Publications

A few recent publications:

G.N. Tematio, T. Salagaram, A.M. Ukpong, H.E. Hailouf & K.O. Obodo, “Field-driven electronic and topological modulation in the Weyl semimetal NbP,” Journal of Physics: Condensed Matter 38 (2026) 1-15. 

G.P.N. Tematio, A.M. Ukpong, T. Salagaram, H.E. Hailouf & K.O. Obodo, “Strain and electric field control of topological phases in SrSi₂ and CoSi: A first-principles and model Hamiltonian study,” Materials Chemistry and Physics 359 (2026) 1-14. 

H. Fourie, J. Bolcaen, S.W. Peterson & J.R. Zeevaart, “Absorbed doses to single cells from radionuclides Tb-161, Pd-103, Pd-109, and Er-165 in different cellular compartments and neighbour cells,” Physics in Medicine and Biology 71 (2026) 1-10. 

A. Buffler, M. van Heerden & T.W. Leadbeater, “Recent developments at PEPT Cape Town positron emission particle tracking facility,” International Journal of Modern Physics E 34 (2025) 1-9. 

E. Fairall, T. Hutton, P. Maleka & A. Buffler, “Quantification of neutron dose for the ⁷Li(p,n)⁷Be reaction at E_p = 66 MeV at the iThemba LABS high-energy neutron facility,” Radiation Measurements 189 (2025) 1-8.

E. Pyurbeeva, M.D. Blumenthal, J.A. Mol, H. Howe, H.E. Beere, T. Mitchell, D.A. Ritchie & M. Pepper, “Landau level single-electron pumping,” Quantum Science and Technology 10 (2025) 045013.

H. Fourie, J. Bolcaen, S.W. Peterson & J. Zeevaart, “Auger radioisotopes as the next frontier in therapeutic Nuclear Medicine: A micro-dosimetry study comparing membrane and nuclear doses between different Auger emitting radionuclides,” Nuclear Medicine and Biology 150 (2025) 381-381.

S. Mhlongo, A. Buffler, T. Hutton & N.B. Ndabeni, “Elemental characterization of bulk materials using fast neutron beams at the n-lab, University of Cape Town,” Nuclear Science and Technology Open Research 3 (2025) 1-13. 

T. Hutton, A. Buffler, M.B. Kidson, E. Fairall & R. Babut, “Neutron spectrometry in space and aviation with a compact scintillator-based detector,” Applied Radiation and Isotopes 225 (2025) 1-8. 

V.R. Sharma, Z. Jiang, S. Mossahebi, E. Shakeri, A. Chalise, M.K. Gobbert, S.W. Peterson, J.C. Polf & L. Ren, “Modeling prompt gamma (PG) emission, detection and imaging in real patient anatomy using a novel Compton camera for dose verification in proton therapy,” Physics in Medicine and Biology 70 (2025) 1-16. 

W.Y. Cherif, S. Damache, S. Ouichaoui, J. Kiener, E.A. Lawrie, J.J. Lawrie, V. Tatischeff, A. Belhout, D. Moussa, P. Papka, H. Benhabiles-Mezhoud, T.D. Bucher, et. al. “Optical model potential parameter optimization for nucleon-induced reactions on 40Ca: Implications on γ-ray production cross sections for residual Argon nuclei,” EPJ Web of Conferences 322 (2025) 1-3. 

A. Buffler, T. Hutton, E. Jarvie & R. Babut, “A compact scintillator-based detector for high energy neutron spectrometry,” Radiation Physics and Chemistry 220 (2024) 111698. 

H. U., J. Jeyasugiththan, S. Viswakula, D.M. Satharasinghe, T. Amalaraj, M. Costa, A.M.C. Kumarihami, A. Pallewatte & S.W. Peterson, “Evaluation of automatic tube current modulation in a CT scanner using a customised homogeneous phantom,” Biomedical Physics and Engineering Express10 (2024) 1-15. 

M. Perin, S.W. Peterson, J.P. Shock, P. Brito-Parada, D. Mesa & K.E. Cole, “Increasing the location rate of positron emission particle tracking (PEPT) measurements for froth flotation,” Minerals Engineering 219 (2024) 1-13.

