Purpose Recently, high-precision radiotherapy systems have been developed by integrating computerized tomography or magnetic resonance imaging to enhance the precision of radiotherapy. For integration with additional in a limited space, miniaturization and weight reduction linear accelerator (linac) system become important. The aim this work is develop compact medical linac based on 9.3 GHz X-b...

Purpose: To investigate the feasibility of dual-modal on-board spectral-CT/CBCT imaging using a CZT photon-counting detector mounted on Linac by Monte Carlo simulations. Methods: In this proof-of-concept study, software platform Geant4 Application for Tomography Emission (GATE) and high-performance computing hardware were utilized to design validate novel spectral-CT conventional CBCT system si...

The shielding calculations of bulk shielding for Advanced Proton Therapy Facility (APTRON) which is under design in Shanghai were carried out. The thickness of radiation shielding walls for the accelerator and treatment rooms of APTRON were determined by Monte Carlo simulation and empirical methods [1~3]. Assumptions of beam loss scenarios and workloads of different energy at LINAC, synchrotron...

A high-intensity proton accelerator facility named Japan Proton Accelerator Research Complex, or J-PARC, has been proposed as a joint project between KEK (High Energy Accelerator Research Organization) and JAERI (Japan Atomic Energy Research Institute), and the construction of its first phase has been approved by the government [1]. The construction of the linac part has recently been started a...

To prevent illegal trade of weapons, X-ray scanning systems are used for non-intrusive inspection of import containers and cargoes at every seaport and airport. Conventional X-ray scanning system for cargoes is based mainly on X-rays of several MeV energy generated by an electron Linac. For high quality X-ray imaging, an X-ray source with good directionality, narrow width of energy spectrum and...

Vero4DRT is an innovative image-guided radiotherapy system employing a C-band X-ray head with gimbal mechanics. The purposes of this study were to propose specific MC models of the linac head and multileaf collimator (MLC) for the Vero4DRT and to verify their accuracy. For a 6 MV photon beam delivered by the Vero4DRT, a simulation code was implemented using EGSnrc. The linac head model and the ...

Five new accelerating modules were installed into the TTF tunnel as a part of the VUV FEL Linac. They are tested prior to the linac operation. The RF test includes processing of the superconducting cavities, as well as maximum module performance tests. The test procedure and the achieved modules cavities performance are presented. Abstract Five new accelerating modules were installed into the T...