A fringe projector-based study of the Brighter-Fatter Effect in LSST CCDs

Gilbertson, W.; Nomerotski, A.; Takacs, P.

doi:10.1088/1748-0221/12/09/C09009

Title: A fringe projector-based study of the Brighter-Fatter Effect in LSST CCDs

Full Record
Other Related Research

Abstract

In order to achieve the goals of the Large Synoptic Survey Telescope for Dark Energy science requires a detailed understanding of CCD sensor effects. One such sensor effect is the Point Spread Function (PSF) increasing with flux, alternatively called the `Brighter-Fatter Effect.' Here a novel approach was tested to perform the PSF measurements in the context of the Brighter-Fatter Effect employing a Michelson interferometer to project a sinusoidal fringe pattern onto the CCD. The Brighter-Fatter effect predicts that the fringe pattern should become asymmetric in the intensity pattern as the brighter peaks corresponding to a larger flux are smeared by a larger PSF. By fitting the data with a model that allows for a changing PSF, the strength of the Brighter-Fatter effect can be evaluated.

Authors:

Gilbertson, W. ^[1]; Nomerotski, A. ^[2]; Takacs, P. ^[2]

Univ. of Arkansas, Fayetteville, AR (United States). Dept. of Physics; Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.

Publication Date:: Thu Sep 07 00:00:00 EDT 2017

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1399664

Report Number(s):: BNL-114338-2017-JA
Journal ID: ISSN 1748-0221

Grant/Contract Number:: SC0012704

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Instrumentation

Additional Journal Information:: Journal Volume: 12; Journal Issue: 09; Conference: Precision Astronomy with Fully Depleted CCDs, Upton, NY (United States), 01-02 Dec 2016; Journal ID: ISSN 1748-0221

Publisher:: Institute of Physics (IOP)

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats


                    Gilbertson, W., Nomerotski, A., and Takacs, P. A fringe projector-based study of the Brighter-Fatter Effect in LSST CCDs.  United States: N. p., 2017. 
Web.  doi:10.1088/1748-0221/12/09/C09009.

Copy to clipboard


                    Gilbertson, W., Nomerotski, A., & Takacs, P. A fringe projector-based study of the Brighter-Fatter Effect in LSST CCDs.  United States.  https://doi.org/10.1088/1748-0221/12/09/C09009

Copy to clipboard


                    Gilbertson, W., Nomerotski, A., and Takacs, P. Thu .  
"A fringe projector-based study of the Brighter-Fatter Effect in LSST CCDs".  United States.  https://doi.org/10.1088/1748-0221/12/09/C09009.  https://www.osti.gov/servlets/purl/1399664.

Copy to clipboard


                    
@article{osti_1399664,

  title        = {A fringe projector-based study of the Brighter-Fatter Effect in LSST CCDs},

  author       = {Gilbertson, W. and Nomerotski, A. and Takacs, P.},

  abstractNote = {In order to achieve the goals of the Large Synoptic Survey Telescope for Dark Energy science requires a detailed understanding of CCD sensor effects. One such sensor effect is the Point Spread Function (PSF) increasing with flux, alternatively called the `Brighter-Fatter Effect.' Here a novel approach was tested to perform the PSF measurements in the context of the Brighter-Fatter Effect employing a Michelson interferometer to project a sinusoidal fringe pattern onto the CCD. The Brighter-Fatter effect predicts that the fringe pattern should become asymmetric in the intensity pattern as the brighter peaks corresponding to a larger flux are smeared by a larger PSF. By fitting the data with a model that allows for a changing PSF, the strength of the Brighter-Fatter effect can be evaluated.},

  doi          = {10.1088/1748-0221/12/09/C09009},

  journal      = {Journal of Instrumentation},

  number       = 09,

  volume       = 12,

  place        = {United States},

  year         = {Thu Sep 07 00:00:00 EDT 2017},

  month        = {Thu Sep 07 00:00:00 EDT 2017}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1088/1748-0221/12/09/C09009

Other availability

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Mitigation of the Brighter-Fatter Effect in the LSST Camera

