Download or read book Optical Relative Calibration and Stability Monitoring for the Auger Fluorescence Detector written by J. A. J. Matthews and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The stability of the fluorescence telescopes of the Pierre Auger Observatory is monitored with the optical relative calibration setup. Optical fibers distribute light pulses to three different diffuser groups within the optical system. The total charge per pulse is measured for each pixel and compared with reference calibration measurements. This allows monitoring the short and long term stability with respect of the relative timing between pixels and the relative gain for each pixel. The designs of the LED calibration unit (LCU) and of the Xenon flash lamp used for relative calibration, are described and their capabilities to monitor the stability of the telescope performances are studied. We report the analysis of relative calibration data recorded during 2004. Fluctuations in the relative calibration constants provide a measure of the stability of the FD.
Download or read book A complete method to obtain the energy spectrum of inclined cosnic rays detected with the Pierre Auger Observatory written by and published by Univ Santiago de Compostela. This book was released on with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Properties and Calibration of the Pierre Auger Fluorescence Detector written by Lenka Tománková and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 2005 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Absolute Relative and Multi Wavelength Calibration of the Pierre Auger Observatory Fluorescence Detectors written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Absolute calibration of the Pierre Auger Observatory fluorescence detectors uses a 375 nm light source at the telescope aperture. This end-to-end technique accounts for the combined effects of all detector components in a single measurement. The relative response has been measured at wavelengths of 320, 337, 355, 380 and 405 nm, defining a spectral response curve which has been normalized to the absolute calibration. Before and after each night of data taking a relative calibration of the phototubes is performed. This relative calibration is used to track both short and long term changes in the detector's response. A cross check of the calibration in some phototubes is performed using an independent laser technique. Overall uncertainties, current results and future plans are discussed.
Download or read book Particles and Fields written by Adnan Bashir and published by American Institute of Physics. This book was released on 2006-10-24 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this two-volume title contains the plenary lectures, research seminars, poster sessions, and laboratory courses presented at the X Mexican Workshop on Particles and Fields. The second part of this two-volume title contains 41 review papers written to commemorate the 20th anniversary of the founding of the Division of Particles and Fields of the Mexican Physical Society.
Download or read book Performance of the fluorescence detectors of the Pierre Auger Observatory written by Jose A. Bellido and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluorescence detectors of the Pierre Auger Observatory have been operating in a stable manner since January 2004. After a brief review of the physical characteristics of the detectors, the associated atmospheric monitoring, the calibration infrastructure and the detector aperture, we will describe the steps required for the reconstruction of fluorescence event data, with emphasis on the shower profile parameters and primary energy.
Download or read book Pierre Auger Observatory written by Domenico D'Urso and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quality Studies of the Data Taking Conditions for the Auger Fluorescence Detector written by A. Insolia and published by . This book was released on 2005 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: As more than half of the Fluorescence Detector (FD) of the Auger Observatory is completed, data taking is becoming a routine job. It is then necessary to follow strict procedures to assure the quality of the data. An overview of the data taking methods is given. The nature of the FD background signal is due to the night sky brightness (stars and planet faint light, moonlight, twilight, airglow, zodiacal and artificial light) and to the electronic background (photomultiplier and electronic noise). The analysis of the fluctuations in the FADC signal (variance analysis), directly proportional to the background mean light level, performed for each night of data taking is used to monitor the FD background signal. The data quality is analyzed using different techniques, described in detail. Examples of trigger rates, number of stereo events, dead time due to moonlight, weather or hardware problems are given. The analysis comprises several months of data taking, giving an overview of the FD capabilities, performance and allowing a systematic study of data and their correlation with the environment.
Download or read book XXV Physics in Collision written by Vladislav Simák and published by American Institute of Physics. This book was released on 2006-02-16 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prague, Czech Republic, 6-9 July 2005
Download or read book Particle Astrophysics Instrumentation written by Peter W. Gorham and published by SPIE-International Society for Optical Engineering. This book was released on 2003 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the National Institute of Standards and Technology Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1988 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dark Observation written by Catherine Cavendish and published by Simon and Schuster. This book was released on 2022-09-13 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: With dark secrets underground and hints of the occult, this is a must for readers of Adam Nevill and Susan Hill. "[...]if there is a crown of queen of gothic horror, [Catherine Cavendish] should be wearing it." — Modern Horrors Eligos is waiting…fulfil your destiny 1941. In the dark days of war-torn London, Violet works in Churchill's subterranean top secret Cabinet War Rooms, where key decisions that will dictate Britain’s conduct of the war are made. Above, the people of London go about their daily business as best they can, unaware of the life that teems beneath their feet. Night after night the bombs rain down, yet Violet has far more to fear than air raids. A mysterious man, a room only she can see, memories she can no longer trust, and a best friend who denies their shared past... Something or someone - is targeting her. FLAME TREE PRESS is the imprint of long-standing Independent Flame Tree Publishing, dedicated to full-length original fiction in the horror and suspense, science fiction & fantasy, and crime / mystery / thriller categories. The list brings together fantastic new authors and the more established; the award winners, and exciting, original voices. Learn more about Flame Tree Press at www.flametreepress.com and connect on social media @FlameTreePress.
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1979 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanoscopic Approaches in Earth and Planetary Sciences written by G. Jordan and published by The Mineralogical Society of Great Britain and Ireland. This book was released on 2010-08-01 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of matter at extreme length scales can differ markedly from those at length scales accessible to human observation. Nanogeoscience is described here: analytical techniques ranging from atomic force microscopy, nanoscale SIMS, TEM and EELS, to recent developments in nano-scale resolution in synchrotron radiation.
Download or read book Theory of XRF getting acquainted with the principles written by Peter Brouwer and published by . This book was released on 2006 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
