Views
5 years ago

Applying the pulsed ion chamber methodology to full range reactor ...

Applying the pulsed ion chamber methodology to full range reactor ...

Table 4-1 Gamma

Table 4-1 Gamma Compensation Data 4-2 Neon Data 4-3 Argon Data LIST OF TABLES IV Page 53 7A 76

LIST OF FIGURES Figure Page 1-1 Typical environmental profile for neutron sensors in 3 PWR at full power ana at shutdown, 3 1-2 Typical ranges and detectors used 'in ex-core systems to cover the source, intermediate and power ranges. 5 1-3 Typical ranges and detectors used in in-core systems to cover the source, intermediate and power ranges. 6 2-1 Results of PIC system with 1 atmosphere "He chamber. 12 2-2 Charge density within a 1 atmosphere argon filled miniature fission chamber. S = 10 7 ion pairs/sec, 300°K. 17 2-3 Charge density within 1 atmosphere argon filled miniature fission chamber. S = 10 13 ion pairs/sec, 300°K. 18 2-4 Pulse height versus source rate. 1 atmosphere argon-filled miniature fission chamber at 300°K. 19 2-5 Pulse height versus source rate. 1 atmosphere neon-filled miniature fission chamber at 309°K. 20 2-6 Gamma Compensation as a function of gamma field strength. 23 2-7 Mean level ionization current as a function of reactor power (neutron flux) and gas temperature for a 1 atmosphere 1+ Hef Tiled fission chamber. 24 2-8 Pulsed ionization chamber signal voltage as a function of reactor power (neutron flux) and gas temperature for a 1 atmosphere ^He-filled fission chamber. 25 3-1 Block diagram of full range single sensor reactor powermeasurement, system. 28 3-2 Block diagram of the prototypic digital computer base PIC reactor power control system. 31