Abstract
A system for the generation of short, powerful, and agile pulses of current drive is described. The system is made of several submodules, most of them "home-made" and is capable of producing current pulses ranging from 9 A for 150 ns pulses to 94 A for 1400 ns pulse duration, when connected to a nominal 0.6 Ω/2.75 μH coil. The amplitude of successive current pulses can be updated in the ∼μs time scale. Such capabilities are very useful in the field of electron spin resonance microimaging and for the measurements of diffusion by electron spin resonance. A variant of the system can also be used for the nuclear magnetic resonance imaging of samples located in grossly inhomogeneous magnetic field or for solid-state nuclear magnetic resonance imaging. Details of the system electronic design as well as some representative experimental results are provided.
| Original language | English |
|---|---|
| Pages (from-to) | 119-127 |
| Number of pages | 9 |
| Journal | Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering |
| Volume | 39 B |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 2011 |
Keywords
- EPR
- ESR
- Gradients
- Imaging
- NMR
All Science Journal Classification (ASJC) codes
- Radiological and Ultrasound Technology
- Radiology Nuclear Medicine and imaging
- Spectroscopy
- Physical and Theoretical Chemistry