Abstract
Particle-induced X-ray emission is used for determining the elemental composition of materials. This method uses low-energy protons (of several MeV), which can be obtained from high-energy (of tens MeV) accelerators. Instead of manufacturing an accelerator for generating the MeV protons, the use of a PET cyclotron has been suggested for designing the beamline for multipurpose applications, especially for the PIXE experiment, which has a dedicated high-energy (of tens MeV) accelerator. The beam properties of the cyclotron were determined at this experimental facility by using an external beamline before transferring the ion beam to the experimental chamber. We measured the beam profile and calculated the emittance using the pepper-pot method. The beam profile was measured as the beam current using a wire scanner, and the emittance was measured as the beam distribution at the beam dump using a radiochromic film. We analyzed the measurement results and are planning to use the results obtained in the simulations of external beamline and aligned beamline components. We will consider energy degradation after computing the beamline simulation. The experimental study focused on measuring the emittance from the cyclotron, and the results of this study are presented in this paper.
Highlights
Particle-induced X-ray emission is a nondestructive technique used for determining the elemental composition of materials or samples
The CRC has been proposed to be used for producing an external beamline for experimental research
There is no correlation between beam emittance and energy degradation at the end of beamline
Summary
Particle-induced X-ray emission is a nondestructive technique used for determining the elemental composition of materials or samples This method has been applied in many different fields using low-energy protons (1–5 MeV); protons with this energy can be generated at MeV accelerator facilities [1]. PET cyclotrons (of 13 MeV) have been proposed for providing a beam of protons with energy of several MeV for designing the beamline for multipurpose applications To extend their applicability, the cyclotrons can be utilized for analytical techniques that use MeV ion beams with energy attenuation. The PIXE beamline consists of one dipole magnet, one quadrupole doublet, and one quadrupole triplet These magnets are used for focusing the beam to the PIXE chamber with linear dimension of about 1 mm. The beam size should be adjusted from 1 to 10 mm and the beam current of 50 nA should be obtained at the PIXE beamline target chamber
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