Multi-voltage threshold digitizer using a time-varied threshold for photon-counting X-ray security inspection imaging

R Chen, C Cai, W Liu, D Xi, Q Xie - … Methods in Physics Research Section A …, 2023 - Elsevier
In this paper, we present a multi-voltage threshold (MVT) digitizer using a time-varied
threshold and investigate the feasibility of using this digitizer to develop the data acquisition …

Light spread manipulation in scintillators using laser induced optical barriers

L Bläckberg, M Moebius, G El Fakhri… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
We are using the laser induced optical barriers (LIOBs) technique to fabricate scintillator
detectors with combined performance characteristics of the two standard detector types …

Simulation study of light transport in laser-processed LYSO: Ce detectors with single-side readout

L Bläckberg, G El Fakhri, H Sabet - Physics in Medicine & Biology, 2017 - iopscience.iop.org
A tightly focused pulsed laser beam can locally modify the crystal structure inside the bulk of
a scintillator. The result is incorporation of so-called optical barriers with a refractive index …

Exploring light confinement in laser-processed LYSO: Ce for photon counting CT application

L Bläckberg, S Sajedi, S Mandl, A Mohan… - Physics in Medicine …, 2019 - iopscience.iop.org
With the goal of developing a low-cost scintillator-based photon counting detector (PCD)
with high dose efficiency suitable for CT, the light transport characteristics in LYSO: Ce …

New Detector Designs for High Resolution Brain PET

L Bläckberg, S Sajedi, G El Fakhri… - 2019 IEEE Nuclear …, 2019 - ieeexplore.ieee.org
The goal of this work is to design a detector with≤ 2 mm intrinsic resolution and multiple
levels of depth of interaction (DOI), suitable for brain dedicated Positron Emission …

Digital deconvolution of scintillation detector signals for high rate photon-counting x-ray imaging applications

XB Yue, Z Deng - Hard X-Ray, Gamma-Ray, and Neutron …, 2018 - spiedigitallibrary.org
A digital deconvolution method with pile-up reconstruction has been proposed for scintillator
detectors for high rate photon-counting X-ray imaging applications. The detector signal was …

Simulation Study of Partially Laser-Processed LYSO: Ce with Single-Side Readout

L Bläckberg, G El Fakhri, H Sabet - 2017 IEEE Nuclear Science …, 2017 - ieeexplore.ieee.org
Laser Induced Optical Barriers (LIOB) can be used to locally engineer the refractive index of
a scintillator crystal, leading to the incorporation of so-called optical barriers. Given that the …