The research work, facilities, and results of NDT testing of space pyrotechnics in China using Neutron Radiography (NR) at the Tsinghua University swimming-pool reactor are introduced in this paper. The image quality ...The research work, facilities, and results of NDT testing of space pyrotechnics in China using Neutron Radiography (NR) at the Tsinghua University swimming-pool reactor are introduced in this paper. The image quality (NR) approached the standard of ASTM E 545-86 level I. NR experimental research of typical and possible defects was performed along with a theoretical analysis. The feasibility of using NR NDT (non-destructive testing) for space pyrotechnics was proven experimentally. Space detonating cord is tested with Neutron Radiography. The detonating cord with artificial explosive charge defects as a reference is put into every neutron radiography film. Slagging of the lead cladding and explosive charge inhomogeneity are discovered.展开更多
文摘The research work, facilities, and results of NDT testing of space pyrotechnics in China using Neutron Radiography (NR) at the Tsinghua University swimming-pool reactor are introduced in this paper. The image quality (NR) approached the standard of ASTM E 545-86 level I. NR experimental research of typical and possible defects was performed along with a theoretical analysis. The feasibility of using NR NDT (non-destructive testing) for space pyrotechnics was proven experimentally. Space detonating cord is tested with Neutron Radiography. The detonating cord with artificial explosive charge defects as a reference is put into every neutron radiography film. Slagging of the lead cladding and explosive charge inhomogeneity are discovered.
