A neutron may pass by a nucleus with a probability determined by the nuclear interaction distance, or be absorbed, or undergo scattering that may be either coherent or incoherent. The interference effects in coherent scattering can be computed via the coherent scattering length of neutrons, being proportional to the amplitude of the spherical scattered waves according to Huygens–Fresnel theory. This scattering length varies by isotope (and by element as the weighted arithmetic mean over the constituent isotopes) in a way that appears random, whereas the X-ray scattering length is just the product of atomic number and Thomson scattering length, thus monotonically increasing with atomic number. The scattering length may be either positive or negative. The scattering cross-section is equal to the square of the scattering length multiplied by 4π, i.e. the area of a circle with radius twice the scattering length. In some cases, as with titanium and nickel, it is possible to mix isotopes of an element whose lengths are of opposite signs to give a net scattering length of zero, in which case coherent scattering will not occur at all, while for vanadium already the opposite signs of the only naturally occurring isotope's two spin configurations give a near cancellation. However, neutrons will still undergo strong incoherent scattering in these materials. There is a large difference in scattering length between protium (-0.374) and deuterium (0.667). By using heavy water as solvent and/or selective deuteration of the probed molecule (exchanging the naturally occurring protium by deuterium) this difference can be leveraged in order to image the hydrogen configuration in organic matter, which is nearly impossible with X-rays due to their small sensitivity to hydrogen's single electron. On the other hand, neutron scattering studies of hydrogen-containing samples often suffer from the strong incoherent scattering of natural hydrogen. More comprehensive data is available from NIST and Atominstitut of Vienna. (Wikipedia).
Particle Physics (31 of 41) What is a Photon? 15. Mie Scattering - Radar Cross Section
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the graph of the principle of Mie scattering of particles the size of 1/10 of a wavelength to 1 wavelength. Next video in the Particle Physics series can be seen at: http://youtu.be/mvFp20Bpz
From playlist PHYSICS 65 PARTICLE PHYSICS
Particle Physics (29 of 41) What is a Photon? 13. Mie Scattering
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Mie scattering of photons scattering off large particles. Next video in the Particle Physics series can be seen at: http://youtu.be/4Lyf2zBSlCo
From playlist PHYSICS 65 PARTICLE PHYSICS
Particle Physics (30 of 41) What is a Photon? 14. Mie Scattering (Continued 2)
Visit http://ilectureonline.com for more math and science lectures! In this video I will compare Rayleigh's, Mie, and optical scattering. Next video in the Particle Physics series can be seen at: http://youtu.be/ds_JYBjv2g8
From playlist PHYSICS 65 PARTICLE PHYSICS
Teach Astronomy - Properties of Neutron Stars
http://www.teachastronomy.com/ Neutron stars are truly remarkable objects. Think of something with the mass of the Sun, normally one and a half million kilometers across, compressed down to the size of a small asteroid, about twenty kilometers across. Conservation of angular momentum dic
From playlist 16. Stars 3
Astronomy - Ch. 22: Neutron Star (6 of 17) The Structure of a Neutron Star
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will learn the structural density of a neutron star has 4 basic density regions. The inner core (0-3km) has a density=2 times the
From playlist ASTRONOMY 22 NEUTRON STARS & PULSARS
Physics - Optics: Single Slit Diffraction (10 of 15) Angular Size as a Function of Slit Width
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain numerically why the angular size is dependent on the slit width and wavelength. Next video in series: https://youtu.be/FW44jdfUMp4
From playlist PHYSICS 61 DIFFRACTION OF LIGHT
Physics - Modern Physics (7 of 26) Compton Scattering
Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to find the wavelength of the scattered photon using the Compton scattering equation.
