Concept of multiple-cell cavity for axion dark matter search

TL;DR

This paper introduces a novel multiple-cell cavity design for axion dark matter searches, enhancing detection volume and simplifying setup, demonstrated through experimental feasibility of a double-cell cavity.

Contribution

The paper proposes a new multiple-cell cavity concept that improves detection volume and phase-matching simplicity in axion search experiments.

Findings

Double-cell cavity demonstrated feasibility

Enhanced detection volume compared to single cavities

Simplified phase-matching mechanism

Abstract

In cavity-based axion dark matter search experiments exploring high mass regions, multiple-cavity design is considered to increase the detection volume within a given magnet bore. We introduce a new idea, referred to as multiple-cell cavity, which provides various benefits including a larger detection volume, simpler experimental setup, and easier phase-matching mechanism. We present the characteristics of this concept and demonstrate the experimental feasibility with an example of a double-cell cavity.