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CARR采用轻水冷却,重水慢化,重水受辐照后会分解成氘和氧,氘和氧积累到一定浓度会发生爆炸。为了保证反应堆的安全,使系统中的爆炸性气体浓度限制在3%以内,需要载体把爆炸性气体带到堆外,并合成重水回收。可供选择的载体主要有氮气和氦气。对于CARR而言,采用氮气作载体,优点是
CARR light water cooling, heavy water moderation, heavy water by the irradiation will be decomposed into deuterium and oxygen, deuterium and oxygen accumulated to a certain concentration will explode. In order to ensure the safety of the reactor and to limit the explosive gas concentration in the system to within 3%, a carrier is needed to bring the explosive gas outside the reactor and recover the heavy water. The main carriers to choose from are nitrogen and helium. For CARR, the use of nitrogen as a carrier, the advantage is