for superficial lesions, the electrons may be used for radiation therapy. the high energy photons and electrons are produced by a linear accelerator (linac).   many of electron fields need the shielding of normal or critical organs. the electron shields are usually lead slabs with few millimeter thickness which should be placed near the skin, less than 1 centimeter away from skin. in the inspec...

In “Nonasymptotic Analysis of Monte Carlo Tree Search,” D. Shah, Q. Xie, and Z. Xu consider the popular tree-based search strategy, Search (MCTS), in context infinite-horizon discounted Markov decision process. They show that MCTS with an appropriate polynomial rather than logarithmic bonus term indeed leads to desired convergence property. The authors derive results by establishing a concentra...

This paper presents a multilevel quasi-Monte Carlo method for interval analysis, as computationally efficient high-dimensional linear models. Interval analysis typically requires global optimization procedure to calculate the bounds on output side of computational model. The main issue such is that it numerous full-scale model evaluations. Even when simplified approaches vertex are applied, req...

introduction after the publication of task group number 43 dose calculation formalism by the american association of physicists in medicine (aapm), this method has been known as the most common dose calculation method in brachytherapy treatment planning. in this formalism, the water phantom is introduced as the reference dosimetry phantom, while the attenuation coefficient of the sources in the...

A Monte Carlo dispersion analysis has been completed on the X-33 software simulation. The simulation is based on a preliminary version of the software and is primarily used in an effort to define and refine how a Monte Carlo dispersion analysis would have been done on the final flight-ready version of the software. This report gives an overview of the processes used in the implementation of the...