Passive sheilding design and simulation of antineutrino sensor for monitoring nuclear reactors

As it is known that nuclear reactors are the powerplants that produce energy as a result of Fusion reactions. While the big nucleus transforms the small nucleuses, the lost mass turns into radiant density. By using this radiant density, the elect-ricry is produced. As a result of every single fusion 6 notrinos occur. For this rea-son nuclear reactors are the source of a dense notrino. By monitoring nuclear reactor with antinotrino dedector, We can be informed about the situation and Thermal power of nuclear reactors. The new dedector will be composed of two parts as inner and external areas. The inner area will be used to detect antinotri-nos and the external area will be used to isolate the inner area from other partic-les. External area will be divided into two parts as active and passive armouring. We aimed that the active armouring will exculuse muon particles and the passive armouring will stop charged and uncharged particles. Our thesis will compose the passive armouring of this reactor. To do this GEANT4 simulation programme is used and which substance should be used is decided according to GEANT4 da-tas. In our thesis We will scrutinize the simulation studies that belongs to our New decector's passive armouring side.