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「常陽」照射試験サイクル報(第33サイクル)

Irradiation tests report of the 33rd cycle in "JOYO"

照射管理課*

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本報告書は、第33サイクルの照射試験終了に伴う運転実績、照射実績、第34サイクルの照射予測等の各種データについて関係者への周知、活用を図ることを目的にまとめたものである。第33サイクルの主な照射試験は以下のとおりである。・「もんじゅ」燃料ピン照射試験、改良オーステナイト被覆燃料ピン照射試験、太径燃料ピン照射試験、フェライト鋼被覆燃料照射試験、太径中空燃料ピン照射試験、炭・窒化物燃料照射試験(以上B9)・日仏交換照射(C4F)・太径燃料ピン照射試験(バンドル照射:C6D)・吸収ピン破損限界照射試験(AMIR-6)・「もんじゅ」被覆管材料等照射(CMIR-5)・炉心材料照射(CMIR-5-1)・大学連合からの受託照射(SMIR)・「もんじゅ」サーベイランスバックアップ試験(SMIR)・実証炉及び大型炉用構造材料の材料強度基準策定への反映(SMIR)・スペクトル効果及び加速照射効果確認試験(UPR-1-5)また、第33サイクルにおける炉心燃料の最高燃焼度はPFD516の64,300MWd/t(要素平均)である。

This report summarizes the operating and irradiation data of the experimental reactor "JOYO" 33rd cycle, and estimates the 34th cycle irradiation condition. Irradiation tests in the 33rd cycle are as follows: (1)B-type irradiation rig (B9) (a)High burn up performance tests of "MONJU" fuel pins, advanced austenitic steel cladding fuel pins, large diameter fuel pins, ferrite steel cladding fuel pins and large diameter annular pellet fuel pins (b)Mixed carbide and nitride fuel pins irradiation tests (in collaboration with JAERI) (2)C-type irradiation rig (C4F) (a)High burn up performance test of advanced austenitic stainless steel cladding fuel pins (in collaboration with France) (3)C-type irradiation rig (C6D) (a)Large diameter fuel pins irradiation tests (4)Absorber Materials Irradiation Rig (AMIR-6) (a)Run to absorber pin's cladding breach (5)Core Materials Irradiation Rig (CMIR-5) (a)Cladding tube materials irradiation tests for "MONJU" (6)Core Materials Irradiation Rig (CMIR-5-1) (a)Core materials irradiation tests (7)Structure Materials Irradiation Rigs(SMIR) (a)Material irradiation tests (in collaboration with universities) (b)Surveillance back up tests for "MONJU" (8)Upper core structure Irradiation Plug Rig (UPR-1-5) (a)Upper core neutron spectrum effect and accelerated irradiation effect. The maximum burnup driver assembly "PFD516" reached 64,300MWd/t (pin average).

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