C276合金质子辐照损伤模拟及活化分析靳忠敏.pdf

436 Vol. 43, N o. 6 20096 Atomic Energy Science and T echnology Jun. 2009 C276 靳忠敏, 陈义学, 韩静茹, 陆道纲 ( , 02206) : C276 TRIM 0 20 M eV C276 , DPA FISPACT-2007, : , C276 , , : C276; ; ; TRIM ; :TL34 :A : 000-693 ( 2009) 06-050 -04 Simulation of Proton Irradiation Damage and Activation Analysis for C276 Alloy JIN Zhong-min, CH EN Y-i xue, HAN Jing-ru, LU Dao-gang (N or th Ch ina E lectr ic P ow er Univ er sity , School of N uclear Sc ience and E ng ineer ing , B e ij ing 02206, China) Abstract: C276 alloy is one of the candidate cladding materials in advanced nuclear pow er plants. In this w ork, the distributions of irradiation damage w ere calculated by the T RIM code about energy loss, target displacements and DPA of C276 irradiated by protons w ith energy of 0 and 20 MeV, and there w ere comparisons among them as w ell. T he activation calculations of C276 w ere carried out w ith the FISPACT-2007 code at the same time. T he activity , afterheat and contact dose rate during different cooling time after shutdow n w ere described in detail. T he result indicates that electronic energy loss is the main part of irradiation damage, high-energy protons get low er probability of collision. In the case of the same energy protons irradiation, the activation characteris- tics increase w ith increasing irradiation time. With the same irradiation time, high energy protons w ould have a greater impact on materials. This w ork will provide support for the molecular dynamics simulation and the planning of the proton irradiation project. Key words: C276; proton; irradiation damage; T RIM code; acti