TY - RPRT TI - Production of photons with a narrow energy spectrum, starting from high energy electrons; Production de photons de spectre etroit a partir d'electrons de grande energie AB - A method for the production of photons with a narrow spectrum and of variable energy, based on the properties of the annihilation in flight of positrons, is examined in detail. The spectra of the photons produced and the yield of the process are given for various conditions. (author) [French] Une methode de production de photons de spectre etroit et d'energie variable, basee sur les proprietes de l'annihilation en vol des positons, est examinee en detail. Le spectre des photons produits, le rendement du processus sont donnes pour diverses conditions. (auteur) AU - "Tzara, C [Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires]" KW - "73 NUCLEAR PHYSICS AND RADIATION PHYSICS" KW - "ANGULAR DISTRIBUTION" KW - "ANNIHILATION" KW - "BREMSSTRAHLUNG" KW - "DIFFERENTIAL CROSS SECTIONS" KW - "DOPPLER EFFECT" KW - "ELECTRON-ATOM COLLISIONS" KW - "ELECTRONS" KW - "ENERGY SPECTRA" KW - "ENERGY YIELD" KW - "INTEGRAL CALCULUS" KW - "LITHIUM HYDRIDES" KW - "MEV RANGE 10-100" KW - "PAIR PRODUCTION" KW - "PHOTONS" KW - "POSITRONS" KW - "PROBABILISTIC ESTIMATION" DO - https://doi.org/ UR - https://www.osti.gov/etdeweb/servlets/purl/20888387 PB - CY - France PY - 1958 DA - 1958-07-01 LA - French J2 - [] VL - C1 - CEA Saclay, 91 - Gif-sur-Yvette (France) C2 - C3 - CEA-R-814 C4 - C5 - Available from INIS in electronic form L3 - Other Information: 8 refs ER -