The ^(27)Al(n,2n)^(26)Al cross section is of great interest for the waste disposal assessment of fusion reactor materials and fusion research.By the technique of accelerator mass spectrometry,we have measured the ^(26...The ^(27)Al(n,2n)^(26)Al cross section is of great interest for the waste disposal assessment of fusion reactor materials and fusion research.By the technique of accelerator mass spectrometry,we have measured the ^(26)Al/^(27)Al ratio of Al2O3 powder samples which were irradiated by a neutron beam.The neutron reaction cross section for ^(27)Al(n,2n)^(26)Al in the energy range of 14.8-14.9MeV are deduced.展开更多
We used transition radiation techniques instead of the original phosphor targets to improve the electronic beam diagnostic system at Beijing Free Electron Laser.The beam profile,size(3.3×2.4mm),position and diver...We used transition radiation techniques instead of the original phosphor targets to improve the electronic beam diagnostic system at Beijing Free Electron Laser.The beam profile,size(3.3×2.4mm),position and divergence angle(σrms=2.5mrad)in transverse have been obtained from optical transition radiation.We also present the experimental set-up and some preliminary results.展开更多
基金Supported by the SEDC Laboratory of Heavy Ion Physics,Peking University under Grant Nos.95016,95017.
文摘The ^(27)Al(n,2n)^(26)Al cross section is of great interest for the waste disposal assessment of fusion reactor materials and fusion research.By the technique of accelerator mass spectrometry,we have measured the ^(26)Al/^(27)Al ratio of Al2O3 powder samples which were irradiated by a neutron beam.The neutron reaction cross section for ^(27)Al(n,2n)^(26)Al in the energy range of 14.8-14.9MeV are deduced.
基金Supported in part by K.C.Wong Education Foundation in Hong Kong and Post-doctoral Foundation of China.
文摘We used transition radiation techniques instead of the original phosphor targets to improve the electronic beam diagnostic system at Beijing Free Electron Laser.The beam profile,size(3.3×2.4mm),position and divergence angle(σrms=2.5mrad)in transverse have been obtained from optical transition radiation.We also present the experimental set-up and some preliminary results.
