초록 ▼

A nuclear reactor flux mapping system having a plurality of neutron detectors operable to be driven into and out of a reactor core along any one of a number of pre-established paths. The detectors, corresponding drives (22) and drive controllers (28) are arranged into at least two physically separat

A nuclear reactor flux mapping system having a plurality of neutron detectors operable to be driven into and out of a reactor core along any one of a number of pre-established paths. The detectors, corresponding drives (22) and drive controllers (28) are arranged into at least two physically separate and functionally independent channels. Each channel is respectively arranged to scan complementary paths through the core during normal system operation. At least two, redundant, functionally independent and physically separate “command end of processing”channels (31 and 33) are provided. Each of the command and processing channels (30) are independently operable to automatically, programmably sequence the detector scans and process the detector output data on all of the detector channels while being electrically buffered from each detector channel through two-ported memories (36) in a manner to prevent faults on any of the channels from disabling any of the other system channels. Each detector channel is operable to scan the entire core in the event the other detector channel should prove inoperable.

대표청구항 ▼

An improved nuclear reactor flux mapping system including a plurality of neutron detectors operable to be driven into and out of the reactor core along any one of a number of pre-established paths wherein the improvement comprises the detectors, corresponding drives and drive controllers being arran

An improved nuclear reactor flux mapping system including a plurality of neutron detectors operable to be driven into and out of the reactor core along any one of a number of pre-established paths wherein the improvement comprises the detectors, corresponding drives and drive controllers being arranged into at least two physically separate and functionally independent channels, each channel respectively arranged to scan complementary paths through the core and at least two redundant, functionally independent and physically separate “command and processing”channels each independently, redundantly, alternatively operable to automatically sequence the detector scans and process the detector output data on all of the detector channels while being electrically buffered from each detector channel in a manner to prevent faults on any of the detector channels from disabling either command and processing channel.