OPTION 1

X-rays are divided into four type depending on their wavelengths:

 

•            1-2 Å-Grenz or Super Soft X-rays, mainly used to treat superficial lesions and in crystallogy.

•            1-0.5Å Soft X-rays, mainly used in contact therapy.

•            0.5-0.1 Å-Medium X-rays, mainly used in diagnostic and superficial therapy.

•            0.1 Å-Hard X-rays, mainly used for deep X-ray therapy and for industrial roentgenography.

 

The other general uses of X-rays are:

•            Its properties of fluorescence is used in medicine for fluoroscopic examination and intensifying screens in extraoral radiography.

•            Radiography and monitoring film badges.

•            To sterilize commercial items in bulk.

Key Concepts:

Grenz rays:

A low-energy x-ray photon with an average wavelength of 2 A.U. (range from 1 to 3 A.U.); obtained with peak voltage of less than 10 kV. Grenz rays lie between ultraviolet and x-rays.