dc.contributor.author |
Bappu, M. K. V |
|
dc.date.accessioned |
2009-05-20T13:57:25Z |
|
dc.date.available |
2009-05-20T13:57:25Z |
|
dc.date.issued |
1952 |
|
dc.identifier.citation |
Indian Journal of Physics, Vol. 26, No.1, pp. 1 - 14 |
en |
dc.identifier.uri |
http://hdl.handle.net/2248/4482 |
|
dc.description |
Open Access |
en |
dc.description.abstract |
In this paper a detailed study is made of the absorption of light in the visible region by amethyst quartz. It is found that in the visible region, an absorption band, the so called F-band appears, which decreases in intensity at high temperature the maximum also shifts ton~ardslo nger u~arelengths; but the number of colour cenires remain constant till about zoirEC. At higher fen~peratures these centres, which are responsible for the absorption, are destroyed by heat. When the crystal is exposed to radiation absorbed by the F band, a new F'-band appears. The facts reveal that the coloration is due fo exposure to some penetrating radiations. |
|
dc.language.iso |
en |
en |
dc.publisher |
Indian Association for the Cultivation of Science |
en |
dc.rights |
© Indian Association for the Cultivation of Science |
en |
dc.subject |
Spectroscopic Study |
en |
dc.subject |
Amethyst Quartz |
|
dc.subject |
Coloured Quartz |
|
dc.title |
Spectroscopic study of amethyst quartz in the visible region |
en |
dc.type |
Article |
en |