Abstracts ASN Report 2019

Further to the last periodic safety review, ASN issued the ȸƺɀȒǼɖɎǣȒȇ Ȓǔ ב ׎ ژ zȒɮƺȅƫƺȸ א ׎׏ ژה ٢ƏȅƺȇƳƺƳ Ȓȇ ژהא hɖȇƺ אژ ׎׏ ו ٣ regulating the continued operation of the facility through technical prescriptions relating in particular to the improvement plan that CEA had undertaken to implement. Some of CEA’s commitments have not been fulfilled within the deadlines. In particular, the demonstration of the behaviour of the structures with respect to the fire risk is behind schedule: a complementary study must be carried out to finalise the list of work to be carried out along with the corresponding deadlines. ASN shall be attentive to the proposed schedule and the CEA’s firm commitment to meet it. The reinforcement work to ensure the earthquake resistance Ȓǔ ƫɖǣǼƳǣȇǕ ژדאה ɯƏɀ ƏɖɎǝȒȸǣɿƺƳ ǣȇ IƺƫȸɖƏȸɵ א ׎׏ ח ِ ³z ɀǝƏǼǼ ƫƺ particularly attentive to the meeting of the deadlines for this work (end of the second quarter of 2021). Áǝƺ ǣȇɀȵƺƬɎǣȒȇɀ ƬƏȸȸǣƺƳ ȒɖɎ ƫɵ ³z ǣȇ א ׎׏ ژח ȸƺɮƺƏǼƺƳ ȒȵƺȸƏɎǣȒȇ of the facility to be satisfactory. More particularly, safety management was found to be well ensured. Improvements are however expected in the management of the periodic checks and tests with, among other things, the updating of the operating documents and a clearer definition of the criteria to be satisfied during the tests. ¨ȒɀƻǣƳȒȇ ǣȸȸƏƳǣƏɎȒȸ – CEA Centre ɖɎǝȒȸǣɀƺƳ ǣȇ ׏ אוח ً Ɏǝƺ ¨ȒɀƻǣƳȒȇ ǔƏƬǣǼǣɎɵ ٢ zX ווژ ٣ ǣɀ Əȇ ǣȸȸƏƳǣƏɎȒȸ ƬȒȅȵȸǣɀǣȇǕ Ə ɀɎȒȸƏǕƺ ȵȒȒǼ ǔȒȸ ƬȒƫƏǼɎ הٮ ׎ ژ ɀȒɖȸƬƺɀً partially surmounted by an irradiation bunker. The zX ژ ȅȒȸƺȒɮƺȸ ǣȇƬǼɖƳƺɀ ƏȇȒɎǝƺȸ ƫɖȇǸƺȸƺƳ ǣȸȸƏƳǣƏɎȒȸ ƫƏȵɎǣɀƺƳ Pagure, and the Vulcain accelerator. This facility is used for studies and qualification services for the equipment installed in the nuclear reactors, notably thanks to an immersible chamber, as well as for the radiosterilisation of medical products. The main risk in the facility is of personnel exposure to ionising radiation due to the presence of very high-activity sealed sources. Examination of the periodic safety review report for the facility was completed with the publication of resolution CODEP- !nJ אٮ ׎׏ ٮח ׎ גזג ׏ ژה Ȓǔ ژאא zȒɮƺȅƫƺȸ א ׎׏ ח ِ Áǝƺ ȅƏǴȒȸ Ɏǝƺȅƺɀ addressed include the resistance of the building to seismic and climatic hazards (snow and wind in particular), and the ageing of the Poséidon storage pool. In the light of the inspections carried out in 2019, ASN considers that the facility is operated satisfactorily and that the radioactive source renewal operations are properly managed. It underlines the steps taken by the CEA to clean out the premises by removing the items that are no longer used, thereby minimising the fire loads, and to improve the facility’s equipment or put it back into service. Greater rigour is however required in filling out the operating documents. 