Titlebook: Clinical Radiotherapy Physics; Subramania Jayaraman,Lawrence H. Lanzl Book 2004Latest edition Springer-Verlag Berlin Heidelberg 2004 Charg

padding

Scope of Clinical Radiotherapy Physicsvoke a reaction among lay people. They may ask whether indeed ”physicist“ and not ”physician“ was meant. Next could come the query, what role does a physicist play in a clinic? The reply is that medical physicists function in those clinics that need their expertise to ensure proper patient care. In

发炎

Atoms, Molecules, and Matters could be split into components, each of which has its own distinct chemical behavior. These individual components were given the name ”elements.“ Groups of elements have been identified as alkali, halogens, and inert gases, with elements in each group behaving alike chemically. In 1816, Prout sugg

Junction

Propagation of Energy by Electromagnetic Waveser of energy is easily understood. It is less easy to understand how the energy coming from a radio transmitter is sensed by a radio receiver. The propagation of energy, in this case, is through electromagnetic waves that are invisible. The heat we feel when we place our hand near a hot oven is due

西瓜

加剧

Radioactive Decay Calculationswill decay and when. This is because radioactive decay is a random process. Any radionuclide may decay in any given time interval with a certain probability, but not with any certainty. We can only predict the averages for a whole group, without being specific about a particular nuclide. Furthermore

HEW

Collision and Radiation Loss in Charged-Particle Interactionsepends on the stopping power of the medium. A light particle such as an electron may follow a zig-zag, tortuous path, changing directions during several energy-diminishing encounters, as illustrated in Figure 6.1. The thickness of the medium needed for the entire energy of a particle to be absorbed

粗鄙的人

Pseudoephedrine

Conventional X-Ray Machinesed to high electric potentials. They used glass discharge tubes (Figure 8.1) which contained an anode and a cathode, and in which gas was maintained at very low pressures, of the order of 0.001 mmHg. Crookes found that, when very high voltages were applied between the electrodes, the gas turned dark

得罪人

optional