The current trend in the high performance computing shows a dramatic increase in the number of cores on the shared memory compute nodes. Algorithms, especially those related to linear algebra, need to be adapted to these new computer architectures in order to be efficient. PASTIX* is a sparse parallel direct solver, that incorporates a dynamic scheduler for strongly hierarchical modern architec...

Introduction: In recent decades, several Monte Carlo codes have been introduced for research and medical applications. These methods provide both accurate and detailed calculation of particle transport from linear accelerators. The main drawback of Monte Carlo techniques is the extremely long computing time that is required in order to obtain a dose distribution with good statistical accuracy. ...

Successful application of external photon beam therapy in oncology requires that the dose delivered by a medical linear accelerator and distributed within patient’s body is accurately calculated. Monte Carlo simulation currently most accurate method for this purpose but computationally too extensive routine clinical application. A very elaborate time-consuming part such generation full set (pha...

The installation for sterilization of disposal medical goods based on the ILU electron accelerators Are described. The industrial installation is running where the syringes are sterilized in consumer packs directly by the electron beam having energy of 2.6 MeV. The different irradiation technologies for immobilization of enzymes, production of medical preparations and gels for medical and techn...

The International Atomic Energy Agency Technical Reports Series-398 code of practice for dosimetry recommends measuring photon percentage depth dose (PDD) curves with parallel-plate chambers. This code of practice was published before flattening filter-free (FFF) beams were widely used in clinical linear accelerators. The choice of detector for PDD measurements needs to be reassessed for FFF be...

PERSONNEL HAZARDS FROM MEDICAL ELECTRON ACCELERATOR PHOTONEUTRONS" R. C. McCall, T. M. Jenkins, R. A. Shore and P. D. LaRiviere+ Stanford Linear Accelerator Center, CA, U.S.A. and Varian Associates? INTRODUCTION For medical accelerators, neutron penetration through the room entry door is the major personnel hazard. Most therapy accelerator rooms are designed with at least a rudimentary maze to ...