Related Experiment Video
Updated: May 17, 2026

11:44
Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
Published on: August 15, 2014
Simple suppression of radiation damping.
1Department of Chemistry, Kent State University, Kent, OH 44240, USA. akhitrin@kent.edu
Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|October 23, 2012
Summary
A new pulse sequence effectively suppresses radiation damping in Nuclear Magnetic Resonance (NMR) spectra, even with numerous strong resonances. This method offers a simple solution for clearer NMR data acquisition and advanced experiments.
Area of Science:
- Nuclear Magnetic Resonance (NMR) Spectroscopy
- Physical Chemistry
- Spectroscopic Techniques
Background:
- Radiation damping causes significant line-broadening and frequency shifts in NMR spectra.
- Existing suppression techniques often require specialized hardware or are limited to spectra with few strong resonances.
Purpose of the Study:
- To introduce a straightforward pulse sequence for suppressing radiation damping.
- To address the challenge of radiation damping in NMR spectra containing numerous strong resonances.
Main Methods:
- Development and application of a novel, simple pulse sequence.
- Testing the sequence's efficacy in suppressing radiation damping effects.
Main Results:
- The proposed pulse sequence effectively suppresses radiation damping.
- The method is suitable for NMR spectra with many strong resonances.
- The sequence can be used independently or as part of more complex NMR experiments.
Conclusions:
- The developed pulse sequence provides a versatile and accessible solution for radiation damping suppression in NMR.
- This technique enhances spectral clarity and facilitates advanced NMR applications.
Related Concept Videos
Magnetic Damping
Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...
Radiation: Applications
The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
The average...
Types of Damping
If the amount of damping in a system is gradually increased, the period and frequency start to become affected because damping opposes, and hence slows, the back and forth motion (the net force is smaller in both directions). If there is a very large amount of damping, the system does not even oscillate; instead, it slowly moves toward equilibrium. In brief, an overdamped system moves slowly towards equilibrium, whereas an underdamped system moves quickly to equilibrium but will oscillate about...
Damped Oscillations
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...
Although friction and other non-conservative...
Nuclear Power
Controlled nuclear fission reactions are used to generate electricity. Any nuclear reactor that produces power via the fission of uranium or plutonium by bombardment with neutrons has six components: nuclear fuel consisting of fissionable material, a nuclear moderator, a neutron source, control rods, reactor coolant, and a shield and containment system.
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Nuclear Fuels
Nuclear fuel consists of a fissile isotope, such as uranium-235, which must be present in sufficient quantity to provide a...
Absorption of Radiation
The rate of heat transfer by emitted radiation is described by the Stefan-Boltzmann law of radiation:
