MCNP evaluation of the effect of chest wall thickness, tissue composition, and photon energy on the quantity Muscle-Equivalent-Chest-Wall-Thickness
نویسندگان
چکیده
The measurement of radioactivity deposited in the lung is often performed with an array of germanium detectors placed over the chest of the individual. The detector array size can be from four to eight detectors depending on the size of the germanium detector and Dewar assembly. Typically, large area diameter germanium detectors (70 mm diameter) consist of four detectors, and the larger arrays consist of smaller diameter detectors (50 mm diameter).
منابع مشابه
Lung counting: a function to fit counting efficiency of a lung counting germanium detector array to muscle-equivalent-chest-wall-thickness and photon energy using a realistic torso phantom.
A function has been developed that will fit counting efficiency to chest wall thickness, adipose content of the chest wall, and photon energy. The adipose content of the chest wall is removed as a variable by use of the derived quantity: muscle equivalent chest wall thickness. The function has been tested on experimental data sets obtained from the LLNL and JAERI torso phantoms using a variety ...
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