This is a back-up instrument for the Bragg crystal X-ray spectrometer experiment flown in the pointed sail section on OSO-4, launched on 18 October, 1967. It was designed and built at the Naval Research Laboratory (NRL) by Talbot Chubb in Herbert Friedman's group. The spectrometer was transferred to NASM from NRL in 1982. It was acquired still in its original display box with other OSO-era solar instrumentation.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
United States of America
INSTRUMENTS-Scientific
NAVAL RESEARCH LABORATORY
3-D (Hex Board Storage): 116.8 × 61 × 20.3cm, 11.3kg (3 ft. 10 in. × 2 ft. × 8 in., 25lb.)
3-D (Spectrometer, X-ray, OSO-4): 101 × 26 × 9.5cm, 8.6kg (3 ft. 3 3/4 in. × 10 1/4 in. × 3 3/4 in., 19lb.)
Magnesium
Copper Alloy
Ferrous Alloy
Plastic
Unknown Coating
Paint
Electrical Wiring
A19840819000
Transferred from the Naval Research Laboratory
National Air and Space Museum
Usage conditions apply
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