms in Computed Tomography.
4. Survey sensor: measuring leakage and scatter in diagnostic X-ray applications.
5. Light senor: measuring both luminance and illuminance