IDENTIFYING AND CORRECTING INTRA-PIXEL VARIATIONS IN NEAR-INFRARED DETECTORS The Spots-O-Matic Mike Howe and Josh Larson supervised by Prof. Greg Tarlé July 29, 2010
SPOTS-O-MATIC z z z
Joint Dark Energy Mission Wide-field telescope The problem with undersampling
SPOTS-O-MATIC z z z
Weak Lensing applications Precision photometry Necessity of an understanding of intra-pixel variations (Spot-oMatic)
SPOTS-O-MATIC z z
z
The Spot-o-Matic Measuring the intra-pixel response for one pixel Limitations with this approach for an entire detector
SPOTS-O-MATIC z
z
z
Finding the PSF of our lens to ensure that variation in pixel response is possible Detector characteristics: − HgCdTe imager −
2048 x 2048 pixels
−
18 x 18 µm² pixel
In order to measure the intra-pixel variation we want a spot-size of, at most, 5µm in diameter
SPOTS-O-MATIC z
z
Knife-Edge scan to determine the PSF of the lens Measuring the integrated signal response of the projected spot across the knife-edge
SPOTS-O-MATIC z
z
Taking a “derivative” to find a 1dimensional Gaussian fit A fit sigma of 3µ would be small enough to scan the intra-pixel variations of the HgCdTe detectors
SPOTS-O-MATIC z
Future of the project − Fabrication of all the necessary components − Software development (more in a minute...)
SPOTS-O-MATIC Software z
Four Separate Components Hardware Control Calibration Data Collection Analysis
SPOTS-O-MATIC Software z
Hardware Control Image Acquisition Stage Motion
SPOTS-O-MATIC Software z
Calibration Aligning and focusing the stage Currently being tested with simulated data
SPOTS-O-MATIC Software z
Simulations will not usually be this extreme.
SPOTS-O-MATIC Software z
Future Plans Collection of actual data Analysis This will all be done through simulations first
SPOTS-O-MATIC Thank You! Greg Tarlé
z
z
z
z
z
Michael Schubnell Wolfgang Lorenzon Curtis Weaverdyck Tomasz Biesiadzinski z
Jul 29, 2010 - SPOTS-O-MATIC. â. Future of the project. -. Fabrication of all the necessary components. -. Software development. (more in a minute...) ...
Yudistira Asnar and Paolo Giorgini. Department of Information and Communication Technology ... associated risks to the organization where the system will operate. The ..... Suppose, we are the managers of a vehicle testing plant (Fig. 5) and ...
Oct 23, 2015 - (adakite-like signature). The origin of ...... of MORB clinopyroxenes and together with the analyzed samples form ...... hypothesis could be hard to apply. ..... Geológica Digital, Santiago, Servicio Nacional de GeologÃa y MinerÃa.
Detection of reniform nematode (RN) and analysis for molecular variation .... MATERIALS AND METHODS. Soil Sample .... Sequencing was performed using the ABI PRISM Big Dye ... data from the 18S rDNA have been reported. (Blaxter et al.
Nov 22, 2007 - van Dam, T., Wahr, J., Milly, P.C.D., Shmakin, A.B., Blewitt, G.,. Lavallee, D., Larson, K.M., 2001. Crustal displacements due to continental water loading. Geophys. Res. Lett. 28, 651â654. Zhao, W., Nelson, K.D., project INDEPTH Tea
discharge signal through the river system. Human influen- .... To define consistent records of spring maximum discharge ..... filling (Figure 5). Changes in other ...
Oct 23, 2015 - affected the geochemical composition of the host rocks (Kramer et al.,. 2005 ... tive of the Jurassic back arc domain have been studied in detail by ...... reviews that significantly improved earlier versions of this manuscript.
recovery of the lambda response generated by changes between periods of brightness ... pauses by averaging data starting with the ..... Amsterdam: Elsevier.
We used these data to assess changes in streambed hydraulic conductivity with time, as a function ... as sediment was deposited on the streambed during low flow conditions. ... orheic exchange, a process that influences the quantity and qual-.
P. Leaf, P. I.) and the JHU Center for Adolescent Health (U48 DP4000040, F. Sonenstein, P. I.), both of which are .... younger, F(1, 1021) = 12.7, p < .001, and less likely to live in San Antonio, ...... Cultural diversity: A wake-up call for parents
Cryptographic protocols, which are also referred to as security protocols are used to process, store and transfer in- creasing volumes of information on our financial networks, health networks, and even our library systems, not to men- tion our conve
techniques such as WordTrees, Wordles and Tag Clouds. 1 http://www.delightedbeauty.org ... required to explain what the German translator is trying to convey.
Federal Reserve Bank of Richmond. February 2016 .... The identification assumption is that non-technology shocks have no long-run effect on productivity.
Oct 5, 2015 - ... Moschini for out- standing research assistance. The usual disclaimers apply. â Collegio Carlo Alberto (http://www.carloalberto.org/people/bartolucci/). â¡University of Turin, Collegio Carlo Alberto and IZA (http://web.econ.unito.i
Carnegie Mellon University. December 24, 2006 .... broadcast news, newspapers, and blogs for differing viewpoints. Contrary to costly human monitoring, com-.
Aug 10, 2011 - rack 10 retains a plurality of patch panels 12 that are mounted to the rack 10. .... data transmission over a differential mode transmission path of the patch cord. ... path use a center tapped inductor with two ends of the induc.
Dec 24, 2006 - editor each contribute one article addressing the issue. In addition, the .... ing Running, Sky, Animal, Person , Outdoor, Clouds, Day- time Outdoor ...... R: A language and environment for statistical computing. R Foundation.
Statistical Regularities of Perspectives in Text and Video. Proposed Work ...... Proceedings of the 9th European Conference on Machine. Learning (ECML). Klimt ...
Aug 10, 2011 - network and with remote locations via a communications service provider. In most buildings, the dedicated communi cations system is hard wired using telecommunication cables that contain ..... advantages of this invention.
Each model variant represents a simple banking application. The variation between these model variants is re- lated to: limit on the account, consortium entity, and to the currency exchange, which are only present in some variants. Figure 1 illustrat
Proceedings of the Research in Engineering Education Symposium 2009, Palm Cove, QLD. 1 ... Virginia Tech, Blacksburg, VA, USA ... an in-depth bibliometric study of English-language engineering education journal articles and conference.
sorting conveys information on the magnitude of the complementarity. Ideally, one ... market power and technology spillovers (e.g. Bloom, Schankerman, and Van Reenen ... Second, we propose a method to also exploit job-to-job transitions.
