Large Natural Cherenkov Detectors: Water and Ice

TL;DR

This review discusses the necessity, lessons learned, and challenges in constructing large-scale Cherenkov detectors in water and ice for muon and neutrino detection, emphasizing their importance for advancing astrophysical research.

Contribution

It provides a comprehensive overview of the motivations, lessons from existing detectors, and the challenges faced in developing next-generation kilometer-scale Cherenkov detectors.

Findings

Existing detectors like Baikal and AMANDA have informed design strategies.

Next-generation detectors face challenges that are less daunting than those for current smaller detectors.

Reconstruction of events outside the instrumented volume is crucial for large effective areas.

Abstract

In this review we first address two questions: 1. Why do we need kilometer-scale muon and neutrino detectors? 2. What do we learn from the operating Baikal and AMANDA detectors about the construction of kilometer-scale detectors? I will subsequently discuss the challenges for building the next-generation detectors. The main message is that these are different, in fact less ominous, than for commissioning the present, relatively small, detectors which must reconstruct events far outside their instrumented volume in order to achieve large effective telescope area.