High-gain DC-mode operated Gaseous Photomultipliers for the visible spectral range

TL;DR

This paper reports on the development of high-gain gaseous photomultipliers that operate in DC mode and are sensitive to visible light, achieved through advances in photon detector technology combining bi-alkali photocathodes and gas-avalanche multipliers.

Contribution

It introduces the first feasible design of visible-range gaseous photomultipliers operating in DC mode with single-photon sensitivity.

Findings

Successful demonstration of high-gain operation in visible spectrum

First feasibility of DC-mode gaseous photomultiplier with single-photon sensitivity

Advances in combining bi-alkali photocathodes with gas-avalanche multipliers

Abstract

We shortly describe recent progress in photon detectors combining bi-alkali photocathodes and cascaded patterned gas-avalanche electron multipliers. It permitted the development and the first feasibility demonstration of high-gain gaseous photomultipliers sensitive in the visible spectral range, operated in DC mode with single-photon sensitivity.