8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Depletion voltage measurements of the iThemba LABS segmented clover detector.

9 Jul 2013, 16:20
20m
Oral Presentation Track B - Nuclear, Particle and Radiation Physics NPRP

Speaker

Mr Jayson Easton (iThemba LABS and University of the Western Cape)

Abstract content <br> &nbsp; (Max 300 words)

J.L. Easton1,2, O. Shirinda1 , E.A. Lawrie1,T. D. Bucher1 , S.P. Noncolela1,2, N. Orce2,

1 iThemba LABS, PO Box 722, 7129 Somerset West, South Africa
2 University of the Western Cape, Privare Bag X17, 7535 Bellvile, South Africa

The measured depletion voltages of the four crystals of the iThemba LAB segmented clover detector was compared to the manufacturer specifications. We measured the depletion voltage by measuring the peak centroids and peak areas as a function of applied voltage. We had used three sources namely 137Cs, 60Co and 241Am. A reduced chi squared analysis was then used to infer depletion voltages. It was found that the depletion voltage was higher than the manufacturer specifications for all four crystals. The depletion voltages depend on the amount of the impurities in each crystal, which are very important for simulating correctly the gamma-ray interaction points inside the detector.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

yes

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

E.A. Lawrie1, elena@tlabs.ac.za

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

no

Primary author

Mr Jayson Easton (iThemba LABS and University of the Western Cape)

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