EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Phase I Final Report

Download or read book Phase I Final Report written by and published by . This book was released on 2001 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A position sensitive neutron detector was designed and fabricated with bundles of individual detector elements with diameters of 120 mm. These neutron scintillating fibers were coupled with optoelectronic arrays to produce a ''Fiber Detector.'' A fiber position sensitive detector was completed and tested with scattered and thermal neutrons. Deployment of improved 2D PSDs with high signal to noise ratios at lower costs per area was the overall objective of the project.

Book Development of a High count rate Neutron Detector with Position Sensitivity and High Efficiency

Download or read book Development of a High count rate Neutron Detector with Position Sensitivity and High Efficiency written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: While the neutron scattering community is bombarded with hints of new technologies that may deliver detectors with high-count-rate capability, high efficiency, gamma-ray insensitivity, and high resolution across large areas, only the time-tested, gas-filled [sup 3]He and scintillation detectors are in widespread use. Future spallation sources with higher fluxes simply must exploit some of the advanced detector schemes that are as yet unproved as production systems. Technologies indicating promise as neutron detectors include pixel arrays of amorphous silicon, silicon microstrips, microstrips with gas, and new scintillation materials. This project sought to study the competing neutron detector technologies and determine which or what combination will lead to a production detector system well suited for use at a high-intensity neutron scattering source.

Book A New Position sensitive Detector for Thermal and Epithermal Neutrons

Download or read book A New Position sensitive Detector for Thermal and Epithermal Neutrons written by Alan Paul Jeavons and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Neutron Detectors for Scattering Applications

Download or read book Neutron Detectors for Scattering Applications written by Yacouba Diawara and published by Springer Nature. This book was released on 2023-08-04 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the most common neutron detectors used in neutron scattering facilities and all of those in use at Oak Ridge National Lab. It starts describing the facilities, instruments and the critical detector parameters needed by various instruments. Then the key components of the 3He-based linear position-sensitive detectors as well as on their electronics, which require particular attention to signal processing and noise reduction, are introduced. One chapter is dedicated to the 3He alternatives where scintillators play a critical role. It also covers emerging neutron detection technologies including semiconductors, vacuum-based devices and their associated readouts, which will be required in the future for high rate and high-resolution neutron detectors. The authors explain the logic behind the choice of materials as well as the various constraints that neutron detectors must respect to be useful. Some of these constraints, such as efficiency and gamma-ray sensitivity are common to all neutron counters while others, like timing resolution, dynamic range, and peak counting rate, depend on the applications. The book guides experts, the nuclear science community, and young scholars through the physical processes and the required electronics in a way that is accessible for those not professionally involved in designing detector’s components and electronic circuits.

Book Energy Research Abstracts

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book International Workshop on Position Sensitive Neutron Detectors Status and Perspectives

Download or read book International Workshop on Position Sensitive Neutron Detectors Status and Perspectives written by International Workshop on Position Sensitive Neutron Detectors - Status and Perspectives and published by . This book was released on 2002 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Thermal neutron Detection Based on the Gas Electron Multiplier

Download or read book Thermal neutron Detection Based on the Gas Electron Multiplier written by T. L. Van Vuure and published by Delft University Press. This book was released on 2004-01-01 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a Ph.D. dissertation. For probing the structure and dynamics of matter at an atomic, molecular and mesoscopic level, elastic and inelastic neutron scattering, diffractometry, reflectometry and a variety of other neutron scattering methods are of utmost importance. For them the availability of highly efficient and fast large-area position-sensitive neutron detectors is a condition of growing importance. In particular, the upcoming third generation of neutron sources, consisting of high-intensity pulsed spallation neutron sources, in conjunction with current progress in neutron optics will increase the peak neutron flux at the spectrometers' samples positions by more than two orders of magnitude. Consequently, much faster detectors than presently available with improved background are required in order to take full advantage of these increased source strengths and us pulse widths. In addition, due to the higher neutron fluxes, longer flight paths and smaller samples can be used and if higher 'matched' spatial detector resolutions are available better lattice resolutions can be attained. The goal of the research described in this dissertation is to develop a thermal neutron detector that meets as many as possible of the requirements being formulated during the ongoing design of the third generation of neutron sources.

Book A Neutron Detector Having Uniform Sensitivity from 10 Kev to 3 Mev

Download or read book A Neutron Detector Having Uniform Sensitivity from 10 Kev to 3 Mev written by A. O. Hanson and published by . This book was released on 1947 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book High Precision Thermal Neutron Detectors

Download or read book High Precision Thermal Neutron Detectors written by and published by . This book was released on 1994 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional position sensitive detectors are indispensable in neutron diffraction experiments for determination of molecular and crystal structures in biology, solid-state physics and polymer chemistry. Some performance characteristics of these detectors are elementary and obvious, such as the position resolution, number of resolution elements, neutron detection efficiency, counting rate and sensitivity to gamma-ray background. High performance detectors are distinguished by more subtle characteristics such as the stability of the response (efficiency) versus position, stability of the recorded neutron positions, dynamic range, blooming or halo effects. While relatively few of them are needed around the world, these high performance devices are sophisticated and fairly complex; their development requires very specialized efforts. In this context, we describe here a program of detector development, based on 3He filled proportional chambers, which has been underway for some years at Brookhaven. Fundamental approaches and practical considerations are outlined that have resulted in a series of high performance detectors with the best known position resolution, position stability, uniformity of reliability over time of this type.