28 June 2015 to 3 July 2015
Africa/Johannesburg timezone
SAIP2015 Proceeding published on 17 July 2016

Unfolding the fast neutron fluence energy distribution of a NE230 deuterated liquid scintillator detector using the MAXED code

1 Jul 2015, 11:30
20m
Oral Presentation Track F - Applied Physics Applied

Speaker

Dr Mark Herbert (University of the Western Cape)

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

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

Yes

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

No

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

No

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>

Detailed knowledge of the neutron energy spectra is useful in basic research and applications. The overall procedure of measuring and unfolding the fast neutron fluence energy distribution with a NE230 deuterated liquid scintillator detector is described. The recoil deuteron pulse height distribution in air of a neutron beam of energy up to ~ 50 MeV produced by a 66 MeV proton beam on a graphite target at the iThemba LABS time-of-flight facility was measured. The neutron fluence energy distribution was obtained from the pulse height distribution by Bayesian unfolding with the code MAXED using a response matrix that was determined experimentally. The result obtained is in good agreement with the neutron fluence energy distribution of the graphite target measured with the NE230 scintillator using the time-of-flight method at the iThemba LABS time-of-flight facility.

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

N/A

Primary author

Dr Mark Herbert (University of the Western Cape)

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