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Ground- and space-based UV observations with EMCCDs (Conference Presentation)

Kyne, Gillian and Hamden, Erika T. and Hoadley, Keri and Martin, Christopher and Nikzad, Shouleh and Jewell, April (2019) Ground- and space-based UV observations with EMCCDs (Conference Presentation). In: UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX. Proceedings of SPIE. No.11115. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 111150B. ISBN 9781510629233. https://resolver.caltech.edu/CaltechAUTHORS:20190912-091213260

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Abstract

I will present on-going detector developments in our joint NASA/CNES balloon-borne UV multi-object spectrograph, FIREBall-2, the Faint Intergalactic Redshifted Emission Balloon. FIREBall-2 is a path finding mission to test new technology (EMCCDs) and make new constraints on the temperature and density of this gas. This instrument has been designed to detect faint emission from the circumgalactic medium (CGM) around low redshift galaxies (z ~ 0.7). One major change from FIREBall-1 has been the use of a delta-doped Electron Multiplying CCD (EMCCD). EMCCDs can be used in photon-counting (PC) mode to achieve extremely low readout noise (< 1 electron). Our testing initially focused on reducing clock-induced-charge (CIC) through wave shaping and well depth optimisation with a NuVu CCD Controller for Counting Photons (CCCP). This optimisation also includes methods for reducing dark current, via cooling, and exploring substrate voltage levels. I will present some of our dark current results from laboratory testing. We recently launched FIREBall-2 from Fort Sumner, New Mexico on September 22nd, 2018. This was the first time an EMCCD has been used for UV/optical observations in flight! I will present performance data from the flight including cosmic ray rate measurements, and some of our preliminary on-sky UV results using our data reduction.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2530520DOIVideo
ORCID:
AuthorORCID
Hoadley, Keri0000-0002-8636-3309
Jewell, April0000-0001-8834-3769
Additional Information:© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).
Group:Space Radiation Laboratory
Series Name:Proceedings of SPIE
Issue or Number:11115
Record Number:CaltechAUTHORS:20190912-091213260
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190912-091213260
Official Citation:Gillian Kyne, Erika T. Hamden, Keri Hoadley, Christopher Martin, Shouleh Nikzad, and April Jewell "Ground- and space-based UV observations with EMCCDs (Conference Presentation)", Proc. SPIE 11115, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX, 111150B (9 September 2019); https://doi.org/10.1117/12.2530520
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98602
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Sep 2019 17:15
Last Modified:03 Oct 2019 21:42

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