Abstract
A 200 MeV, 10 mA, medium energy high intensity proton accelerator (MEHIPA) is proposed to form the second stage of the Indian accelerator-driven system program. The linac consists of a normal conducting 3 MeV radio frequency quadrupole (RFQ) and a 200 MeV superconducting section consisting of three different families of single spoke resonators (SSR-A, SSR-B, and SSR-C). Here we discuss a detailed physics design of MEHIPA, including electro-magnetic design, multipacting analysis, higher-order mode studies, and beam dynamics. We have designed a compact linac, by careful optimization of cavity $\ensuremath{\beta}$ for the superconducting section. We also performed detailed optimization studies on the linac lattice and transport line parameters, aimed at minimizing the emittance and beam halo. Reliability analysis and error studies were performed on this optimized linac, including various beam, cavity, and magnet parameters, to estimate the operation tolerances, and the results are reported for a maximum emittance growth of 50%.
Highlights
Recent progress in accelerator technology has made it possible to use a proton accelerator to produce nuclear energy
Our analysis shows that the failure of the cavities in the proximity of the intercryomodule drift causes maximum emittance growth, as was observed for the seventh spoke resonator (SSR)-A cavity failure and ninth SSR-B cavity failure leading to an emittance growth of 40% and 35% respectively
A particle accelerator is prone to numerous kinds of static and dynamic errors that may lead to issues like emittance growth, beam halo growth, and power loss on the cavity walls
Summary
Recent progress in accelerator technology has made it possible to use a proton accelerator to produce nuclear energy. In an accelerator-driven system (ADS), a highintensity proton accelerator is used to produce protons of around 1 GeV energy, which strike a target such as lead or tungsten to produce spallation neutrons These neutrons enter a subcritical core and induce nuclear reactions, including fission. MEHIPA will have a front-end similar to LEHIPA, i.e., a 50 keV ECR ion source and a 3 MeV, 325 MHz RFQ, but will go superconducting immediately after For these medium energies, the accelerating structure of choice is the superconducting spoke resonator (SSR).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
