Wizerunek prezydenta elekta Andrzeja Dudy w polskich tygodnikach katolickich „Gość Niedzielny” i „Niedziela”

Graded Radical W Type Lie Algebras I

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his study was carried out to determine the importance of type 2 Diabetes mellitus as a risk factor for osteoporosis in postmenopausal women. Materials and Methods: This study was conducted in 2004 on 40 diabetic and 40 healthy postmenopausal women attending the endocrine clinics in Zanjan. These two groups were matched in terms of age, length of their menopausal period and body mass index. Seru...

Dosimetric characterization of Elekta stereotactic cones

PURPOSE Dosimetry of small fields defined by stereotactic cones remains a challenging task. In this work, we report the results of commissioning measurements for the new Elekta stereotactic conical collimator system attached to the Elekta VersaHD linac and present the comparison between the measured and Monte Carlo (MC) calculated data for the 6 MV FFF beam. In addition, relative output factor ...

Commissioning an Elekta Versa HD linear accelerator

The purpose of this study is to report the dosimetric aspects of commissioning performed on an Elekta Versa HD linear accelerator (linac) with high-dose-rate flattening filter-free (FFF) photon modes and electron modes. Acceptance and commissioning was performed on the Elekta Versa HD linac with five photon energies (6 MV, 10 MV, 18 MV, 6 MV FFF, 10 MV FFF), four electron energies (6 MeV, 9MeV,...

VMAT testing for an Elekta accelerator

Volumetric-modulated arc therapy (VMAT) has been shown to be able to deliver plans equivalent to intensity-modulated radiation therapy (IMRT) in a fraction of the treatment time. This improvement is important for patient immobilization/localization compliance due to comfort and treatment duration, as well as patient throughput. Previous authors have suggested commissioning methods for this moda...