| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrogen gas concentration monitoring system capable of preventing deterioration of a sensor caused by hydrogen gas. ! SOLUTION: A hydrogen gas concentration monitoring system 400 according to an embodiment includes: a neutron hydrogen detection part 140 for acquiring information on the total hydrogen concentration by radiating fast neutrons, and thereby measuring the thermal neutron; state detection parts 110, 120, and 130 for acquiring information on the vapor concentration in a monitoring object atmosphere; and calculation part 200 for calculating the hydrogen concentration in the vapor on the basis of the measurement values measured by the state detection parts, and calculating the hydrogen gas concentration by deducting the hydrogen concentration in the vapor from the total hydrogen concentration. The calculation part 200 may also calculate the hydrogen gas concentration by calculating the vapor concentration on the basis of the measurement values measured by the st |
