DEXA: Radiation Safety Production of X-Rays |
Intro || Types || Production || Interaction || Attenuation || Biological Effects || Gas Detectors || Scintillation Counters || Protection Principles || Units || Practical || DEXA Theory || Dosimetry || References
The page contains the following sections:
The X-Ray Tube
Most (>99%) of the energy in the electron beam is converted to heat - the remainder producing X-rays through:
Kilovoltage: 25 - 150 kV
Tube current: 1 - 1,000 mA
Anode material: W commonly
[Mo in mammography]
The Ideal X-Ray Energy Spectrum
Maximum energy: controlled by the kilovoltage
Intensity: controlled by the mA
Ideal spectrum is filtered by XRT components
and by filters to remove low-energy X-rays from the beam
Also, K-edge filters.
Intro || Types || Production || Interaction || Attenuation || Biological Effects || Gas Detectors || Scintillation Counters || Protection Principles || Units || Practical || DEXA Theory || Dosimetry || References
Last Updated: 24 Jan '98