Title :
260 GHz quasioptical setup for EPR and DNP experiments on the 9.2 Tesla DNP/NMR/EPR spectrometer
Author :
Denysenkov, V. ; Kiseliov, V.K. ; Prandolini, M. ; Gafurov, M. ; Krahn, A. ; Engelke, F. ; Bezborodov, V.I. ; Kulesho, Ye M. ; Nesterov, P.K. ; Yanovsky, M.S. ; Prisner, T.F.
Author_Institution :
Inst. for Phys. & Theor. Chem., Goethe-Univ., Frankfurt am Main, Germany
Abstract :
This paper accomplish in-situ dynamic nuclear polarization (DNP) on aqueous solutions at room temperature, and at high magnetic field of 9.2 Tesla, to enhance high resolution NMR signals. For this purpose a 400 MHz Bruker NMR spectrometer was extended with a quasi-optical setup (QOS) including a DNP probehead in which a sample under investigation is placed, and a microwave bridge operating at 260 GHz. The setup is designed for CW EPR measurements, and for pumping of electron spin transitions of the sample.
Keywords :
EPR spectrometers; NMR spectrometers; electron spin; DNP spectrometer; EPR spectrometer; NMR spectrometer; aqueous solutions; dynamic nuclear polarization; electron spin transitions; frequency 260 GHz; quasi-optical setup; temperature 293 K to 298 K; Flanges; Mirrors; Monitoring; Nuclear magnetic resonance; Radio frequency; Switches;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW), 2010 International Kharkov Symposium on
Conference_Location :
Kharkiv
Print_ISBN :
978-1-4244-7900-9
DOI :
10.1109/MSMW.2010.5545987
