Автор |
H F Cook |
Дата выпуска |
1952-08-01 |
dc.description |
Methods used to measure the complex dielectric constant of water and blood at frequencies from 1.7 × 10<sup>9</sup> to 2.4 × 10<sup>10</sup> c/s are described. The results obtained for water at temperatures between 0 and 60° C are given and analysed with relation to the Debye and the Cole-Cole dispersion equations. The possibility that the dispersion in water is characterized by a narrow spectrum of relaxation times is briefly discussed. The complex dielectric constant of whole human blood has been measured at temperatures between 15 and 35° C. The dispersion observed is attributed entirely to water relaxation. It is shown to fit the Debye dispersion equations if the effects of a frequency-independent ionic conductivity are allowed for. Comparison of the results for blood with those for water leads to approximate estimates of the erythrocyte intracellular ionic conductivity and haemoglobin hydration. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
A comparison of the dielectric behaviour of pure water and human blood at microwave frequencies |
Тип |
paper |
DOI |
10.1088/0508-3443/3/8/302 |
Print ISSN |
0508-3443 |
Журнал |
British Journal of Applied Physics |
Том |
3 |
Первая страница |
249 |
Последняя страница |
255 |
Аффилиация |
H F Cook; Department of Physics Applied to Medicine, The Middlesex Hospital, London, W.1 |
Выпуск |
8 |