Brian Nett, PhD

Educator, How Radiology Works ; Principal Scientist, GE Healthcare ; Adjunct Assistant Professor, University of Wisconsin Madison.

x rayGeneration 400

X-ray Generation, pictorial Guide [Bremsstrahlung, Characteristic]

Physics, CT, X-Ray

X-ray tubes used in diagnostic X-ray exams all use the same physical principles including: thermionic emission (boiling off electrons), accelerating electrons by a kiloVoltage potential (kVp), and two physical interactions contribute to x-ray generation: bremstraalung (braking radiation), and characteristic radiation (peaks in energy spectrum). The output x-ray distribution as a function of energy is termed […]

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ctGenerations 400

Animated CT Generations [1st, 2nd, 3rd, 4th, 5th Gen CT] for Radiologic Technologists

Physics, CT

CT scanning prototypes were developed in the late 1960s and this post describes the stages of technological development for CT scanners (Generations 1-5). After demonstrating the differences between these generations of scanner we describe how the 3rd generation became the dominant architecture and discuss the common projection geometries of parallel beam, fan beam and cone

Animated CT Generations [1st, 2nd, 3rd, 4th, 5th Gen CT] for Radiologic Technologists Read More »

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