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سیستم تبادل یونی جهت تصفیه آب استخر رآکتور اتمی دانشگاه تهران | ||
| نشریه دانشکده فنی | ||
| مقاله 11، دوره 29، شماره 0 - شماره پیاپی 1000199، مهر 1353 اصل مقاله (208.02 K) | ||
| نویسندگان | ||
| مهدی صرام؛ جمشید مقیمی دانشیار* | ||
| عنوان مقاله [English] | ||
| The Ion Exchange Demineralizer System For The Tehran University Research Reactor | ||
| چکیده [English] | ||
| The core of the nuclear reactor at the Tehran University is located in a pool with capacity 500,000 liters at a depth of 8 meters. The pool is filled with city water after passage through a demineralizer system which Increases the specific resistance of city water from 2000 Ohms per cc to about 1000,000 Ohms per cc. The reactor is used as a source of neutrons for radioisotope production, etc. The reaction of neutrons with the constructional material of the reactor such as aluminum produces ions which are all radioactive. 24Na , 27Mg , 28Al are produced from 27AI by neutron absorption. Due to the existence of these radioactive ions and the following reasons, a nuclear reactor such as the one at the Tehran Univ. Nuclear Center, must have a demineralizer system to remove the ions: a--The impurities III the city water, such as Ca, K etc. become radioactive in the reactor. b - Pool water must be free of impurities III order to prevent the fuel element corrosion. c - The higher the specific resistance of the water, the less will be the penetration of the core gamma rays to the pool surface area. Details of the de mineralizer system J its recharging process and other characteristics are given in the paper. | ||
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