PHY4308 - Radiographic Testing

Wavelength of 10^-8 is part of the X-Ray

• True

• False

In radiology, ​______ are translated into EM radiation.

• photons
• electrons
• neutrons
• ions

___-series is located at the most innermost part of an atom.

Characteristic lines will appear on the Bramsstruhlung curve when __________

• voltage of the accelerated electron is bigger than certain energy shell of the target material

• the penumbra is very small on the film

• energy of photons is similar to energy of accelerated electrons

• the target material of the accelerated electons is changed

The following can be used to control the output radiation of X-ray machine EXCEPT

• X-ray filtration

• target material

• input current

Higher intensity of X-ray energy spectrum is due to ______

• smaller filament current

• higher biasing voltage

• target material size

• heat sink material type

Penumbra is part of umbra

• True

• False

Size of penumbra could be decreased by ___________________.

• decreasing distance between object and image plane

• decreasing effective focal size

• decreasing the distance between object and source targe

Radiation detector using ______ is portable.

• accelerated electrons

• uranium

Radiographic contrast can be obtained from

• light beam intensity

• fog density

• difference of photographic density