From playlist MOST POPULAR VIDEOS
Physics - Ch 66 Quantum Mechanics 2: Basic Concepts (8 of 38) The Compton Effect: Scattering Angle
Visit http://ilectureonline.com for more math and science lectures! In this video I will explore how changes to the scattering angle (phi=0, 90, 180 degree) of the photon affect the change in the wavelength. Next video in this series can be seen at: https://youtu.be/RgGkmomXiS4
From playlist PHYSICS 66 - QUANTUM MECHANICS
Introduction to Neutron Scattering (Tutorial) by Bella Lake
PROGRAM FRUSTRATED METALS AND INSULATORS (HYBRID) ORGANIZERS: Federico Becca (University of Trieste, Italy), Subhro Bhattacharjee (ICTS-TIFR, India), Yasir Iqbal (IIT Madras, India), Bella Lake (Helmholtz-Zentrum Berlin für Materialien und Energie, Germany), Yogesh Singh (IISER Mohali, In
From playlist FRUSTRATED METALS AND INSULATORS (HYBRID, 2022)
Overview Lecture on Basics of Frustrated Magnets: ABC...of Neutron Scattering by Jason Gardner
Program The 2nd Asia Pacific Workshop on Quantum Magnetism ORGANIZERS: Subhro Bhattacharjee, Gang Chen, Zenji Hiroi, Ying-Jer Kao, SungBin Lee, Arnab Sen and Nic Shannon DATE: 29 November 2018 to 07 December 2018 VENUE: Ramanujan Lecture Hall, ICTS Bangalore Frustrated quantum magne
From playlist The 2nd Asia Pacific Workshop on Quantum Magnetism
MagLab Theory Winter School 2019: Collin Broholm
Topic: Fluctuating & disordered magnetism in insulating materials at low temperatures The National MagLab held it's seventh Theory Winter School in Tallahassee, FL from January 7th - 11th, 2019.
From playlist 2019 Theory Winter School
23. Solving the Neutron Diffusion Equation, and Criticality Relations
MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016 Instructor: Michael Short View the complete course: https://ocw.mit.edu/22-01F16 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP61FVzAxBP09w2FMQgknTOqu The hideous neutron transport equatio
From playlist MIT 22.01 Introduction to Nuclear Engineering and Ionizing Radiation, Fall 2016
Lec 2 | MIT 22.091 Nuclear Reactor Safety, Spring 2008
Lecture 2: Reactor physics review Instructor: Andrew Kadak View the complete course: http://ocw.mit.edu/22-091S08 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 22.091 Nuclear Reactor Safety, Spring 2008
Shape of the Nuclear Potential
Describing the shape of the nuclear potential over the range of the nuclear force. Explains why nucleons aren't crushed together.
From playlist Nuclear Physics
How Small Is It - 04 - Elementary Particles (4K)
Text - http://howfarawayisit.com/wp-content/uploads/2021/08/Elemetary-Particles-2021.pdf Music free version - https://www.youtube.com/watch?v=3y0VkM3onjM&list=PLpH1IDQEoE8TD269udtDqiKF94_eUPNMP website - https://howfarawayisit.com Wiki page https://howfarawayisit.fandom.com/wiki/Encycloped
From playlist How Small Is It
Physics - Optics: Diffraction Grating (3 of 7) Distances=? to 1st & 2nd Maxima
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the distances from the central maximum to the 1st and 2nd maximum. Next video in series: http://youtu.be/YzLk8NGlbgk
From playlist PHYSICS 61 DIFFRACTION OF LIGHT
How Small Is It - 03 - The Atom (4K)
Text - http://howfarawayisit.com/wp-content/uploads/2021/05/The-Atom-2021.pdf Music free version - https://www.youtube.com/watch?v=YngtPcBFDvI&list=PLpH1IDQEoE8So1F-wfy52t9afl6ivCRIs website - https://howfarawayisit.com Wiki page https://howfarawayisit.fandom.com/wiki/Encyclopedia_Howfaraw
From playlist How Small Is It
Advanced Quantum Physics Full Course | Quantum Mechanics Course
Quantum mechanics (QM; also known as #quantum #physics, quantum theory, the wave mechanical model, or #matrixmechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles. In t
From playlist Quantum Mechanics
New Experimental Searches for Dark Matter (Lecture 1) by Surjeet Rajendran
PROGRAM KAVLI ASIAN WINTER SCHOOL (KAWS) ON STRINGS, PARTICLES AND COSMOLOGY (ONLINE) ORGANIZERS Francesco Benini (SISSA, Italy), Bartek Czech (Tsinghua University, China), Dongmin Gang (Seoul National University, South Korea), Sungjay Lee (Korea Institute for Advanced Study, South Korea
From playlist Kavli Asian Winter School (KAWS) on Strings, Particles and Cosmology (ONLINE) - 2022
Physics - Modern Physics (8 of 26) Compton Scattering
Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to find the velocity of the scattered electron using the Compton scattering equation.
From playlist MODERN PHYSICS 2: ATOMIC AND NUCLEAR PHYSICS, PARTICLE PHYSICS