7-11 July 2014
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=16&confId=34"><font color=#0000ff>SAIP2014 Proceedings published on 17 April 2015</font></a>

Overview of the Mineral-PET run of mine Diamond bearing rock sorter

8 Jul 2014, 17:10
1h 50m
D Ring ground level

D Ring ground level

Board: F.309
Poster Presentation Track F - Applied Physics Poster1


Mr Marius Tchonang Pokaha (University of Johannesburg)

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Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

Mineral-PET is a technology for the sorting of diamond bearing rock (kimberlite ore) based on a mineral analogue of the well-known medical Positron Emission Tomography (PET) imaging technique. The naturally occurring carbon in kimberlite needs to be activated via photonuclear transmutation before it can be imaged. For the R&D phase of the project, a technology demonstrator has been built. This is a planar PET array built around a conveyor belt using kimberlite phantoms. The phantoms consist of blocks of cement with the radioactive material (Na-22) uniformly distributed throughout it to simulate the homogenous background radiation from various non-diamond PET emitters. Diamonds are modeled in the phantom by the inclusion of a localized “hot-spot” of Na-22. This system has been used to benchmark computational simulations and to explore the physics issues for the specification of a pilot scale plant at a mine. The review will provide new results and updates on the performance and outlook for Mineral-PET.

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Main supervisor (name and email)<br>and his / her institution

Prof Simon Connell, shconnell@uj.ac.za

Primary author

Mr Marius Tchonang Pokaha (University of Johannesburg)


Mr Martin Cook (University of Johannesburg) Prof. Simon Connell (University of Johannesburg)

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