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  • GEIGER MULAR COUNTER
      Geiger counter is a device which is used to detect and measure particles in the ionized gases. It is widely used in applications like radi...
  • (no title)
      Why laser action cannot occur without population inversion between atomic levels? Population inversion is the state in which the number of...
  • Cavity Theory
      Cavity theory is the basis of operation for ionization chambers used in reference dosimetry. Cavity theory relates measured dose in a cavi...