A liquid xenon TPC for a medical imaging Compton telescope
T. Oger, W-T. Chen, J-P. Cussonneau, J. Donnard, S. Duval, J. Lamblin,, O. Lemaire, A. F. Mohamad Hadi, P. Le Ray, E. Morteau, L. Scotto Lavina, J-S., Stutzmann, D. Thers
TL;DR
This paper presents a liquid xenon TPC prototype for 3γ medical imaging, demonstrating high-precision energy and spatial resolution for 511 keV gamma rays, advancing the feasibility of this novel imaging technique.
Contribution
The study introduces a liquid xenon TPC prototype with ultra-low-noise electronics, showing promising energy and spatial resolution for 3γ imaging in medical applications.
Findings
High-precision energy deposit measurement at 511 keV
Estimated 500 μm z spatial resolution
Feasibility demonstration for 3γ medical imaging
Abstract
A new technique for medical imaging, "3{\gamma} imaging", is studied by our group at SUBATECH for few years. A small liquid xenon time projection chamber prototype has been built in order to demonstrate the feasibility of this technique. With an ultra-low-noise front-end electronics, the energy deposit and resolution of 511 keV {\gamma}-ray as a function of drift electric field (E) is measured with high precision. 500 {\mu}m of z resolution is estimated by measuring the charge carriers drift velocity and time resolution.
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