Abstracts ASN Report 2019

CADARACHE SITE 1. The Potential Source Term (TSM is the French acronym for “ terme source mobilisable ”) corresponds to the quantity of radioactive activity that could be involved in an incident or accident. !0 !ƏƳƏȸƏƬǝƺ ƬƺȇɎȸƺ Created in 1959, the CEA Cadarache centre is situated in the municipality of Saint-Paul-lez-Durance in the Bouches- du-Rhône département , and covers a surface area of ׏ً ה ׎׎ ژ ǝƺƬɎƏȸƺɀِ Áǝǣɀ ɀǣɎƺ ǔȒƬɖɀƺɀ ǣɎɀ ƏƬɎǣɮǣɎɵ ȵȸǣȅƏȸǣǼɵ Ȓȇ nuclear energy and, as concerns its civil installations in operation, on research and development to support and optimise the existing reactors and the design of new-generation systems. The following BNIs are located on the site: • Ɏǝƺ ¨ƻǕƏɀƺ !ٮ ƏɀƬƏƳ ǣȇɀɎƏǼǼƏɎǣȒȇ ٢ zX אאژ ٣ٕ • Ɏǝƺ !Əƫȸǣ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ ٢ zX גאژ ٣ٕ • Ɏǝƺ «ƏȵɀȒƳǣƺ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ ٢ zX דאژ ٣ٕ • Ɏǝƺ ³ȒǼǣƳ áƏɀɎƺ ÁȸƺƏɎȅƺȇɎ ³ɎƏɎǣȒȇ ٢³Á( ٮ zX ٮובژ ٣ٕ • Ɏǝƺ ƬɎǣɮƺ 0ǔǔǼɖƺȇɎ ÁȸƺƏɎȅƺȇɎ ³ɎƏɎǣȒȇ ٢³Á0ً zX ٮובژ ٣ٕ • the Plutonium Technology Facility (ATPu, INB 32); • Ɏǝƺ xƏɀɖȸƬƏ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ ٢ zX חבژ ٣ٕ • Ɏǝƺ 1…n0 ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ ٢ zX אגژ ٣ٕ • ڗ Ɏǝƺ ƺȇȸǣƬǝƺƳ ÈȸƏȇǣɖȅ ¨ȸȒƬƺɀɀǣȇǕ IƏƬǣǼǣɎǣƺɀ ٢ ÁÈƺً zX אדژ ٣ٕ • Ɏǝƺ !ƺȇɎȸƏǼ IǣɀɀǣǼƺ xƏɎƺȸǣƏǼ áƏȸƺǝȒɖɀƺ ٢x!xIً zX בדژ ٣ٕ • Ɏǝƺ !ǝƺȅǣƬƏǼ ¨ɖȸǣǔǣƬƏɎǣȒȇ nƏƫȒȸƏɎȒȸɵ ٢n¨!ً zX גדژ ٣ٕ • Ɏǝƺ RǣǕǝ ٮ ƬɎǣɮǣɎɵ nƏƫȒȸƏɎȒȸɵ n0! ٮ ³Á « ٢ zX דדژ ٣ٕ • Ɏǝƺ ɀȒǼǣƳ ȸƏƳǣȒƏƬɎǣɮƺ ɯƏɀɎƺ ɀɎȒȸƏǕƺ ƏȸƺƏ ٢ zX הדژ ٣ٕ • Ɏǝƺ ¨ǝƻƫɖɀ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ ٢ zX אחژ ٣ٕ • Ɏǝƺ xǣȇƺȸɮƺ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ ٢ zX דחژ ٣ٕ • the Laboratory for research and experimental fabrication Ȓǔ ƏƳɮƏȇƬƺƳ ȇɖƬǼƺƏȸ ǔɖƺǼɀ ٢nƺǔƬƏً zX ژ ׏ בא ٣ٕ • Ɏǝƺ !ǝǣƬƏƳƺ ǼƏƫȒȸƏɎȒȸɵ ٢ zX ژ ׏ הד ٣ٕ • Ɏǝƺ !ƺƳȸƏ ɀɎȒȸƏǕƺ ǔƏƬǣǼǣɎɵ ٢ zX ژ ׏ גה ٣ٕ • Ɏǝƺ xƏǕƺȇɎƏ ɀɎȒȸƏǕƺ ɯƏȸƺǝȒɖɀƺ ٢ zX ژ ׏ חה ٣ٕ • the Effluent advanced management and processing ǔƏƬǣǼǣɎɵ ٢ ǕƏɎƺً zX ژ ׏ ו ׏٣ٕ • Ɏǝƺ hɖǼƺɀ RȒȸȒɯǣɎɿ «ƺƏƬɎȒȸ ٢«hRً zX ژ ׏ או ٣ ɖȇƳƺȸ construction. Ɏ Ɏǝƺ !ƏƳƏȸƏƬǝƺ ƬƺȇɎȸƺً ׏׎ ژ ǣȇɀɎƏǼǼƏɎǣȒȇɀ Əȸƺ ǣȇ ǔǣȇƏǼ ɀǝɖɎƳȒɯȇ ɀɎƏɎɖɀً ׏׎ ژ Əȸƺ ǣȇ ȒȵƺȸƏɎǣȒȇ ƏȇƳ Ȓȇƺ ǣɀ ɖȇƳƺȸ ƬȒȇɀɎȸɖƬɎǣȒȇِ Áǝƺ CEA Cadarache centre operates numerous installations which vary in their nature and their safety implications. ASN has moreover started or is continuing the examination of the periodic safety review guidance files or the conclusion reports ǔȒȸ ׏ ژה Ȓǔ Ɏǝƺ א ׏ ژ ǣȇɀɎƏǼǼƏɎǣȒȇɀ ي ¨ƻǕƏɀƺ !ٮ ƏɀƬƏƳً !Əƫȸǣً «ƏȵɀȒƳǣƺً STE, ATPu, ÉOLE, ATUe, MCMF, LPC, LECA-STAR, the waste storage area, Phébus, Minerve, Chicade, Cedra and Magenta. When examining these reports, ASN is particularly attentive to the robustness of the proposed and deployed action plans. It ensures that the installations are in conformity with the applicable regulations and that the risks and adverse effects are effectively controlled. ¨ƻǕƏɀƺ !