Methods and apparatus for distinguishing between bodies according to their translucency
Patent
·
OSTI ID:4371452
Relatively opaque and relatively translucent bodies are distinguished from one another by illuminating a limited area of the surface of each body and determining the amount of light emitted from the surface of the body outside the limited area, the amount of such emitted light increasing with increasing translucency of the body. A coaxial light-transmitting and light-receiving arrangement is preferred, using a common lens, and using adjacent fibre-optic transmittmg and receiving surfaces. The invention has one application in distinguishing between ore fragments which comprise a translucent matrix (e.g., quartz or quartzite) and greater or lesser amounts respectively of an opaque mineral (e.g., uraninite) non-uniformly dispersed therein, and can be applied to physically separate the fragments according to their mineral content. (Official Gazette)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-29-018260
- OSTI ID:
- 4371452
- Report Number(s):
- US 3786266
- Country of Publication:
- United Kingdom
- Language:
- English
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