How Lasers Work ampamp Their Applications Lasers have become an ... ... He called his device the ampquotmaser,ampquot which stood for Microwave Amplification by Stimulated Emission of Radiation. Townes had used ammonia gas as the material for ... (1926 Words -- Approx. 8 Pages)
Computed Tomography in Dentistry ... recent survey indicated that there is a fairly wide range of radiation doses used ... mean entrance exposure of 530 mrad for a posteroanterior or Townes view skull ... (1200 Words -- Approx. 5 Pages)