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在n-γ混合场中,普遍采用双探测器测量生物组织的中于吸收剂量。当用组织等效电离室(T)和光子剂量计(U)组合,测量中子吸收剂量(D_n)和伴随的γ剂量(D_γ)时,将有如下方程组:
In n-gamma hybrid fields, it is common to use dual detectors to measure the mid-absorbed dose of biological tissue. When measuring the neutron absorbed dose (D_n) and the accompanying gamma dose (D_γ) with the tissue equivalent ionization chamber (T) and the photon dosimeter (U), there will be the following equations: