description Minoru Oda Overview
Minoru Oda was a Japanese astrophysicist known for advancing observational X-ray astronomy. He invented the modulation collimator, an instrument that helped determine the positions of celestial X-ray sources despite the difficulty of focusing X-rays with conventional telescope optics. Oda also played a leading role in Japanese space astronomy, including the Hakucho X-ray satellite launched in 1979.
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What did Minoru Oda invent?
Oda invented the modulation collimator in 1965. Its parallel wire layers helped locate X-ray sources when ordinary focusing telescopes could not work effectively at X-ray wavelengths.
How did Oda's instrument help identify Sco X-1?
A 1966 rocket experiment using modulation collimators located Sco X-1 to within a few arc minutes, helping astronomers match the X-ray source to its optical counterpart. Sco X-1 is a landmark low-mass X-ray binary.
What was Minoru Oda's connection to Hakucho?
Hakucho, also called CORSA-b, was Japan's first X-ray astronomy satellite and launched on February 21, 1979. It carried Oda's modulation collimator and helped Japan study X-ray bursts.
What leadership roles did Minoru Oda hold?
He became director general of ISAS in 1984 and later served as president of RIKEN after retiring from ISAS in 1988. Oda died in Tokyo on March 1, 2001.
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