'Quantum efficiency' presentation slideshows

839 views • 66 slides

CCD Astronomy

CCD Astronomy. Jeff Thrush. Optical Sensors used in Astronomy. Human Eye For most of history the practical sensor has been the human eye. Limited by Sensitivity Physiological considerations and human subjectivity, placed serious limits on what could be discovered. Photographic Films

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Parametric Down-conversion and other single photons sources

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A Compact 16-Module Camera Using 64-Pixel CsI(Tl)/Si PIN Photodiode Imaging Module

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Single Photon Counting Detectors for Submillimeter Astrophysics: Concept and Electrical Characterization

Single Photon Counting Detectors for Submillimeter Astrophysics: Concept and Electrical Characterization. John Teufel Department of Physics Yale University. Yale: Minghao Shen Andrew Szymkowiak Konrad Lehnert Daniel Prober Rob Schoelkopf. NASA/GSFC Thomas Stevenson Carl Stahle

527 views • 28 slides

Applications of Photovoltaic Technologies

Applications of Photovoltaic Technologies. Solar Cell-structure. Busbar. Antireflection coating. Fingers. Emitter. Antireflection texturing (grid pattern). Base. Rear contact. A solar cell is a P-N junction device

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Overview of Scientific Imaging using CCD Arrays

Overview of Scientific Imaging using CCD Arrays. Jaal Ghandhi Mechanical Engineering Univ. of Wisconsin-Madison. Detector Architecture. Charge-Coupled Device (CCD) High quantum efficiency Low noise High dynamic range High uniformity Photodiode Array CMOS. CCD Overview.

362 views • 22 slides

Xenon Detector

Xenon Detector. Xenon Detector Group. Contents. Construction Status Cryostat PMT mounts PMT Pisa PMT test PSI PMT test Trouble report Neutron background at PiE5 Schedule. Construction Status. Cryostat PMT mounts. Cryostat Construction. Construction at SIMIC http://www.simic.it

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MODULAr: concept design of internal detector mechanics

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Orthogonal-Transfer Charge-Coupled Devices and Low-Noise Charge-Coupled Devices Readout Circuits*

Orthogonal-Transfer Charge-Coupled Devices and Low-Noise Charge-Coupled Devices Readout Circuits*. Barry E. Burke.

550 views • 20 slides

(MINOS NearDet) Electronics Overview

(MINOS NearDet) Electronics Overview. A heuristic, pedagogical introduction. Introduction. Basics of signal measurement Photons PMT Signals ADCs MINOS Near Detector Electronics Front End vs. Readout Run Types Data Format. Ionizing particle. Alner Box. Module Connector. PMT (M64).

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Review

Review. Poisson Random Variable P [X = i ] = e - ? ? i / i! i.e. the probability that the number of events is i E [ X ] = ? for Poisson Random Variable ? X 2 = ? . Signal to Noise Ratio. Object we are trying to detect. ?I. I. Background. Definitions:.

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Deposition of Pure Lead Photo-Cathodes by Means of UHV Cathodic Arc

Deposition of Pure Lead Photo-Cathodes by Means of UHV Cathodic Arc. P. Strzy?ewski 1) , J. Langner 1) , M.J. Sadowski 1) , J. Witkowski 1) , J. Sekutowicz 2) , T. Rao 3) , J. Smedley 3) , P. Kneisel 4) , L. Cultrera 5) , G. Gatti 5) and F. Tazzioli 5)

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Chapter 13-15 Molecular Spectroscopy Electronic Transitions

Chapter 13-15 Molecular Spectroscopy Electronic Transitions. Fluorescence excitation and emission spectra (quinine). Spec 20. Quantum Yield ( ?) (or Quantum Efficiency) -measure of how many molecules fluoresce compared to number that get excited.

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The EPIC-PN response matrix - update

The EPIC-PN response matrix - update. Known problems in PN6.6 / SAS6.0. Frank Haberl EPIC Cal meeting, VILSPA, 23.-24. March 2004. 1) Redistribution at 400 eV. 2) Flat shelf. 3) Si and Au edges. Residuals in spectra used for gain fits at Au edge: PKS 2155 Mkn 421 3C273 MCG-6-30-15.

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Photo Detectors for Fiber Optic Communication

Eric Gallo. Fiber Optics ECE-E641 Winter 2003. Photo Detectors for Fiber Optic Communication. Photo-detectors. Convert light energy (photons) back into electrical signals in communication Broad range of devices with varying range of light absorption

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Different sources of noise in EM-CCD cameras

Different sources of noise in EM-CCD cameras. Shot noise Readout noise Dark current Spurious noise (also called Clock Induced Charge) Noise Factor (also called Amplification noise) . Shot noise.

265 views • 9 slides

Quantum Yield ( ?) (or Quantum Efficiency)

Quantum Yield ( ?) (or Quantum Efficiency) -measure of how many molecules fluoresce compared to number that get excited. Quantitative Fluorescence. Infrared Spectroscopy. Chapters 16-17 Chapter 7- I.

892 views • 4 slides

Development of Gaseous Photomultiplier with GEM/ ? PIC

Development of Gaseous Photomultiplier with GEM/ ? PIC. 120mV. Hiroyuki Sekiya ICRR, University of Tokyo E-mail: sekiya@icrr.u-tokyo.ac.jp.

84 views • 1 slides