A Gd Based Gaseous Electron Multiplier Detector for Neutron Scattering Applications PDF Download
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Author: Douglas David Di Julio
Publisher:
ISBN:
Category :
Languages : en
Pages : 78
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Book Description
Keywords: neutron detector, neutron scattering, GEM detector, Gd.
Author: Douglas David Di Julio
Publisher:
ISBN:
Category :
Languages : en
Pages : 78
Get Book Here
Book Description
Keywords: neutron detector, neutron scattering, GEM detector, Gd.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The Gaseous Electron Multiplier (GEM) neutron detector is one of several new concepts that are being designed for the next generation neutron sources. The detector contains multiple modules where each module contains a central neutron converter, several cascaded GEM foils, and readout plates on both sides of the cathode. The device employs a Gd/CsI converter sandwich to convert the neutron to an electric signal. Upon neutron absorption in the Gd layer, conversion electrons are emitted with a probability of 86.5%. Primary electrons travel into the CsI and multiply, inducing the emission of low energy electrons from the converter surface. Several cascaded GEM foils placed on both sides of the converter amplify the signal. The position of the signal is then time stamped and detected by position sensitive anodes and localization electronics. Extensive Monte Carlo simulations, using the PENELOPE code package, have been completed in order to calculate integral and differential characteristics (i. e. the average number of secondary electrons emitted from the converter and the secondary electron escape probability distribution) of various converter thicknesses. The performance of the detector can be assessed by estimating the secondary electron (SE) leakage from the converter foil. Simulations to calculate the SE leakage have been performed for both the single and several multiple module designs. The multiple module design allows for a greater SE leakage while maintaining high detector efficiency and divides the total count rate among several sets of decoding electronics. Tests of several different detector prototypes were completed at the NCSU PULSTAR reactor. Results of the tests of the prototype detectors revealed the essential elements of detector operation. Detector efficiencies, pulse height spectra, and 2-D position spectra have been measured with each of the detector prototypes.
Author: Fabio Sauli
Publisher: Cambridge University Press
ISBN: 1139992767
Category : Science
Languages : en
Pages : 513
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Book Description
Widely used in high-energy and particle physics, gaseous radiation detectors are undergoing continuous development. The first part of this book provides a solid background for understanding the basic processes leading to the detection and tracking of charged particles, photons, and neutrons. Continuing then with the development of the multi-wire proportional chamber, the book describes the design and operation of successive generations of gas-based radiation detectors, as well as their use in experimental physics and other fields. Examples are provided of applications for complex events tracking, particle identification, and neutral radiation imaging. Limitations of the devices are discussed in detail. Including an extensive collection of data and references, this book is ideal for researchers and experimentalists in nuclear and particle physics.
Author: Fabio Sauli
Publisher: World Scientific
ISBN: 9811222231
Category : Science
Languages : en
Pages : 364
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Book Description
As a continuation of the author's earlier work (Gaseous Radiation Detectors: Fundamental and Applications, Cambridge University Press 2014), this book describes in detail the recent developments and applications of advanced micro-pattern gaseous devices. Across different chapters, readers will learn of the most basic observations, measurements and applications of this novel technology within particle physics, astrophysics, medicine, cultural heritage studies and more. The content is based richly on a pool of information distilled from a large number of papers and reports on the subject, as well as presentations at topical Conferences and Symposia.The author, Fabio Sauli, is an expert with several hundreds of publications in the field. He is also the inventor of one of the major technologies described — the Gas Electron Multiplier — widely used in particle physics and other applied fields.
Author: J. M. Carpenter
Publisher: Cambridge University Press
ISBN: 0521857813
Category : Science
Languages : en
Pages : 539
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Book Description
This book provides a comprehensive and up-to-date introduction to the fundamental theory and applications of slow-neutron scattering.
Author: Elena Aprile
Publisher: John Wiley & Sons
ISBN: 3527609636
Category : Science
Languages : en
Pages : 362
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Book Description
This book discusses the physical properties of noble fluids, operational principles of detectors based on these media, and the best technical solutions to the design of these detectors. Essential attention is given to detector technology: purification methods and monitoring of purity, information readout methods, electronics, detection of hard ultra-violet light emission, selection of materials, cryogenics etc. The book is mostly addressed to physicists and graduate students involved in the preparation of fundamental next generation experiments, nuclear engineers developing instrumentation for national nuclear security and for monitoring nuclear materials.
Author:
Publisher: Academic Press
ISBN: 0128192151
Category : Science
Languages : en
Pages : 410
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Book Description
Neutron Crystallography in Structural Biology, Volume 634, the latest volume in the Methods in Enzymology series, continues the legacy of this premier serial with quality chapters authored by leaders in the field. Chapters in this updated release include Fundamentals of neutron crystallography in structural biology, Large crystal growth for neutron protein crystallography, Prospects for membrane protein crystals in NMX, IMAGINE: The neutron protein crystallography beamline at the high flux isotope reactor, The macromolecular neutron diffractometer at the spallation neutron source, Current status and near future plan of neutron protein crystallography at J-PARC, Neutron macromolecular crystallography at the European spallation source, and much more. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Methods in Enzymology series Includes the latest information on neutron crystallography in structural biology
Author: Elena Rocco
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838370408
Category :
Languages : en
Pages : 168
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Book Description
The Cherenkov radiation is often used for the particle identification (PID) not only in high energy physics experiments. Large area photon detectors have to be equipped making a strong constraint on the photon detector s costs and in the mechanical realisation. The THick Gas Electron Multiplier (THGEM) is derived from the Gas Electron Multiplier (GEM) design, scaling the geometrical parameters and changing the production technology. The THGEM is a good candidate for the Cherenkov imaging applications because of good single photon detection efficiency, intrinsic mechanical stiffness and robustness against the electrical discharges. Other issues related to the efficiency of photon detection, e.g. the ion bombardment on the photocathode, are presented. The systematic studies here reported throw light also on the correlation between the THGEM performance as detector of ionising particles and the geometrical parameters related to the production process. The results discussed can be used not only for Cherenkov imaging applications.
Author: Sahara Jesmin Mohammed Prem Nazeer
Publisher:
ISBN:
Category : Electron
Languages : en
Pages : 0
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Book Description
Author: Eugenio Nappi
Publisher: John Wiley & Sons
ISBN: 3527640304
Category : Science
Languages : en
Pages : 372
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Book Description
Describing advanced detectors and their visualization and investigation techniques, this book presents the major applications in nuclear and high-energy physics, astrophysics, medicine and radiation measurements.
