Small-angle X-ray scattering

Small-angle scattering

Small-angle X-ray scattering (SAXS) is a small-angle scattering technique by which nanoscale density differences in a sample can be quantified. This means that it can determine nanoparticle size distributions, resolve the size and shape of (monodisperse) macromolecules, determine pore sizes, characteristic distances of partially ordered materials, and much more. This is achieved by analyzing the elastic scattering behaviour of X-rays when travelling through the material, recording their scattering at small angles (typically 0.1 – 10°, hence the "Small-angle" in its name). It belongs to the family of small-angle scattering (SAS) techniques along with small-angle neutron scattering, and is typically done using hard X-rays with a wavelength of 0.07 – 0.2 nm.. Depending on the angular range in which a clear scattering signal can be recorded, SAXS is capable of delivering structural information of dimensions between 1 and 100 nm, and of repeat distances in partially ordered systems of up to 150 nm. USAXS (ultra-small angle X-ray scattering) can resolve even larger dimensions, as the smaller the recorded angle, the larger the object dimensions that are probed. SAXS and USAXS belong to a family of X-ray scattering techniques that are used in the characterization of materials. In the case of biological macromolecules such as proteins, the advantage of SAXS over crystallography is that a crystalline sample is not needed. Furthermore, the properties of SAXS allow investigation of conformational diversity in these molecules. Nuclear magnetic resonance spectroscopy methods encounter problems with macromolecules of higher molecular mass (> 30–40 kDa). However, owing to the random orientation of dissolved or partially ordered molecules, the spatial averaging leads to a loss of information in SAXS compared to crystallography. (Wikipedia).

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

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 - Optics: Circular Aperture - Angle of Resolution (6 of 6) Rayleigh's Criterion

Visit http://ilectureonline.com for more math and science lectures! In this video I will find how Rayleigh's criterion affects the angle of resolution for circular aperture. First video in series: http://youtu.be/hlrHgVdpr1k

From playlist PHYSICS 61 DIFFRACTION OF LIGHT

What is Compton Scattering?

This video provides a detailed overview of Compton Scattering and its role in the development of quantum physics. The photon model of light is used to explain the Compton shift in wavelength of scattered x-rays by electrons. The principles of energy and momentum conservation are used to ca

From playlist Quantum Physics

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

Physics - Ch 66 Quantum Mechanics 2: Basic Concepts (10 of 38) The Compton Effect: Ex. (Part 1)

Visit http://ilectureonline.com for more math and science lectures! In this video I will calculate the outgoing wavelength of the scattered photons, (lambda)'=?, of x-rays of 5pm by electrons with phi=0, 45, and 90 degrees (Part 1). Next video in this series can be seen at: https://youtu

From playlist PHYSICS 66 - QUANTUM MECHANICS

Light and Optics 7_14 Thin Film Interference

The interefernce caused by reflection with a thin film.

From playlist Physics - Light and Optics

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

Physics - Optics: Circular Aperture - Angle of Resolution (1 of 6) Introduction

Visit http://ilectureonline.com for more math and science lectures! In this video I will introduce the diffraction pattern of a circular aperture. Next video in series: http://youtu.be/f2Wuo--pdoE

From playlist PHYSICS 61 DIFFRACTION OF LIGHT

Part 3: Amplitude and Phase Contrast 2016 - G. Jensen

From playlist Getting Started in Cryo-EM

Seeing Things in a Different Light: How X-ray crystallography revealed the structure of everything

X-Ray Crystallography might seem like an obscure, even unheard of field of research; however structural analysis has played a part in almost every major scientific field since its discovery 100 years ago by William Henry, and William Lawrence Bragg. In this Friday Evening Discourse at the

From playlist Celebrating Crystallography

Mod-01 Lec-4 Diffraction Methods For Crystal Structures

Condensed Matter Physics by Prof. G. Rangarajan, Department of Physics, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

From playlist NPTEL: Condensed Matter Physics - CosmoLearning.com Physics Course

Physics 3C. Lecture 21.

UCI Physics 3C: Basic Physics III (Fall 2013) Lec 21. Basic Physics III View the complete course: http://ocw.uci.edu/courses/physics_3c_basic_physics_iii.html Instructor: Michael Smy, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://ocw.uci.edu/info More courses at http://ocw

From playlist Physics 3C: Basic Physics III

how we know light has momentum

Compton scattering is the effect of photons of rays scattering electrons, and provided evidence for the. particle nature of light. This video covers an explanation and the mathematical relationship that Arthur Compton derived by assuming a quantum nature and conservations laws. See the D

From playlist Modern Physics

Chris Jacobsen - Coherent x-ray imaging: how big can we go small? - IPAM at UCLA

Recorded 12 October 2022. Chris Jacobsen of the Argonne National Laboratory/Northwestern University presents "Coherent x-ray imaging: how big can we go small?" at IPAM's Diffractive Imaging with Phase Retrieval Workshop. Abstract: Coherent x-ray imaging methods such as ptychography are dev

From playlist 2022 Diffractive Imaging with Phase Retrieval - - Computational Microscopy

Particle Physics (25 of 41) What is a Photon? 9. Compton Scattering

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain Compton scattering of a photon colliding with an electron and proton. Next video in the Particle Physics series can be seen at: http://youtu.be/AjqFr6RjZSQ

From playlist PHYSICS 65 PARTICLE PHYSICS

Physics - Ch 66 Quantum Mechanics 2: Basic Concepts (9 of 38) The Compton Wavelength

Visit http://ilectureonline.com for more math and science lectures! In this video I will explore how changes to the rest mass (m0=electron, proton) affect the Compton Wavelength (h/[(m0)(c)]) part of the Compton Effect equation. Next video in this series can be seen at: https://youtu.be/

From playlist PHYSICS 66 - QUANTUM MECHANICS

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

Introduction to Solid State Physics, Lecture 9: Scattering Experiments (X-ray Diffraction)

Upper-level undergraduate course taught at the University of Pittsburgh in the Fall 2015 semester by Sergey Frolov. The course is based on Steven Simon's "Oxford Solid State Basics" textbook. Lectures recorded using Panopto, to see them in Panopto viewer follow this link: https://pitt.host

From playlist Introduction to Solid State Physics

Small-angle X-ray scattering

Related pages