N. Hanief, M.D. Blumenthal, H. Howe, H.E. Beere, T. Mitchell, D.A. Ritchie & M. Pepper, “Comparative study of low magnetic field effects in finger-finger and finger-split gate single electron pumps,” Scientific African 24 (2024) e02150

T. Hutton & A. Buffler, “Characterisation of neutron fields at the n-lab, a fast neutron facility at the University of Cape Town,” Applied Radiation and Isotopes 206 (2024) 111196. 

T.W. Leadbeater, A. Buffler, M. van Heerden, A. Camroodien & D. Steyn, “Development of Tracer Particles for Positron Emission Particle Tracking,” Nuclear Science and Engineering 198 (2024) 121-137. 

W.Z. Xu, D.P. Sun, S.Y. Wang, R.A. Bark, H. Hua, J. Meng, S.Q. Zhang, T.D. Bucher, et al. “First observation of band structure in 76As: Possible chirality and octupole correlations,” Physical Review C 109 (2024) 1-8. 

A. Buffler, A. Comrie & T. Hutton, “A compact direction-sensitive fast neutron spectrometer,” Nuclear Instruments and Methods in Physics Research Section A 1052 (2023) 1-6.

A. Buffler, R. Babut, V. Gressier, T. Hutton, T. Leadbeater, M. Petit & C. Sole, “Digital data acquisition for fast neutron metrology: defining the digital light output parameter,” Journal of Physics: Conference Series2586 (2023) 012120. 

E. Jarvie, A. Buffler, T. Hutton, Z. Ndabeni, R. Nndanganeni & C. Vandevoorde, “Measuring response functions for a new compact neutron spectrometer,” Journal of Physics: Conference Series 2586 (2023) 012121.

M. Perin, K.E. Cole, M. van Heerden, A. Buffler, Y.Y. Lin, J. Zhang, P.R. Brito-Parada, J.P. Shock & S.W. Peterson, “On the Ability of Positron Emission Particle Tracking (PEPT) to Track Turbulent Flow Paths with Monte Carlo Simulations in GATE,” Applied Sciences 13 (2023) 6690. 

M. van Heerden, A. Buffler, K. Cole & T. Leadbeater, “Density-modified tracers for positron emission particle tracking,” Journal of Physics: Conference Series 2586 (2023) ****. 

M. Zhou, O. Kökkılıç, D. Boucher, M. Lepage, T.W. Leadbeater, R. Langlois & K.E. Waters, “Investigation of Particle Motion in a Dry Separation Fluidized Bed Using PEPT,” Minerals 13 (2023) 254 . 

M.D. Blumenthal, D. Mahony, S. Ahmad, D. Gouveia, H. Howe, H.E. Beere, T. Mitchel, D.A. Ritchie & M. Pepper, “Multiple electron pumping,” EPJ Quantum Technology 10 (2023) 46.

P.E. Garrett, L. Makhathini, R.A. Bark, T.R. Rodríguez, S. Valbuena, V. Bildstein, T.D. Bucher, C. Burbadge, R. Dubey, T. Faestermann et al., “Investigations of the structures of the Ru isotopes: ⁹⁸Ru,” Journal of Physics: Conference Series 2586 (2023) 012085. 

R. van der Merwe, S. Peterson, A. Buffler, M. van Heerden, N. Hyslop, T. Hutton & T. Leadbeater, “Micro-scale particle tracking using hybrid detectors,” Journal of Physics: Conference Series 2586 (2023) 012123.

S. Hart, P. Jones, L. Pellegri & S. Peterson, “A hybrid CZT-LaBr3:Ce Compton camera system for improving proton therapy imaging,” Journal of Physics: Conference Series 2586 (2023) 012130. 

S. Mhlongo, A. Buffler, T. Hutton & Z. Ndabeni, “A multimodal neutron-based technique for the elemental analysis of materials in bulk,” Journal of Physics: Conference Series 2586 (2023) 012126

T. Hutton, N. Segale, S. Mhlongo & A. Buffler, “Elemental analysis of concrete with fast neutron beams,” Journal of Physics: Conference Series2586 (2023) 012117. 

T. Leadbeater, A. Buffler, M. van Heerden, A. Camroodien & G. Steyn, “Development of Tracer Particles for Positron Emission Particle Tracking (PEPT)”  Nuclear Science and Engineering 198 (2023) 1-17.

