Advances continue to be made in hard x-ray, gamma-ray, neutron detectors and associated technologies for spectroscopy and imaging of these energetic photons and particles. Many types of position and energy sensitive detectors are actively being developed, including semiconductor detectors and arrays, high-density noble gas detectors, phosphors, scintillators, thin film transistor arrays, charge-coupled devices, microchannel plates, and calorimetric detectors. These detectors are being employed singly, or in conjunction with optical components and x-ray/gamma-ray sources to produce systems having important applications ranging from medical diagnostics and treatment to astronomical research. Important examples include nuclear medicine, dental imaging, dosimetry, industrial radiography, nondestructive testing, heavy metals analysis, cargo inspection, nuclear safeguards and surveillance, treaty verification, explosives detection, and environmental monitoring. This conference will provide rapid dissemination of the latest results from the forefront of research on hard x-ray, gamma-ray and neutron detector physics through seminal invited papers and qualified contributed papers from academic, government, and industry researchers.