Helgeson - Do-It-Yourself Whole Body Counter for Internal Dosimetry

The Helgeson 'Do-It-Yourself Whole Body Counter' is designed for personnel monitoring at nuclear facilities, laboratories, and hospitals, offering a cost-effective solution to assess internal contamination. This device measures the total body burden of gamma emitters and provides an estimation of their deposition sites within the body, utilizing a scanning geometry known for minimizing errors associated with non-uniform source distribution. Notably, it offers superior positional response compared to conventional chair or organ counters. The system is equipped with a choice of detector configurations, including NaI(Tl) and HPGe, and integrates advanced analytical software for comprehensive data analysis. The software supports continuous spectral display, data graphs, and allows for parameters modification aligning with ICRP standards. Environmentally, it operates efficiently between 5 to 50ºC and 30%-80% humidity, requiring specific AC power supply and lead shielding for optimal performance.