NASA-gamma: a Python-based open source GUI for gamma ray spectroscopy

NASA-gamma is a Python-based open source analysis software toolkit designed for gamma ray spectroscopy. Some of its features include advanced peak fitting and error estimation, energy calibration, efficiency calibration, peak finding, peak identification with specialized databases, and advanced visualization. NASA-gamma was originally developed to support neutroninduced gamma ray analysis in the context of planetary science. However, it can be used in many applications that make use of gamma ray spectroscopy. We present here its overall functionality and advanced features so that researchers and students around the globe can make use of it. Its Graphical Unit Interface (GUI) allows the community to make use of its many features without any programming knowledge.