Technical Report Murgia, Simona ; Broughton, Alexander

Thick, fully depleted charge-coupled devices (CCDs) are known to exhibit non-linear behavior at high signal levels due to the dynamic behavior of charges collecting in the potential wells of pixels, called the brighter-fatter effect (BFE). This particularly impacts bright calibration stars, which appear larger than their intrinsic shape, creating a flux-dependent point-spread function (PSF) that if left unmitigated, could make up a large fraction of the error budget in Stage IV weak-lensing (WL) surveys such as the Legacy Survey of Space and Time (LSST). In this paper, we analyze image measurements of flat fields and artificial stars taken at differentmore »« less
https://doi.org/10.2172/2310361

Full Text Available
PSF and MTF Measurement Methods for Thick CCD Sensor Characterization

Journal Article Takacs, P Z ; Kotov, I ; Frank, J ; ... - Proceedings of SPIE - The International Society for Optical Engineering

Knowledge of the point spread function (PSF) of the sensors to be used in the Large Synoptic Survey Telescope (LSST) camera is essential for optimal extraction of subtle galaxy shape distortions caused by gravitational weak lensing. We have developed a number of techniques for measuring the PSF of candidate CCD sensors to be used in the LSST camera, each with its own strengths and weaknesses. The two main optical PSF measurement techniques that we use are the direct Virtual Knife Edge (VKE) scan as developed by Karcher, et al. and the indirect interference fringe method after Andersen and Sorensen thatmore »« less
https://doi.org/10.1117/12.856738
Exploring the Brighter-fatter Effect with the Hyper Suprime-Cam

Journal Article Coulton, William R. ; Armstrong, Robert ; Lupton, Robert H. ; ... - The Astronomical Journal (Online)

The brighter-fatter effect has been postulated to arise due to the build up of a transverse electric field, produced as photocharges accumulate in the pixels’ potential wells. We investigate the brighter-fatter effect in the Hyper Suprime-Cam by examining flat fields and moments of stars. We observe deviations from the expected linear relation in the photon transfer curve (PTC), luminosity-dependent correlations between pixels in flat-field images, and a luminosity-dependent point-spread function (PSF) in stellar observations. Under the key assumptions of translation invariance and Maxwell’s equations in the quasi-static limit, we give a first-principles proof that the effect can be parameterized bymore »« less
https://doi.org/10.3847/1538-3881/AAC08D
Brighter-fatter Effect in Near-infrared Detectors—III. Fourier-domain Treatment of Flat Field Correlations and Application to WFIRST

Journal Article Freudenburg, Jenna K. C. ; Givans, Jahmour J. ; Choi, Ami ; ... - Publications of the Astronomical Society of the Pacific

Weak gravitational lensing has emerged as a leading probe of the growth of cosmic structure. However, the shear signal is very small and accurate measurement depends critically on our ability to understand how non-ideal instrumental effects affect astronomical images. The Wide-Field Infrared Survey Telescope (WFIRST) will fly a focal plane containing 18 Teledyne H4RG-10 near-infrared detector arrays, which present different instrument calibration challenges from previous weak lensing observations. Previous work [Paper I: Hirata & Choi, PASP, 132, 014501 (2020); and Paper II: Choi & Hirata, PASP, 132, 014502 (2020)] has shown that correlation functions of flat field images, including cross-correlationsmore »« less
https://doi.org/10.1088/1538-3873/ab9503

Full Text Available
Characterization of Prototype LSST CCDs

Conference OCONNOR, P ; FRANK, J ; GEARY, J C ; ...

The ambitious science goals of the Large Synoptic Survey Telescope (LSST) will be achieved in part by a wide-field imager that will achieve a new level of performance in terms of area, speed, and sensitivity. The instrument performance is dominated by the focal plane sensors, which are now in development. These new-generation sensors will make use of advanced semiconductor technology and will be complemented by a highly integrated electronics package located inside the cryostat. A test laboratory has been set up at Brookhaven National Laboratory (BNL) to characterize prototype sensors and to develop test and assembly techniques for eventual integrationmore »« less
Full Text Available

Similar Records