NFYK13013U Experimental X-ray Physics
MSc Programme in Nanoscience
MSc Programme in Physics
MSc Programme in Physics with a minor subject
X-rays are a remarkable tool in science: 20 Nobel prizes are based on the use of X-rays. With the recent development of synchrotron radiation sources (for Danish users primarily in Hamburg, Grenoble, Lund and near Zurich) the brilliance of X-ray sources has been increased by more than a billion times over the conventional X-ray tube! The purpose of this course is to prepare students, i.e. the scientists of the near future, to utilize this tool in physics, chemistry, biophysics, materials science, biology. Lectures are given on the basics of X-ray physics, exercises in the lab will provide "hands-on” experience. The course includes a visit to the synchrotron facility MAX IV in Lund, where students will experience the layout of synchrotron sources and a variety of instrumental facilities, a visit to Department of Geosciences and Natural Resource Management, where the students will have a lecture on crystallography followed by hands on exercises and a visit to the DTU Imaging center, where the students will have a first contact with imaging techniques. A lecture related to the industrial application of X-rays will also be given.
Skills
The student is expected to have the following skills after
completing this course:
- Describe the X-ray radiation in the wave characteristic, its interaction with electrons and to establish the equation for Thompson scattering.
- Explain the scattering of atoms and molecules, and to establish formulas for the related scattering function.
- Being able to explain how X-rays are produced in the laboratory and at synchrotron X-ray facilities using bending magnets, wigglers and undulators, as well as the different characteristics of each source.
- Explain the fundamental optical properties of X-ray radiation interaction with solids. The students must be able to deduce the refractive index of X-rays and based on physical principles to provide the Fresnel equation and the Snell’s law within the X-ray regime. Finally, the student must be able to deduce the reflectivity of sharp as well as rough surfaces and layered systems.
- Explain the properties of the main optical elements such as monochromator, refractive lens, multilayer and mirrors as well as to calculate the focal length of a refractive lens system.
- Explain the spatial conformation of particles as based on small-angle scattering and the structure of simple crystals based on X-ray diffraction. Further explain the relationship between the reciprocal lattice, the Miller index and diffraction. The student must also be able to calculate the structure factors and the reflection from simple systems, including two-dimensional systems and to describe the effect of thermal fluctuations of diffraction.
Explain the Ewald construction and powder diffraction
Knowledge
The course will describe the basic interaction between x-ray
radiation and materials going from Thomson scattering from free
electrons to the classical reciprocal space description of
scattering from crystal. A fair part of the course will contain a
discussion on new x-ray sources and the development of modern x-ray
components, including optics using the refractive properties of
materials. Finally, discussions of applications of X-rays will
include the Extended X-ray Absorption and phasing of structure
factors using anormalous scattering. The exercises will contain a
discussion of detectors and anode x-ray sources as well as x-ray
small-angle scattering. During the visit to MAX IV in Lund, we will
exploit the properties of synchtrotron radiation
Competences
The student will be familiar with the application of X-Ray
techniques in physics, chemistry, biophysics, materials science and
biology and have "hands on" lab experience. The student
will have insight into what type of information can be gained using
X-ray methods, where such facilities exists, and which components
are critical in the experiment.
See Absalon for final course material.
- Category
- Hours
- Lectures
- 35
- Preparation
- 105,5
- Practical exercises
- 30
- Exercises
- 35
- Exam
- 0,5
- Total
- 206,0
- Credit
- 7,5 ECTS
- Type of assessment
- Oral examination, 30 minutes (no preparation)
- Exam registration requirements
To participate in the oral exam the student must participate in at least 80% of the lab sessions and the written reports handed in during the course must have been approved.
- Aid
- Without aids
- Marking scale
- 7-point grading scale
- Censorship form
- No external censorship
Several internal examiners
- Re-exam
Same as ordinary exam.
If the student participated in the experiments during the course but the reports were not approved, it will be possible to hand in new reports no later than 2 weeks before the re-exam.
For a student who did not participate in the experiments it will not be possible to take the re-exam, and the student must follow the course again the following year.
Criteria for exam assesment
See learning outcome
Course information
- Language
- English
- Course code
- NFYK13013U
- Credit
- 7,5 ECTS
- Level
- Full Degree Master
- Duration
- 1 block
- Placement
- Block 3
- Schedule
- C
- Course capacity
- No limitation – unless you register in the late-registration period (BSc and MSc) or as a credit or single subject student.
Study board
- Study Board of Physics, Chemistry and Nanoscience
Contracting department
- The Niels Bohr Institute
Contracting faculty
- Faculty of Science
Course Coordinators
- Heloisa Nunes Bordallo (8-66737668657070734472666d326f7932686f)
Lecturers
Heloisa Nunes Bordallo, e-mail: bordallo@nbi.ku.dk
Jacob Judas Kain Kirkensgaard, e-mail: jjkk@food.ku.dk