| 摘要 |
PROBLEM TO BE SOLVED: To improve quantitative property of data in simultaneous collection method for emission data and transmission data by mask data collection method. SOLUTION: When equal outputs are generated from all pair of detectors 11, address signal via a T mask processing circuit 14 and an E mask processing circuit 15 are lead to a TCD memory 23 and an ECD memory 25 to collect TCD data and ECD data. By using the data, an emission data Et corrected for E mask sensitivity nonuniformity with an E mask sensitivity correction circuit 27 is obtained and T mask sensitivity nonuniformity is corrected with the T mask sensitivity correction circuit 26 and real transmission data Tt omitted for emission data is obtained.
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