16 - 21 June 2024
Yokohama, Japan
Conference 13093 > Paper 13093-26
Paper 13093-26

Advancing ultraviolet detector technology for future missions: investigating the dark current plateau in silicon detectors using photon-counting EMCCDs

17 June 2024 • 10:40 - 11:00 Japan Standard Time | Room G414/415, North - 4F

Abstract

Understanding the noise characteristics of high quantum efficiency silicon-based ultraviolet detectors, developed by the Microdevices Lab at the Jet Propulsion Laboratory, is critical for current and proposed UV missions using these devices. In this paper, we provide an overview of our detector noise characterization test bench that uses delta-doped, photon counting, Electron-multiplying CCDs (EMCCDs) to understand the fundamental noise properties relevant to all silicon CCDs and CMOS arrays. This work attempts to identify the source of the dark current plateau that has been previously measured with photon-counting EMCCDs and is known to be prevalent in other silicon-based arrays. It is suspected that the plateau could be due to a combination of detectable photons in the tail of blackbody radiation of the ambient instrument, low-level light leaks, and a non-temperature-dependent component that varies with substrate voltage. Our innovative test setup delineates the effect of the ambient environment during dark measurements by independently controlling the temperature of the detector and surrounding environment. We present the design of the test setup and preliminary results.

Presenter

Steward Observatory (United States)
Author
Steward Observatory (United States)
Presenter/Author
Steward Observatory (United States)
Author
Gillian Kyne
Jet Propulsion Lab. (United States)
Author
April D. Jewell
Jet Propulsion Lab. (United States)
Author
Jet Propulsion Lab. (United States)
Author
Jet Propulsion Lab. (United States)
Author
California Institute of Technology (United States)
Author
Olivia Jones
Steward Observatory (United States)
Author
Harrison M Bradley
Jet Propulsion Lab. (United States)
Author
Steward Observatory (United States)
Author
California Institute of Technology (United States)
Author
Brock Parker
Steward Observatory (United States)
Author
Steward Observatory (United States)
Author
Steward Observatory (United States)
Author
Steward Observatory (United States)
Author
Steward Observatory (United States)
Author
Jacob Vider
Steward Observatory (United States)