Speaker
Ms
Raheema Hafeji
(Instituto Galego de Física de Altas Enerxías (IGFAE))
Description
An Optical Time Projection Chamber with 2 stages of amplification using THGEMs (THick Gaseous Electron Multipliers) that are operated in high-pressure Ar:CF$_4$ is being developed. Argon doped with 1% of CF$_4$ provides wavelength shifting of argon scintillation photons from the vacuum-ultraviolet (VUV) to the visible region, centred at 630nm. A Timepix camera coupled to a red light image intensifier can provide Full3D optical imaging of particle tracks with high readout rates, by obtaining the z-coordinate from time-of-arrival and x,y camera pixel number to mm conversion. Reconstruction of low-energy particles from neutrino interactions can be carried out with nanosecond time resolution and fine spatial resolution.
Author
Ms
Raheema Hafeji
(Instituto Galego de Física de Altas Enerxías (IGFAE))
