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Detector Performance for the FIREBall-2 UV Experiment

Jewell, April D. and Hamden, Erika T. and Ong, Hwei Ru and Hennessy, John and Goodsall, Timothy and Shapiro, Charles and Cheng, Samuel and Jones, Todd and Carver, Alexander and Hoenk, Michael and Schiminovich, David and Martin, Christopher and Nikzad, Shouleh (2015) Detector Performance for the FIREBall-2 UV Experiment. In: UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX. Proceedings of SPIE. No.9601. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 96010N. ISBN 978-1-62841-767-8.

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We present an overview of the detector for the upcoming Faint Intergalactic Red-shifted Emission Balloon (FIREBall-2) experiment, with a particular focus on the development of device-integrated optical coatings and detector quantum efficiency (QE). FIREBall-2 is designed to measure emission from the strong resonance lines of HI, OVI, and CIV, all red-shifted to 195-225 nm window; its detector is a delta-doped electron multiplying charge coupled device (EM-CCD). Delta-doped arrays, invented at JPL, achieve 100% internal QE from the UV through the visible. External losses due to reflection (~70% in some UV regions) can be mitigated with antireflection coatings (ARCs). Using atomic layer deposition (ALD), thin-film optical filters are incorporated with existing detector technologies. ALD offers nanometer-scale control over film thickness and interface quality, allowing for precision growth of multilayer films. Several AR coatings, including single and multi-layer designs, were tested for FIREBall-2. QE measurements match modeled transmittance behavior remarkably well, showing improved performance in the target wavelength range. Also under development are ALD coatings to enhance QE for a variety of spectral regions throughout the UV (90-320 nm) and visible (320-1000 nm) range both for space-based imaging and spectroscopy as well as for ground-based telescopes.

Item Type:Book Section
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URLURL TypeDescription
Jewell, April D.0000-0001-8834-3769
Martin, Christopher0000-0002-8650-1644
Additional Information:© 2015 SPIE. The research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. This work was partially supported the W. M. Keck Institute for Space Studies (KISS) and by NASA Headquarters under NASA Grant NNX11AO07H and NASA Grant NNX12AF29G.
Group:Keck Institute for Space Studies
Funding AgencyGrant Number
W. M. Keck Institute for Space StudiesUNSPECIFIED
Subject Keywords:Ultraviolet, EMCCD, AR coating, delta doping, FIREBall, atomic layer deposition
Series Name:Proceedings of SPIE
Issue or Number:9601
Record Number:CaltechAUTHORS:20160104-110442437
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Official Citation:April D. Jewell ; Erika T. Hamden ; Hwei Ru Ong ; John Hennessy ; Timothy Goodsall ; Charles Shapiro ; Samuel Cheng ; Todd Jones ; Alexander Carver ; Michael Hoenk ; David Schiminovich ; Christopher Martin and Shouleh Nikzad "Detector performance for the FIREBall-2 UV experiment", Proc. SPIE 9601, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX, 96010N (August 24, 2015); doi:10.1117/12.2190167;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63326
Deposited By: Ruth Sustaita
Deposited On:04 Jan 2016 20:47
Last Modified:10 Nov 2021 23:15

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