3-7 July 2017
Africa/Johannesburg timezone

LaBr<sub>text3</sub> detector array for fast timing measurements

5 Jul 2017, 17:10
1h 50m
3rd and 4th floor passages (Engineering Building 51)

3rd and 4th floor passages

Engineering Building 51

Board: 51
Poster Presentation Track B - Nuclear, Particle and Radiation Physics Poster Session 2

Speaker

Mr Msebi Lumkile ((University of Westren Cape))

Description

Measurements of lifetime and transition moments for excited nuclear levels are fundamentally important in experimental nuclear physics since they reveal crucial properties of nuclear structure. Recently a fast timing array has been assembled at iThemba LABS, Cape Town consisting of eight 2" by 2" LaBrtext3 (Ce) detectors.  Several experimental runs have been done with 22 Na and 60 Co sources to effect calibration and efficiency measurements. A radioactive 67 Ga source, produced at iThemba LABS, was placed at the centre 240mm equidistant from each detector in our fast timing array. The data collected was used to better understand fast timing techniques. We present the present the results of efficiency measurements and some lifetime measurements for the 67Ga radioactive source. More exciting work will done through the fast timing array in a quest to comprehend the population mechanism of excited 0+ states. Among the work to be carried out through this array, includes 0-degree measurements that are beneficial in suppression of high angular momentum values and selection of low spin states. All these endeavours will seek to unveil the quadrupole moment of nuclei and their intrinsic behavior .

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

YES

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

PhD

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

Yes

Primary author

Mr Msebi Lumkile ((University of Westren Cape))

Co-authors

Mr Ingeberg Vetle (University of Oslo) Dr Jones Pete (iThemba Labs) Dr Sharpey-Schafer John (University of Western Cape)

Presentation Materials