T. Leadbeater, A. Buffler, S. Peterson, T. Hutton, M. van Heerden, A. Camroodien, R. van der Merwe, N. Hyslop & A. McKnight, “Dynamics of physical flows measured by positron emission techniques,” Journal of Physics: Conference Series, 2586 (2023) 012127.

T.W. Leadbeater, J.P.K. Seville & D.J. Parker, “On trajectory and velocity measurements in fluidized beds using positron emission particle tracking (PEPT),” Canadian Journal of Chemical Engineering  101 (2023) 269-282. 

V.I. Lozano, G. Dedes, S.W. Peterson, D. Mackin, A. Zoglauer, S. Beddar, S. Avery, J. Polf, K. Parodi et al., “Comparison of reconstructed prompt gamma emissions using maximum likelihood estimation and origin ensemble algorithms for a Compton camera system tailored to proton range monitoring,” Zeitschrift für Medizinische Physik 33 (2023) 124-134. 

Y. Rahma, S. Ouichaoui, J. Kiener, E.A. Lawrie, J.J. Lawrie, V. Tatischeff, A. Belhout, D. Moussa, W. Yahia-Cherif, H. Benhabiles-Mezhoud, et al. (including T.D. Bucher), “γ-ray emission in proton-induced nuclear reactions on natC and Mylar targets over the incident energy range, E_p = 30–200 MeV. Astrophysical implications,” Nuclear Physics A 1032 (2023) 122622.

C. Sole, A. Buffler, T. Hutton, T. Leadbeater, R. Babut, V. Gressier & M. Petit, “Benchmarking a New Digital Data Acquisition System for Fast Neutron Metrology,” IEEE Transactions on Nuclear Science 69 (2022) 1780-1788. 

C.R.K. Windows-Yule, M.T. Herald, A.L. Nicuşan, C.S. Wiggins, G. Pratx, S. Manger, A. Odo, T. Leadbeater, J. Pellico, R.T.M. de Rosales, A. Renaud, I. Govender, L.B. Carasik, A.E. Ruggles, T. Kokalova-Wheldon, J.P.K. Seville & D.J. Parker, “Recent advances in positron emission particle tracking: A comparative review,” Reports on Progress in Physics  85, (2022) 1-46. 

J.C. Polf, C.A. Barajas, S.W. Peterson, D.S. Mackin, S. Beddar, L. Ren & M.K. Gobbert, “Applications of Machine Learning to Improve the Clinical Viability of Compton Camera Based in vivo Range Verification in Proton Radiotherapy,” Frontiers in Physics 10 (2022) 1-13. 

J.C. Polf, P. Maggi, R. Panthi, S.W. Peterson, D. Mackin & S. Beddar, “The effects of Compton camera data acquisition and readout timing on PG imaging for proton range verification,” IEEE Transactions on Radiation and Plasma Medical Sciences 6 (2022) 366-373.

K.E. Cole, D.J. Barker, P.R. Brito-Parada, A. Buffler, K. Hadler, I. Mackay, D. Mesa, A.J. Morrison, S. Neethling, A. Norori-McCormac, B. Shean & J. Cilliers, “Standard method for performing positron emission particle tracking (PEPT) measurements of froth flotation at PEPT Cape Town,” MethodsX9 (2022) 1-19. 

P. Ngcobo, R.A. Bark, A. Buffler, P. Papka, D. Geduld, P. Jones, L. Makhathini, P. Maleka, N. Mantengu, S.S. Ntshangase & F.D. Smit, “Measurement of neutron production from an ¹⁸O target,” Nuclear Instruments and Methods in Physics Research Section B 513 (2022) 21-25.

T. Hutton, A. Buffler & M. Alexander, “Elemental analysis of concrete via fast neutron transmission and scattering spectrometry,” EPJ Web of Conferences 261 (2022) 1-8. 

X. Xiao, S.Y. Wang, C. Liu, R.A. Bark, J. Meng, S.Q. Zhang, B. Qi, H. Hua, P. Jones, S.M. Wyngaardt, et al. (including T.D. Bucher), “Chirality and octupole correlations in As-74,” Physical Review C 106 (2022) 1-9.