Download or read book Measurements of the Fluorescence Light Yield in Electromagnetic Showers written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The two most common methods of determining the energy of an ultra high energy cosmic ray (UHECR) are ground arrays and fluorescence telescopes. Ground array detectors determine energy by sampling the number of shower particles arriving at the surface of the earth. In general, the more particles, the higher the energy. Fluorescence telescopes, on the other hand, determine the energy by measuring the number of ultraviolet photons produced by the electromagnetic shower produced in the atmosphere. The number of photons is related to the number of particles in the shower by the fluorescence yield (measured in photons per meter per charged particle). The Akeno Giant Air Shower Array (AGASA) and the High Resolution Flys Eye (HiRes) are the current world leading ground array and fluorescence detectors, respectively. Recent results from the two experiments indicate a significant discrepancy in the flux of cosmic rays as a function of energy [1-3]. This indicates that there may be a systematic offset in energy determination in the two techniques. The Fluorescence in Air from Showers (FLASH) experiment is an effort to reduce the systematic uncertainty in energy determination for fluorescence detectors by making an improved measurement of the fluorescence yield. This work is intended to add to the prior work of Bunner, Kakimoto et al. and Nagano et al. [4-7]. We report on the current status of the experiment.
Download or read book Comparison of Air Fluorescence and Ionization Measurements of E M Shower Depth Profiles written by J. Smith and published by . This book was released on 2005 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements are reported on the fluorescence of air as a function of depth in electromagnetic showers initiated by bunches of 28.5 GeV electrons. The light yield is compared with the expected and observed depth profiles of ionization in the showers. It validates the use of atmospheric fluorescence profiles in measuring ultra high energy cosmic rays.
Download or read book An Experiment to Measure the Air Fluorescence Yield in Electromagnetic Showers written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluorescence in Air from Showers (FLASH) or E-165 is an experiment to be carried out at the Stanford Linear Accelerator Center (SLAC). It aims to measure the total and the spectrally resolved air fluorescence yield of electromagnetic showers with an accuracy of better than 10%. The experiment explores the energy dependence of the yield down to the lowest energies effective in air showers, (almost equal to) 100 keV. For this experiment, the SLAC linac will deliver a 28.5 GeV electron beam at intensities of 107 to 109 particles per pulse. A thin target run will allow us to measure the fluorescence yield per beam track depending on pressure and atmospheric impurities. Later, the interaction of the beam in a thick target will mimic the distribution of electron energies found deep in cosmic ray induced air showers. In June 2002, a test experiment at SLAC measuring the total fluorescence of air and nitrogen between 300 and 400 nm in a thin target mode has proven the feasibility of such an experiment. Results of this test run will be presented.
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 Particle Detectors written by Hermann Kolanoski and published by Oxford University Press. This book was released on 2020-06-30 with total page 949 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the fundamentals of particle detectors as well as their applications. Detector development is an important part of nuclear, particle and astroparticle physics, and through its applications in radiation imaging, it paves the way for advancements in the biomedical and materials sciences. Knowledge in detector physics is one of the required skills of an experimental physicist in these fields. The breadth of knowledge required for detector development comprises many areas of physics and technology, starting from interactions of particles with matter, gas- and solid-state physics, over charge transport and signal development, to elements of microelectronics. The book's aim is to describe the fundamentals of detectors and their different variants and implementations as clearly as possible and as deeply as needed for a thorough understanding. While this comprehensive opus contains all the materials taught in experimental particle physics lectures or modules addressing detector physics at the Master's level, it also goes well beyond these basic requirements. This is an essential text for students who want to deepen their knowledge in this field. It is also a highly useful guide for lecturers and scientists looking for a starting point for detector development work.
