Mechanical stability study for Integrable Optics Test Accelerator at Fermilab

TL;DR

This paper assesses the mechanical stability of Fermilab's IOTA ring using sensors and measurements, focusing on the 3.96 m girder prototype to ensure stable particle motion in nonlinear accelerator systems.

Contribution

It introduces a detailed mechanical stability analysis of the IOTA accelerator components, particularly the 3.96 m girder prototype, for the first time.

Findings

Hydrostatic Level Sensor measurements confirm stability.

Temperature and metrology data support design robustness.

Fast motion measurements indicate adequate stability.

Abstract

The Integrable Optics Test Accelerator (IOTA) is proposed for operation at Fermilab. The goal of IOTA is to create practical nonlinear accelerator focusing systems with a large frequency spread and stable particle motion. The IOTA is a 40 m circumference, 150 MeV (e-), 2.5 MeV (p+) diagnostic test ring. A heavy low frequency steel floor girder is proposed as the primary tier for IOTA device component support. Two design lengths; (8) 3.96 m and (2) 3.1 m long girders with identical cross section completely encompass the ring. This study focuses on the 3.96 m length girder and the development of a working prototype. Hydrostatic Level Sensor (HLS), temperature, metrology and fast motion measurements characterize the anticipated mechanical stability of the IOTA ring.