SARADHA SCAN CENTER

Tiruvannamalai Raod , Gingee

X-Ray Introduction :

The term X-Ray is derived from X-radiation. It is form of electromagnetic radiation. It has wavelength longer compare to Gamma rays and shorter compare to UV rays. It has following characteristics.

• Frequency range : 30 Petahertz to 30 exahertz ( i.e. 3 x 1016 to 3 x 1019 )

• Wavelength range : 0.01 to 10 nanometers

• Energy range : 100 eV to 100 KeV

Based on energy levels there are two types of X-rays viz. hard X-rays and soft X-rays. X-rays having higher photon energies are known as hard X-rays while the one having lower energies are known as soft X-rays.

X-ray is one of the modern imaging techniques including ultrasound, CT scan and MRI which shows structure inside the human body.

Advantages of X-Ray

Following are the advantages of X-Ray:

➨ It is cheaper and simple technique.

➨ It has lower radiation compare to CT scan.

➨ X-rays are not absorbed very much by air, hence specimen need not be in an evacuated chamber.

➨ It helps to diagnose tumours easily without the need of surgery.

➨ X-rays are widely used by radiologists to identify cracks, for infections, to identify level of injury, and to identify abnormal bones.

➨ It helps to locate alien objects inside or around bones.

Conclusion :

Though X-rays are not 100% safe, they are very useful for diagnosis if used in safest and controlled environments as much as possible.