Fundamental Physics with Cold Neutron Beams
Fundamental Physics with Cold Neutron Beams

Author: Kyle Brandon Grammer

Publisher:

Published: 2016

Total Pages: 224

ISBN-13:

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The neutron exhibits rich physics both as a tool for studying materials, particle and nuclear physics, as well as the object of experimental study. The neutron lifetime is an important input to Big Bang Nucleosynthesis models and is currently known only to approximately 0.3% with the most precise measurements from two different experimental techniques in disagreement by more than 3 [sigma]. Parity violation has been the subject of study since its discovery in 1957. Parity violation experiments provide access to studying the hadronic weak interaction, which is otherwise suppressed by several orders of magnitude below that of the strong interaction. It is the hadronic weak interaction that the NPDGamma experiment accesses via studying the asymmetry in gamma ray emission from the capture of polarized neutrons on liquid parahydrogen. Finally, as part of the NPDGamma experiment, the opportunity arose to use the well known and characterized apparatus for conducting a measurement of the liquid parahydrogen scattering cross section which has important implications in the design of neutron sources and moderators at cold neutron research facilities.

Fundamental Physics with Pulsed Neutron Beams
Fundamental Physics with Pulsed Neutron Beams

Author: Christopher R. Gould

Publisher: World Scientific

Published: 2001

Total Pages: 268

ISBN-13: 9810246676

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Low energy neutron beams are used to address many questions in nuclear physics, particle physics and astrophysics. The scientific issues include elucidating the nature of time reversal noninvariance; understanding the origin of the baryon asymmetry in the Universe; describing the weak interaction between quarks and between nucleons; understanding the origin of the elements in stellar and big bang nucleosynthesis.This book summarizes how spallation neutron sources work and discuss the advantages of pulsed beams in reducing systematic errors in precision measurements. It also describes recent breakthroughs in ultracold neutron production, together with the physics that will be addressed by the new generation of intense neutron sources.

Ultra-Cold Neutrons
Ultra-Cold Neutrons

Author: R. Golub

Publisher: Routledge

Published: 2017-07-12

Total Pages: 328

ISBN-13: 1351406396

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Ultra-Cold Neutrons is a complete, self-contained introduction and review of the field of ultra-cold neutron (UCN) physics. Over the last two decades, developments in UCN technology include the storage of UCN in material and magnetic bottles for time periods limited only by the beta decay rate of the free neutron. This capability has opened up the possibility of a wide range of applications in the fields of both fundamental and condensed state physics. The book explores some of these applications, such as the search for the electric dipole moment of the neutron that constitutes the most sensitive test of time reversal invariance yet devised. The book is suitable as an introduction to the field for research students, as a useful compendium of results and techniques for researchers, and is of general interest to nonspecialists in other areas of physics such as neutron, atomic, and fundamental physics and neutron scattering.

Advances in Neutron Optics
Advances in Neutron Optics

Author: Maria L. Calvo

Publisher: CRC Press

Published: 2019-12-05

Total Pages: 253

ISBN-13: 1000727602

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Neutron optics studies the interactions of a beam of slow neutrons with matter. This book updates various advances on neutron optics. There will be a focus on the very active topics of neutron imaging (NI) and neutron spin optics (NSO). The book will also present applications of neutron beams in biomedicine, such as Boron Neutron Capture Therapy (BNCT) and related techniques. Features: Discusses diffraction and interference of slow neutrons, including computational approaches Reviews neutron imaging (NI) and neutron spin optics (NSO) Treats two major sources of slow neutron beams: (1) fission reactions at nuclear reactors and (2) collisions in particle accelerators (small ones, spallation sources) of charged particle beams with targets of heavy atoms Selects subjects on fundamental quantum aspects of slow neutrons and on confined propagation and waveguiding thereof Updates slow neutron beams and BNCT

Ultracold Neutrons
Ultracold Neutrons

Author: Albert Steyerl

Publisher: World Scientific

Published: 2020-05-26

Total Pages: 500

ISBN-13: 9811212724

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Ultracold Neutrons is a guide to a fascinating topic. It describes how a simple new idea in experimental neutron physics has changed the landscape of what is often called 'fundamental physics.' Ultracold neutrons (UCNs) are neutrons moving at the low speed of a bicycle rider. They were produced for the first time 50 years ago (in 1968) and are distinguished from ordinary neutrons with much higher energies by their ability to be confined in 'neutron bottles' for durations up to several hundred seconds. This is possible since they are reflected back and forth from the container walls many thousands of times with very little loss. As a result of these long observation times, their properties and interactions with the environment can be studied with superb precision.Directed towards a general readership, this book is an excellent introduction to a field of research that is not highly specialized but touches on many aspects of our physical world, classical as well as quantum mechanical.

Fundamental Properties of the Neutron
Fundamental Properties of the Neutron

Author: I︠U︡riĭ Andreevich Aleksandrov

Publisher:

Published: 1992

Total Pages: 232

ISBN-13:

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The neutron is an elementary particle that has been extensively studied both theoretically and experimentally. This book reviews and analyses the results of the mainly experimental research on the neutron and rationalizes what is known so far about its intrinsic properties. The book covers topics that have not previously been dealt with in detail, including the gravitational properties of the neutron, precise determination of its mass, beta-decay, and its electromagnetic properties. This translation is an updated version of the original Russian text and also covers the more recent advances made during the past 7-8 years, including the application of methods based on the storage of ultra-cold neutrons to the study of beta-decay, new precise measurement of the mass of the neutron, and confirmation of modern theories of the internal structure of the neutron.