Simulations of photoneutron generation are presented for the anticipated experimental campaign at ELI-ALPS using under-commissioning e-SYLOS beamline. Photoneutron is a three-step process starting with creation relativistic electron beam which converted to gamma radiation, in turn generates neutrons via ?,n interaction high-Z material. Electrons accelerated energies laser wakefield acceleration...

Introduction: The utilization of high-energy photons in the medical linear accelerator can lead to photoneutron production. This study aimed to evaluate the effect of the physical components of the head, including flattening filter (FF) andmultileaf collimator (MLC), as well as the dependence of therapeutic field size on the photoneutron spectrum, dose, and flux. <str...

Background: High-energy linear accelerator (linac) is a valuable tool and the most commonly device for external beam radiation treatments in cancer patients. In the linac head, high-energy photons with energies above the threshold of interaction produce photoneutrons. These photoneutrons deliver the extra dose to the patients in the planning treatment and increase the risk of secondary cancer.O...

9 The cross section for photoneutron production in Be at energies of 1. 692, 1. 720, and 1. 78 Mev has been investigated using radioisotope gamma-ray sources. Neutron counting was by manganous sulfate bath and a long counter. Gamma-ray counting was by a scintillation spectrometer consisting of a Nal(Tl) scintillation crystal and a 256-channel pulse^height analyzer. The following results were ob...

A new experiment configuration was designed, developed, and implemented to measure photoneutron yields using the Rensselaer Polytechnic Institute (RPI) electron linear accelerator (LINAC) at RPI Gaerttner LINAC Center. The includes a target assembly that converts beam into high energy bremsstrahlung photon flux incident upon sample material of interest. photons excite nuclei in interest, which ...