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. SOLID WASTE AND LIQUID EFFLUENT TREATMENT FACILITIES The CEA operates diverse facilities: laboratories associated with fuel cycle research as well research reactors. The CEA also carries out numerous decommissioning operations. Consequently, it produces diverse types of waste. The CEA has specific processing, packaging and storage facilities for the management of this waste. ³ȒǼǣƳ ȸƏƳǣȒƏƬɎǣɮƺ ɯƏɀɎƺ ȅƏȇƏǕƺȅƺȇɎ ɿȒȇƺ – CEA Centre Áǝƺ ɀȒǼǣƳ ȸƏƳǣȒƏƬɎǣɮƺ ɯƏɀɎƺ ȅƏȇƏǕƺȅƺȇɎ ɿȒȇƺ ٢ zX אוژ ٣ ɯƏɀ ƏɖɎǝȒȸǣɿƺƳ ƫɵ Ɏǝƺ (ƺƬȸƺƺ Ȓǔ ׏ ژג hɖȇƺ ׏ וח ׏ِ…ȵƺȸƏɎƺƳ ƫɵ Ɏǝƺ CEA, this facility processes, packages and stores the high, intermediate and low-level waste from the Saclay centre facilities. It also stores legacy materials and waste (spent fuels, sealed sources, scintillating liquids, ion-exchange resins, technological waste, etc.) pending disposal. Considering the “Potential Source Term” (TSM) (1) currently ȵȸƺɀƺȇɎ ǣȇ Ɏǝƺ ǔƏƬǣǼǣɎɵً zX ژאוژ ǣɀ Ȓȇƺ Ȓǔ Ɏǝƺ ȵȸǣȒȸǣɎǣƺɀ Ȓǔ Ɏǝƺ CEA’s decommissioning strategy which has been examined by ASN, which stated its position on the so-defined priorities ǣȇ xƏɵ א ׎׏ ژח ٢ɀƺƺ zȒɎƏƫǼƺ ƺɮƺȇɎɀ ǣȇ Ɏǝƺ ǣȇɎȸȒƳɖƬɎǣȒȇ ɎȒ Ɏǝǣɀ chapter and chapter 13). The commitments made further to the preceding safety review ǣȇ א ׎׎ ژח ƏǣȅƺƳ ɎȒ ǕɖƏȸƏȇɎƺƺ Əȇ ƏƬƬƺȵɎƏƫǼƺ ǼƺɮƺǼ Ȓǔ ɀƏǔƺɎɵ Ȓǔ the facility for the next ten years. They concerned in particular the removal of the majority of the potential source term from the facility and stopping the reception of new waste from the Saclay centre in order to concentrate the facility’s resources on the retrieval and packaging of the legacy waste and on the decommissioning. In 2017, in view of the delays in the removal from storage operations, the CEA requested that the deadlines prescribed ǣȇ ³z ȸƺɀȒǼɖɎǣȒȇ א ׎׏׎ ٮ!(ٮ ׎׏ ژגח Ȓǔ ژאא hɖǼɵ א ׎׏׎ ژ ǔȒȸ ȸƺȅȒɮƏǼ of the irradiated fuel from storage and removal of the waste ɀɎȒȸƺƳ ǣȇ Ɏǝƺ גٹ ׎ ژ ɯƺǼǼɀ ٺ ƏȸƺƏ ƫƺ ȵɖɀǝƺƳ ƫƏƬǸ ƫɵ ɀƺɮƺȸƏǼ ɵƺƏȸɀِ Xȇ ȒȸƳƺȸ ɎȒ ƫƺ ƏƫǼƺ ɎȒ ƬȒȇɎǣȇɖƺ ɖɀǣȇǕ Ɏǝƺ zX ژ ǔȒȸ ȅƏȇƏǕǣȇǕ Ɏǝƺ ȸƏƳǣȒƏƬɎǣɮƺ ɯƏɀɎƺ ǔȸȒȅ Ɏǝƺ ³ƏƬǼƏɵ zXɀً Ɏǝƺ !0 ǣȇ א ׎׏ ژו ƏɀǸƺƳ for a change in the date of final shutdown of the facility, postponing it until the first of the following two terms was reached: either the effective date of the decommissioning ƳƺƬȸƺƺ Ȓȸ Ɏǝƺ ƳƏɎƺ Ȓǔ ב ׏ (ژ ƺƬƺȅƫƺȸ א ׎ אא ِ In the context of the periodic safety review, for which the report was submitted at the end of 2017, and the decommissioning file, ASN has examined the conditions of continued operation Ȓǔ zX ژאוژ ɯǣɎǝ Ə ɮǣƺɯ ɎȒ ǣɎɀ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕِ Áǝƺɀƺ ɎɯȒ ǔǣǼƺɀ have been examined jointly by ASN and IRSN, ASN having requested the latter’s opinion. ASN shall be particularly vigilant with regard to rigorous application of the action plan proposed by the CEA, and meeting of the commitments made during the examination. Alongside this, the examination of the decommissioning file shall continue in 2020. ASN Report on the state of nuclear safety and radiation protection in France in 2019 63 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION \n0 (ٳ 0 ٳ I« z!0