-------------------------------------------------------------------- Routine Pulse Yield Maximum Pulse Yield 1.5 × 10¹⁷ Fissions 2.1 × 10¹⁷ Fissions -------------------------------------------------------------------- Kerma in Tissue (ergs/gm) P1[5] 1.6 × 10⁸ 2.2 × 10⁸ P2 4.9 × 10⁷ 6.8 × 10⁷ P3 4.1 × 10⁵ 5.7 × 10⁵ Kerma Rate in Tissue (ergs/gm/sec) P1 3.5 × 10¹² 4.7 × 10¹² P2 1.1 × 10¹² 1.5 × 10¹² P3 8.8 × 10⁹ 1.2 × 10¹⁰ [5] P1: Center of Glory Hole; P2: Core Surface; P3: 1 Meter from Core Center. [Illustration] [Illustration] [Illustration] [Illustration] Table VII. Kerma and Kerma Rate in Silicon for APRFR Exposure Conditions -------------------------------------------------------------------- Routine Pulse Yield Maximum Pulse Yield 1.5 × 10¹⁷ Fissions 2.1 × 10¹⁷ Fissions -------------------------------------------------------------------- Total Kerma in Silicon, ergs/gm[6] P1[7] 2.7 × 10⁶ 5.2 × 10⁶ P2 1.1 × 10⁶ 1.6 × 10⁶ P3 9.5 × 10³ 13.3 × 10³ Total Kerma Rate in Silicon, (ergs/gm/sec) P1 5.8 × 10¹⁰ 11.0 × 10¹⁰ P2 2.4 × 10¹⁰ 3.5 × 10¹⁰ P3 2.0 × 10⁸ 2.9 × 10⁸ [6] Ionization and elastic recoil processes contribute roughly equal amounts to the total kerma. [7] P1: Center of Glory Hole; P2: Core Surface; P3: 1 Meter from Core Center. Table VIII. Neutron-to-Gamma Dose Ratios[8] ----------------------------------------------------------------- neutron rads tissue n/cm²/sec ------------------- ----------------- gamma rads tissue gamma rads tissue ----------------------------------------------------------------- Core Center (P1) 10 2.7 × 10⁹ Core Surface (P2) 10 2.7 × 10⁹ 1 Meter from Core Center (P3) 9 3.3 × 10⁹ 10 Meters from Core Center 7 2.5 × 10⁷ [8] Representative data. Actual values influenced by core operating history. [Illustration: Cross Section of Reactor Building] APRF User Support Facilities APRF is designed and staffed to assist its users in all key areas relating to reactor utilization.