Cylindrical And Squared The Ball Sensor Radiation Shield Shielding Performance Analysis And Research

There is plenty of gama rays and nertrons exists in a cuttor enivorment ofreprocessing of spent nuclear fuel,brings a terrible influences to acoustic sensorsworking in such places.Based on relevant documents,the mechanical properties of thesensors will be weaken under the condition of high radioactive circumstance if there isno protection to take.Moreover,it would be irreversible unless the absorbed dose sumsto the threshold value of the sensor.in hense we set a radiation shielding shell for thesensor not only for reducing its absorbed dosing rate to lengthen its working lifetimebut also avoid frequently mending or changing the sensor what loss its functions underthe condition of high radioactive circumstance.which has an important meaning inmonitoring the working condition of high radioactive circumstance.At this paper,we discussed the application of globate(preference)-quadrate(chamber) radioactive shielding shell and cylinder shielding shell at airradiation chamber of60Co,we choose the90%(mass fraction) tungsten alloy as thematerial of shells in shielding γ-rays.then we discussed the lengths of relevant parts ofthe shells to forming different proposals under the premise of fixed numerical value ofmass. By each proposal we investigate the absorbed dosing rate of sensor,from whatwe judged the shielding properties of each shell.At last,we discussed the angle of thesoundhole as calculate absorbed dosing rate by each angle and conclude the necessityof the angle exists.As a practical scene,we select an environment of cutter in the reprocessing ofspent fuel to simulated the dose at different part.Primarily we briefly introduce theknowledge on the reprocessing of spent fuel.then we analysis γ-ray source terms tohold the next part.and design a experimental scheme to text tungsten alloy shieldinggama rays of spent fuel in various energy. At last,we get two different shape wediscussed at PART3to test the effect of them in shielding the gama rays and illustratethe feasibility of its actual application...