Abstracts ASN Report 2019

׏ِ׏ِ א zƺɖɎȸȒȇ ƏƬɎǣɮƏɎǣȒȇ Neutron activation consists in irradiating a sample with a flux of neutrons to activate the atoms in the sample. The number and the energy of the gamma photons emitted by the sample in response to the neutrons received are analysed. The information collected is used to determine the concentration of atoms in the analysed material. This technology is used in archaeology to characterise ancient objects, in geochemistry for mining prospecting and in industry (study of the composition of semiconductors, analysis of raw mixes in cement works). GRAPH 1B Breakdown of notifications by end-purpose in 2019 0 200 400 600 800 1,000 1,200 Atmospheric dust measurement Elimination of static electricity Smoke detectors Calibration Teaching Chromatography Electron capture detectors æ ٮ ȸƏɵ ˢɖȒȸƺɀƬƺȇƬƺ analysis Electronic tubes with pre-ionization zɖȅƫƺȸ Ȓǔ ǔƏƬǣǼǣɎǣƺɀ ɯǣɎǝ Ə ȇȒɎǣˡƬƏɎǣȒȇ ƏƬǸȇȒɯǼƺƳǕƺȅƺȇɎ GRAPH 1A Use of sealed radioactive sources 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 Calibration X-ray ˢɖȒȸƺɀƬƺȇƬƺ ƏȇƏǼɵɀǣɀ (ƺȇɀǣɎɵ ȅƺƏɀɖȸƺȅƺȇɎ ƏȇƳ ɯƺǣǕǝǣȇǕ ÁǝǣƬǸȇƺɀɀ ȅƺƏɀɖȸƺȅƺȇɎ ɎȅȒɀȵǝƺȸǣƬ ƳɖɀɎ ȅƺƏɀɖȸƺȅƺȇɎ ÁǝǣƬǸȇƺɀɀ Ȓǔ Ɏǝǣȇ ǼƏɵƺȸɀ nƺɮƺǼ ȅƺƏɀɖȸƺȅƺȇɎ ¨Əȵƺȸ ɯƺǣǕǝɎ ȅƺƏɀɖȸƺȅƺȇɎ RɖȅǣƳǣɎɵ ƏȇƳ ƳƺȇɀǣɎɵ (ǣƏǕȸƏȵǝɵ ٢ǼȒǕǕǣȇǕ٣ 0ǼǣȅǣȇƏɎǣȒȇ Ȓǔ ɀɎƏɎǣƬ ƺǼƺƬɎȸǣƬǣɎɵ XȅȵǼƺȅƺȇɎƏɎǣȒȇ Ȓǔ ȇƺɖɎȸȒȇ ɀȒɖȸƬƺɀ ÁƺƏƬǝǣȇǕ ȇƏǼɵɀǣɀ «ƺɀƺƏȸƬǝ !ǝȸȒȅƏɎȒǕȸƏȵǝɵ 0ǼƺƬɎȸȒȇ ƬƏȵɎɖȸƺ ƳƺɎƺƬɎȒȸɀ JƏȅȅƏ ȸƏƳǣȒǕȸƏȵǝɵ 0 100 200 300 400 500 600 700 800 2015 2016 2017 2018 2019 zɖȅƫƺȸ Ȓǔ ǔƏƬǣǼǣɎǣƺɀ ǼǣƬƺȇɀƺƳ ASN Report on the state of nuclear safety and radiation protection in France in 2019 231 ׎ ٲ ז SOURCES OF IONISING RADIATION AND THEIR INDUSTRIAL, VETERINARY AND RESEARCH APPLICATIONS 08