title: Behavior of characteristic X-rays from a partial-transmission-type X-ray target.
abstract: The angular distribution of characteristic X-rays using a partial-transmission tungsten target was analyzed. Twenty four tallies were modeled to cover a 360° envelope around the target. The Monte Carlo N-Particle (MCNP5) simulation results revealed that the characteristic X-ray flux is not always isotropic around the target. Rather, the flux mainly depends on the target thickness and the energy of the incident electron beam. A multi-energy photon generator is proposed to emit high-energy characteristic X-rays, where the target acts as a filter for the low-energy characteristic X-rays.
authors.affiliation: Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST), 373-1 Guseong, Yuseong, Daejeon 305-701, Republic of Korea.
authors.forename: Hamid Saeed
authors.initials: HS
authors.lastname: Raza
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: Kim
authors.forename: Jun Mok
authors.initials: JM
authors.lastname: Ha
authors.forename: Sung Oh
authors.initials: SO
authors.lastname: Cho
keywords: Angular distribution; Characteristic X-rays; Monte Carlo; Target thickness