| Автор | S A Knight |
| Автор | R L Erskine |
| Дата выпуска | 1965-09-01 |
| dc.description | The conversion of a 40 Mc/s Varian nuclear magnetic resonance spectrometer to 80 Mc/s operation is described. The increase in maximum field strength from 12 to 22.5 kG was achieved by the use of conical Permendur pole caps. The factors affecting pole-cap geometry are discussed. Sufficient field homogeneity for the production of high resolution 80 Mc/s hydrogen nuclear magnetic resonance spectra was achieved with Golay electric shim coils. Further stability of the magnetic field, enabling spectra to be recorded on precalibrated chart paper, was achieved by a double audio-frequency modulation technique. Notes are also given on the associated changes required to the electronic circuits. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Conversion of a Varian 40 Mc/s high resolution nuclear magnetic resonance spectrometer to 80 Mc/s operation |
| Тип | paper |
| DOI | 10.1088/0950-7671/42/9/301 |
| Print ISSN | 0950-7671 |
| Журнал | Journal of Scientific Instruments |
| Том | 42 |
| Первая страница | 669 |
| Последняя страница | 674 |
| Аффилиация | S A Knight; The British Petroleum Co. Ltd., Sunbury-on-Thames, Middlesex |
| Аффилиация | R L Erskine; The British Petroleum Co. Ltd., Sunbury-on-Thames, Middlesex |
| Выпуск | 9 |
