activity
20162023
most citedDirect observation of electron emission as a result of a VVV Auger transition in the valence band of Graphene

33 citations · 67 across the 11 of their papers we have counts for

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4 papers · 1 filter

physics.ins-det2023★ 1 cited

Monte Carlo analysis of the contributions of long-lived positronium to the spectra of positron-impact-induced secondary electrons measured using an annihilation-gamma-triggered time-of-flight spectrometer

S. Lotfimarangloo, V. A. Chirayath, S. Mukherjee +5

Magnetic bottle Time-of-Flight (ToF) spectrometers can measure the energy spectra of all electrons emitted into a 2 sr solid angle simultaneously, greatly reducing data collecti…

physics.ins-det2020

Efficient Machine Learning Approach for Optimizing the Timing Resolution of a High Purity Germanium Detector

R. W. Gladen, V. A. Chirayath, A. J. Fairchild +3

We describe here an efficient machine-learning based approach for the optimization of parameters used for extracting the arrival time of waveforms, in particular those generated by…

physics.ins-det2020★ 9 cited

A multi-stop time-of-flight spectrometer for the measurement of positron annihilation-induced electrons in coincidence with the Doppler-shifted annihilation gamma photon

V. A. Chirayath, R. W. Gladen, A. D. McDonald +12

Here we describe an advanced multi functional, variable-energy positron beam system capable of measuring the energies of multiple positron-induced electrons in coincidence with the…

physics.ins-det2019

Coincident Measurement of the Energy Spectra of Doppler-Shifted Annihilation Gamma Quanta and Positron-Induced Secondary Electrons

R W Gladen, V A Chirayath, A J Fairchild +3

Preliminary results are presented from a new positron beam system currently under development at the University of Texas at Arlington for the coincident energy measurement of Doppl…