Dr. George Xu and Dr. Peter Caracappa represented Virtual Phantoms at the Annual Conference of the American Association of Medical Physicists in San Antonio, Texas in July of 2019. They demonstrated new features in VirtaulDoseCT and VirtualDoseIR. They also presented several scientific oral and poster papers that introduced the GPU-based Monte Carlo dose engine, ARCHER, for accuracy and near real-time dose calculations for patients receiving radiation treatment.