| 摘要 |
PCT No. PCT/GB88/00187 Sec. 371 Date Nov. 15, 1988 Sec. 102(e) Date Nov. 15, 1988 PCT Filed Mar. 10, 1988 PCT Pub. No. WO88/07213 PCT Pub. Date Sep. 22, 1988.A method for detecting diamonds in locations which are not easily accessible comprises irradiating material suspected of containing diamonds by means adapted for access to the location, collecting the resultant scattered Raman radiation by means adapted for access to the location and filtering and sensing the radiation to produce a signal whenever radiation characteristic of diamonds is sensed whereby the absence or the presence of diamonds in the location is indicated. |
