Using high-energy photon beams is one of the most practical methods in radiotherapy
treatment of cases in deep site located tumors. In such treatments, neutron contamination …

In this work, the dose equivalent due to photoneutrons and the neutron spectra in tissue was
calculated for various linacs (Varian Clinac 2100C, Elekta Inor, Elekta SL25 and Siemens …

High-energy linacs produce secondary particles such as neutrons (photoneutron
production). The neutrons have the important role during treatment with high energy photons …

A fully detailed Monte Carlo geometrical model of an 18 MV Varian Clinac 2100C medical
linear accelerator, lodged at Blida Anti-Cancer Centre in Algeria, was developed during this …

Despite the importance of photoneutrons doses produced in the high-energy linear
accelerators, currently they are not considered in the treatment planning systems. Therefore …

目的通过对医用电子直线加速器感生放射性进行测量, 研究感生放射性冷却规律, 并为评估患者,
医务人员及公众额外受照剂量提供基础数据. 方法采用automess—6150AD6/H+ 6150AD-b/H …

An improved neutron activation technique is analyzed that can be used for the
characterization of the neutron field in low neutron flux environments, such as medical …

A radiation treatment delivery technique, intensity modulated radiation therapy (IMRT), has
found widespread use in the treatment of cancers. One of IMRT implementing methods is …

The operation of a medical linear accelerator was simulated using the Geant4 code
regarding to study the characteristics of an 18 MeV photon beam. Simulations showed that …

We measured the recoil charged particles from secondary neutrons produced by the
photonuclear reaction in a water phantom from a 10-MV photon beam from medical linacs …