Research on γ-Heat in Core and φ63 Material Irradiation Channel of High Flux Engineering Test Reactor

In this paper, γ-Heat distributions in the current High Flux Engineering Test Reactor core and in the φ63 material irradiation channel of HFETR were calculated with MCNP code. The results of the calculation and analysis showed that the γ-Heat power distribution in the current core is 3.29MW, the power of fuel element is 62.8MW, which is respectively 4.7% and 89.7% of the core total power （70MW）. Theγ-Heat power distribution of the unit flux media in threeφ63 irradiation channel is as follows:3.016W/g in G7, 3.733W/g in P12, and 3.627W/g in P15.