G-CoReCCD: a GPU-based simulator of the charge transport in fully-depleted CCDs

TL;DR

G-CoReCCD is a GPU-accelerated simulator that models charge transport in fully-depleted CCDs, including Coulomb interactions, enabling large-scale simulations in a feasible timeframe.

Contribution

This paper presents a GPU-based simulation tool that significantly speeds up modeling of charge transport with Coulomb interactions in thick CCDs.

Findings

Simulates hundreds of thousands of carriers in hours

Achieves high computational efficiency with GPU parallelization

Includes Coulomb repulsion in charge transport modeling

Abstract

We introduce a simulator of charge transport in fully-depleted, thick CCDs that include Coulomb repulsion between carriers. The calculation of this long-range interaction is highly intensive computationally, and only a few thousands of carriers can be simulated in reasonable times using regular CPUs. G-CoReCCD takes advantage of the high number of multiprocessors available in a graphical processing unit (GPU) to parallelize the operations and thus achieve a massive speedup. We can simulate the path inside the CCD bulk for up to hundreds of thousands of carriers in only a few hours using modern GPUs.