Gamma ray spectrometer||399.85 Gamma-ray astronomy||368.55 Gamma spectroscopy||333.73 Formation evaluation gamma ray||299.46 Medical radiography||251.62 Pair-instability supernova||237.73 Electromagnetic spectrum||235.58 Great Observatories program||214.88 Ionizing radiation||204.29 Radiography||197.75 Terrestrial gamma-ray flash||178.97 Reuven Ramaty High Energy Solar Spectroscopic Imager||175.45 Fallout shelter||162.65 Electromagnetic pulse||156.94 Geminga||155.57 Gamma Cassiopeiae||149.59 Mössbauer effect||127.84 Radioactive decay||122.67 Magnetar||121.3 Antimatter rocket||116.69 INTEGRAL||116.41 High Energy Astronomy Observatory 3||109.61 Relativistic rocket||98.73 Mössbauer spectroscopy||98.45 Technetium-99m||93.02 Alpha particle||87.86 Pound-Rebka experiment||81.32 Epsilon radiation||77.26 Annihilation radiation||75.06 Delayed nuclear radiation||75.06 Los Rayos Gamma||74.79 Messier 87||70.17 Neutron capture||64.74 Beta particle||64.46 Radiographic equipment||64.18 Radiation homeostasis||64.18 Collimator||58.47 SN 2006gy||58.47 Compton scattering||52.76 Induced gamma emission: Hafnium controversy||52.76 Explorer 11||52.21 Gammasphere||51.95 LS I +61 303||46.23 IceCube Neutrino Observatory||40.79 Density logging||40.79 Luise Meyer-Schützmeister||35.08 The Effect of Gamma Rays on Man-in-the-Moon Marigolds||35.08 STACEE||34.81 LS 5039||34.81