[3C09-13] 加速器2

[3C12] Present Status of Linear IFMIF Prototype Accelerator (LIPAc)

(4)Genetic algorithms aided optics optimization for beam energy spread measurements

*Andrea De Franco¹, Tomoya Akagi¹, Manuel Peres Alonso², Koki Hirosawa¹, David Jimenez⁴, Keitaro Kondo¹, Saerom Kwon¹, Jacques Marroncle³, Kai Masuda¹, Masayuki Ohta¹ (1. QST, 2. IST-IPFN, 3. CEA, 4. CIEMAT)

キーワード：Proton/deuteron accelerator, Beam optics, Beam diagnostic, Genetic algorithms, Simulation

The Linear IFMIF Prototype Accelerator (LIPAc) is designed to provide 125mA CW Deuteron beams at 9MeV. The system is under commissioning and before the final superconductive cavity accelerating stage is installed, a complete beam characterization is desirable to validate the previous stages. This work focuses on the beam energy spread after the Radio Frequency Quadrupole module by measuring the transverse profile in a dispersive position after a dipole. Challenges include the considerable space charge, extreme radiation environment and limited amount of diagnostic installed due to the necessary compactness of the system. To mitigate systematics the measurement is performed at different optics of the transport line. A genetic algorithm is used to find suitable optics on a pareto front of multi-objective optimization simulations.