Reactor Accidents Sub-Directory<\/a>\u00a0]\u00a0<\/center> <\/p>\n","protected":false},"excerpt":{"rendered":"The Core of One of the Four Darlington Reactors — Before Startup [\u00a0pour la version fran\u00e7aise\u00a0] The core of a CANDU reactor is contained in a cylindrical vessel called a calandria. Running from one end of the calandria to the other are several hundred pressure tubes; they contain the uranium fuel bundles, and through them …<\/p>\n
The Core of One of the Four Darlington Reactors — Before Startup<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-1100","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages\/1100","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/comments?post=1100"}],"version-history":[{"count":8,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages\/1100\/revisions"}],"predecessor-version":[{"id":2178,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages\/1100\/revisions\/2178"}],"wp:attachment":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/media?parent=1100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/categories?post=1100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/tags?post=1100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![](\"http:\/\/ccnr.org\/gifs\/candu.JPG\")
The core of a CANDU reactor is contained in a cylindrical vessel called a calandria. Running from one end of the calandria to the other are several hundred pressure tubes; they contain the uranium fuel bundles, and through them the heavy water coolant flows. The superheated coolant is then used to boil ordinary water, which produces steam, which spins a turbine, which generates electricity. Once the reactor has operated for a while, the irradiated fuel becomes so radioactive that a man standing in front of the reactor face (as this man is) would receive a lethal dose of radiation in a very short time, even if the reactor were completely shut down.<\/p>\n