Preliminary Modeling Of Radiation Levels At The Fermilab PIP-II Linac

TL;DR

This paper estimates radiation levels in the Fermilab PIP-II linac gallery using Monte Carlo simulations to support civil engineering and mechanical design considerations for the high-power proton accelerator.

Contribution

It provides the first preliminary radiation level estimates for the PIP-II linac using FLUKA and MARS15, aiding design and safety planning.

Findings

Radiation levels are within safety limits for the specified beam loss

Monte Carlo simulations effectively predict radiation distribution

Supports civil and mechanical engineering design decisions

Abstract

PIP-II is the Fermilab's flagship project for providing powerful, high-intensity proton beams to the laboratory's experiments. The heart of PIP-II is an 800-MeV superconducting linac accelerator. It will be located in a new tunnel with new service buildings and connected to the present Booster through a new transfer line. To support the design of civil engineering and mechanical integration, this paper provides preliminary estimation of radiation level in the gallery at an operational beam loss limit of 0.1 W/m, by means of Monte Carlo calculations with FLUKA and MARS15 codes.