ٮ ƏɀƬƏƳ ǔƏƬǣǼǣɎɵ – CEA Centre The Pégase reactor was commissioned on the Cadarache ɀǣɎƺ ǣȇ ׏ ژגהח ƏȇƳ ɯƏɀ ȒȵƺȸƏɎƺƳ ǔȒȸ ƏƫȒɖɎ Ɏƺȇ ɵƺƏȸɀِ Áǝƺ French Alternative Energies and Atomic Energy Commission ٢!0 ٣ ɯƏɀ ƏɖɎǝȒȸǣɀƺƳ ƫɵ Ə (ƺƬȸƺƺ Ȓǔ ׏ ژו ȵȸǣǼ ׏ זח ׎ ژ ɎȒ ȸƺɖɀƺ Ɏǝƺ ¨ƻǕƏɀƺ ǔƏƬǣǼǣɎɵ ٢ zX אאژ ٣ ǔȒȸ Ɏǝƺ ɀɎȒȸƏǕƺ Ȓǔ ȸƏƳǣȒƏƬɎǣɮƺ substances, in particular spent fuel elements in a pool. This facility, which does not meet current safety requirements for storage facilities, has received no more radioactive ɀɖƫɀɎƏȇƬƺɀ ǔȒȸ ɀɎȒȸƏǕƺ ɀǣȇƬƺ א ׎׎ ژז ƏȇƳ ǝƏɀ ȸƺȅȒɮƺƳ Ə ǼƏȸǕƺ part of its source term (1) . The decommissioning file for the facility, whose final shutdown is planned for the end of 2023, was submitted in 2019. Some specific removal-from-storage operations shall be subject to ASN authorisation. The CEA is effectively significantly behind schedule in the Pégase removal-from-storage operations, initially prescribed in ³z ȸƺɀȒǼɖɎǣȒȇ !…(0¨ !ٮ nJ אٮ ׎׏ ٮו ׎׎ ژגאדה Ȓǔ ׏׎ ژ IƺƫȸɖƏȸɵ א ׎׏ ו ِ Technical difficulties led the CEA to request the modification of Ɏǝƺɀƺ ȵȸƺɀƬȸǣȵɎǣȒȇɀ ɎȒ ɀƺɎ א ׎ ژדב Əɀ Ɏǝƺ ƳƺƏƳǼǣȇƺ ǔȒȸ ƬȒȅȵǼƺɎǣȒȇ of the removal-from-storage operations in Pégase. ASN is currently examining this request. Áǝƺ !ƏɀƬƏƳ ǔƏƬǣǼǣɎɵً ƏɖɎǝȒȸǣɀƺƳ ƫɵ Ə (ƺƬȸƺƺ Ȓǔ ژג ³ƺȵɎƺȅƫƺȸ 1989 modifying the Pégase facility and operated since 1990, is dedicated to the dry storage of irradiated fuel in wells. ASN’s assessment of nuclear safety and radiation protection ǣȇ Ɏǝƺ ¨ƻǕƏɀƺ ƏȇƳ !ƏɀƬƏƳ ǔƏƬǣǼǣɎǣƺɀ ǣȇ א ׎׏ ژח ǔǣȇƳɀ Ɏǝƺȅ ɎȒ ƫƺ relatively satisfactory. The CEA must nevertheless improve the monitoring of the action plan established further to the last periodic safety review of the facility. !Əƫȸǣ ȸƺɀƺƏȸƬǝ ȸƺƏƬɎȒȸ – CEA Centre Áǝƺ !Əƫȸǣ ȸƺƏƬɎȒȸ ٢ zX גאژ ٣ً ƬȸƺƏɎƺƳ Ȓȇ ژוא xƏɵ ׏ גהח ً ɯƏɀ designed for conducting experimental programmes aiming to achieve a better understanding of the behaviour of nuclear fuel in the event of a reactivity accident. The reactor has ƫƺƺȇ ƺȷɖǣȵȵƺƳ ɯǣɎǝ Ə ȵȸƺɀɀɖȸǣɀƺƳ ɯƏɎƺȸ ǼȒȒȵ ɀǣȇƬƺ א ׎׎ ژה ǣȇ order to study the behaviour of the fuel at high combustion rates in accident situations of increasing reactivity in a pressurised water reactor. Since January 2018, the CEA has been conducting a programme of tests called “CIP” (Cabri International Program), which began in the early 2000’s and necessitated substantial modification and safety upgrading work on the facility. Áǝƺ ɵƺƏȸ א ׎׏ ژח ɯƏɀ ƳƺɮȒɎƺƳ ɎȒ Ɏǝƺ Ɏƺȇ ٮ ɵƺƏȸǼɵ ȸƺȷɖƏǼǣǔǣƬƏɎǣȒȇ Ȓǔ the reactor’s pressurised water loop, in view of the next cycle of tests planned for 2020. In 2019, ASN started the examination of a request to modify the creation authorisation decree for Cabri, submitted by the CEA with a view to having authorisation to irradiate electronic equipment in the Cabri reactor. 88 ASN Report on the state of nuclear safety and radiation protection in France in 2019 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION ¨«…à0z!0 n¨0³ !ٳ ˆÁ0 ( ټ ñÈ«