Views
5 years ago

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

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

— i— -~ i t i I—

— i— -~ i t i I— 10" 4 h- io' L — y 1 / V 1 IO" 7 / in? -:* „ 9 10 iJ° (0 SO 10 i i — r~" — r —rr~ "i—"" t~~n~ p~— r~~ — i NEUTRON FLUX (n/cro 2 sec) >£ 550 X ^ / / X / s b00°C ^ y y J'.i // / /// y y y y y y / / v. i ,A. Atm. Fission Chamber ("He) J I Collection Voltage -lOOv J 1 10 100 1000 10000 REACTOR POWER (watts) Figure 2-7. Mean level ionization current as a function of reactor power (neutron flux) and gas temperature for a 1 atm. ^He-filled fission chamber. I

L 10 L T J I I 1C | NEUTRON FLUX (n/cm 2 sec) ,0 3 C = 600 pF 1 Atm. Fission Chamber ( Co: lection Voltage - lOOv 10 100 1000 RFACTOR POWER (watcs) . 4 i-le) X-J. Figure 2-8. Pulsed ionization chamber signal voltage as a function of reactor power (neutron flux) and gas temperature for a i atm. ^Hefilled fission chamber 10000