Download or read book 2005 CERN CLAF School of High Energy Physics written by Nick Ellis and published by . This book was released on 2006 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beam Line written by and published by . This book was released on 1997 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beam Line Fall Winter 1998 Vol 28 No 3 written by and published by DIANE Publishing. This book was released on with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Papers HE sessions written by and published by . This book was released on 1985 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 19th International Cosmic Ray Conference La Jolla USA August 11 23 1985 HE sessions written by and published by . This book was released on 1985 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beam Line written by and published by . This book was released on 1997 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Conference Publication written by and published by . This book was released on 1985 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction To Ultrahigh Energy Cosmic Ray Physics written by Pierre Sokolsky and published by CRC Press. This book was released on 2018-03-08 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmic ray physics has recently attracted a great deal of attention from the high energy physics community because of the discovery of new sources and the advent of new techniques. The result of a series of lectures prepared for graduate students and postdoctoral researchers, this book is a general introduction to experimental techniques and results in the field of ultrahigh energy cosmic rays. It succinctly summarizes the rapidly developing field, and provides modern results that include data from newer detectors. Combining experiment and theory, the text explores the results of a single, easy-to-understand experiment to tie together various issues involved in the physics of ultrahigh energy cosmic rays.
Download or read book Principles of Radiation Interaction in Matter and Detection written by Claude Leroy and published by World Scientific. This book was released on 2011-09-23 with total page 1041 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, like the first and second editions, addresses the fundamental principles of interaction between radiation and matter and the principles of particle detection and detectors in a wide scope of fields, from low to high energy, including space physics and medical environment. It provides abundant information about the processes of electromagnetic and hadronic energy deposition in matter, detecting systems, performance of detectors and their optimization.The third edition includes additional material covering, for instance: mechanisms of energy loss like the inverse Compton scattering, corrections due to the Landau?Pomeranchuk?Migdal effect, an extended relativistic treatment of nucleus?nucleus screened Coulomb scattering, and transport of charged particles inside the heliosphere. Furthermore, the displacement damage (NIEL) in semiconductors has been revisited to account for recent experimental data and more comprehensive comparisons with results previously obtained.This book will be of great use to graduate students and final-year undergraduates as a reference and supplement for courses in particle, astroparticle, space physics and instrumentation. A part of the book is directed toward courses in medical physics. The book can also be used by researchers in experimental particle physics at low, medium, and high energy who are dealing with instrumentation.
Download or read book Principles Of Radiation Interaction In Matter And Detection 4th Edition written by Pier-giorgio Rancoita and published by World Scientific. This book was released on 2015-12-17 with total page 1345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourth edition of this book has been widely revised. It includes additional chapters and some sections are complemented with either new ones or an extension of their content.In this latest edition a complete treatment of the physics and properties of semiconductors is presented, covering transport phenomena in semiconductors, scattering mechanisms, radiation effects and displacement damages. Furthermore, this edition presents a comprehensive treatment of the Coulomb scattering on screened nuclear potentials resulting from electrons, protons, light- and heavy-ions — ranging from (very) low up to ultra-relativistic kinetic energies — and allowing one to derive the corresponding NIEL (non-ionizing energy-loss) doses deposited in any material.The contents are organized into two parts: Chapters 1 to 7 cover Particle Interactions and Displacement Damage while the remaining chapters focus on Radiation Environments and Particle Detection.This book can serve as reference for graduate students and final-year undergraduates and also as supplement for courses in particle, astroparticle, space physics and instrumentation. A section of the book is directed toward courses in medical physics. Researchers in experimental particle physics at low, medium, and high energy who are dealing with instrumentation will also find the book useful.
Download or read book Conference Papers written by and published by . This book was released on 1985 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers for each conference issued in several volumes. Volumes distributed to conference registrants have title "Conference papers"; other volumes of papers published after the conference are identified as "Late papers", "Invited papers", or other similar titles. Most conferences also have a general index volume.
Download or read book Intersections of Particle and Nuclear Physics written by Zohreh Parsa and published by American Inst. of Physics. This book was released on 2004-03-09 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this meeting, as with the seven previous conferences in this series, was to bring together particle and nuclear physicists to share scientific reports and discuss areas of research which overlap both their disciplines. Its relevance has steadily grown as the areas of overlap between particle and nuclear physics have increased. In addition, the success of the standard model has provided a common underpinning for both disciplines as well as similar fundamental goals. Indeed, Quantum Chromodynamics (QCD) has proven to be "the" theory of strong interactions. As such, it forms the basis for nuclear physics as well as high energy hadronic interactions. Topics included are: QCD spectroscopy and dynamics, relativistic heavy ions, QCD and nuclear structure, lepton-hadron and hadron-hadron scattering, heavy quark and heavy lepton physics, spin physics, nuclear and particle astrophysics, neutrinos, accelerators, facilities and detectors, as well as tests of fundamental symmetries.
