Introduction: In clinical electron beams, most of bremsstrahlung radiation is produced by various linac head structures. This bremsstrahlung radiation dose is influenced by the geometry and construction of every component of the linac treatment head structures. Thus, it can be expected that the amount of the contaminated photon dose due to bremsstrahlung radiation varies among different linacs,...

Project Acronym : X-act Project Start Date : 1st October, 2012 Consortium : UNIVERSITY OF PATRAS (LMS) Project Coordinator COMAU SPA (COMAU) SIEMENS INDUSTRY SOFTWARE SAS (SIEMENS-PLM) FUNDACION TEKNIKER (TEKNIKER) FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V (F-IPK) TOFAS TURK OTOMOBIL FABRIKASI ANONIM SIRKETI (TOFAS) ALFA HOGAR S.L. (ALFA) PILZ INDUSTRIEELEKTRONIK SL (...

This planning study was performed to compare stereotactic linac based radiosurgery of Arteriovenous Malformations (AVM) with current Helical Tomotherapy (HT) and future HT techniques. For 10 patients with AVM, dose distributions and treatment times of "regular" HT delivery (Reg 2.5/1/0.6 cm field width), Running-Start-Stop Treatment (RSS 5/2.5 cm), Axial Mode (Axial 5 cm) and Dynamic Jaw/Dynami...

After extraction, the damping ring (DR) bunch length is eom@essed in the RTL (Ring-To-Linac) transport line to achieve the desired linac bunch length. For this, an energy spread is induced proportional to the DR bunch length, producing large, aperture filling, horizontal beam sizes in the dispersive regions of the RTL. There, nonlinear magnetic fields and wakefields cause higher order dispersio...

Grant Agreement No : 314355 Project Acronym : X-act Project Start Date : 1st October, 2012 Consortium : UNIVERSITY OF PATRAS (LMS) Project Coordinator COMAU SPA (COMAU) SIEMENS INDUSTRY SOFTWARE SAS (SIEMENS-PLM) FUNDACION TEKNIKER (TEKNIKER) FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V (F-IPK) TOFAS TURK OTOMOBIL FABRIKASI ANONIM SIRKETI (TOFAS) ALFA HOGAR S.L. (ALFA) P...

BACKGROUND During the past few years, many manufacturers have introduced new modes of ventilation in anesthesia ventilators, especially partial-pressure modalities. The current bench test study was designed to compare triggering and pressurization of five new anesthesia ventilators with four intensive care unit ventilators. METHODS Ventilators were connected to a two-compartment lung model. O...

PURPOSE The increasing complexities of the geometry of 3D radiation treatment plans possess challengesto the monitor unit (MU) and dose verification in clinical routine. In this work, the commissioningof the DIAMOND software (PTW-Freiburg Germany) for two Siemens linear accelerators(Primus & Artiste) along with the evaluation of its performance is described. METHODS DIAMOND employs the modifi...