## Development of a nuclear technique for monitoring water levels in pressurized vesselsJag J. Singh, William T. Davis, Gerald H. Mall, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1983 - Technology & Engineering - 32 pages |

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absorber ANGFAC atomic density atomic number beam calculated values collimated Compton effect Compton scattering Computer coordinate defining gamma COSANG counting rates cross section data items defining gamma ray diameter of steel DIMENSION discriminator setting Edis ENN(K equation experimental results figure A2 FORTRAN Function GLEG15 gamma ray direction gamma ray energy Gamma ray path IAXIS incident photons internal diameter ith element Langley Research Center Linear attenuation coefficient manometer medium monitoring water levels Naruaa NHISS NHIT Number of gamma number of trajectories pair production photoelectric effect photomultiplier photon coordinate system photon energy pressure vessel probability distribution table Program TDIST2 random number RANF(T rest mass rotation matrices sampling plane scattered photon scattering angle scattering cross section section per atom solid angle spherical coordinate defining steel cylinder steel reservoir cylinder Subroutine POST technique for monitoring test atoms TEST FOP test gamma rays THETA TSCAT UROTOC XWALL1