Published June 1970
| Version v1
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Planar channeling observed by radiography
Description
Radiographies of crystals by means of channeled particles exhibit channeling patterns. The origin of these patterns is studied, The role played by planar channeling is demonstrated. It is shown that these patterns are local amplifications of the process generating the images of a crystal on the radiography. It is deduced that planar channeling plays a determining role in the formation of these images. An orientation chamber using transmitted planar channels is described. The orientation of very small grains in a polycrystal can be very easily obtained, (author)
Abstract (French)
Ce travail precise l'origine des figures de canalisation observees en canaligraphie. Il montre l'importance des sources quant a leur genese et confirme le role de la canalisation planaire quant a leur geometrie. Ainsi chaque type de figure peut etre associe a une orientation de grain de la lame polycristalline. D'autre part il est montre que les figures de canalisation ne sont que des amplifications locales du processus engendrant les images d'une lame polycristalline ou canaligraphie. On en deduit que la canalisation planaire joue un role primordial dans la formation des images canaligraphiques. Une chambre d'orientation cristalline, utilisant la canalisation planaire par transmission, est decrite. Elle permet d'orienter avec precision de petits cristaux de quelques dizaines de microns. (auteur)Files
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Additional details
Additional titles
- Original title (French)
- Canalisation planaire en canaligraphie
Identifiers
Publishing Information
- Imprint Pagination
- 111 p.
- Report number
- CEA-R--4027
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 45085873
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- ACCURACY; CHANNELING; COPPER; CRYSTAL DEFECTS; CRYSTAL LATTICES; GOLD; GRAIN ORIENTATION; GRAIN SIZE; IMAGES; INDUSTRIAL RADIOGRAPHY; MEASURING METHODS; METALLOGRAPHY; TUNGSTEN
- Descriptors DEC
- CRYSTAL STRUCTURE; ELEMENTS; MATERIALS TESTING; METALS; MICROSTRUCTURE; NONDESTRUCTIVE TESTING; ORIENTATION; REFRACTORY METALS; SIZE; TESTING; TRANSITION ELEMENTS
Optional Information
- Notes
- 41 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/