H3D

Nuclear Power & Waste applications: 

• Location of primary source terms: The H gamma-ray cameras can be used to locate the primary source(s) of radiation before work will be performed in some area.
• Shielding design and application: The H series or the P100 can help to optimize this shielding by identifying the primary contribution to the dose from each isotope. The distribution of gamma rays from each isotope can be measured before and after a shield is added to help validate its effectiveness. Furthermore, gaps in the shield can be identified through the image.
• Finding discrete radioactive particles: It can sometimes be hard to find discrete radioactive particles with a survey instrument because one must put the probe directly over the discrete radioactive particle and move slowly enough to tell that the count rate is elevated there. However, by imaging the entire region in a single measurement, a hot spot will appear over the particle.
• Identifying fuel failures Fuel failures can create challenges to radiation protection because of the release of alpha-emitting actinides. The fission product Cs-137 is also released in fuel-cladding leakage, so the presence of Cs-137 can hint of the presence of actinides. However, during operation, the strong gamma-ray field from coolant activation products such as N-16 can overpower the Cs-137 signal when using some detector systems.
• The extremely high peak-to-total ratio and excellent energy resolution from H100's or H400's large-volume CZT detector allow the Cs-137 662-keV peak to be identified even when in a strong N-16 field. Furthermore, imaging Cs-137's 662-keV line discloses where Cs-137 is most-strongly present.
• Determining spatial extent of contamination

Security: 

• Large crowds scanning: with the H imaging systems a threat can be distinguished from a normal situation. The Imaging systems can effectively distinguish a person who underwent medical treatment from someone carrying a source illegally.
• Border security