ESR Microscopic Imaging with Microfabricated Field Gradient Coils
- 1 June 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (6A) , L929-931
- https://doi.org/10.1143/jjap.26.l929
Abstract
A high microscopic resolution of electron spin resonance (ESR) imaging was obtained by inserting small field gradient coils into a microwave cavity. Anti-Helmholtz coil pairs with diameters between 0.5 mm and 4 mm and spacing distances of 1 mm-3 mm produced a field gradient of 20 T/m (2 kG/cm) at a pin-hole region. The resolution of less than 1 µm can be obtained for the signal of DPPH particles. One dimensional imaging was tried using the colloid signal of NaCl irradiated by X-rays to indicate the possibility of microdosimetry.Keywords
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