CERAMIC VACUUM ULTRAVIOLET ION CHAMBERS
>A new ceramic ion chamber for making vacuum ultraviolet radiation measurements in the laboratory and outside the earth's atmosphere was developed. This detector has excellent electrical insulating properties and a high work function. It is practically imperviable to the toxic effects of gases. An improved window-sealing technique aids in prolonging the life span of this ion chamber. A detailed description of the fabrication, gas filling, and sealing techniques is given. The ion chamber calibration procedure is briefly outlined. The usefulness of the chamber in the 1050 to 1500A spectral region is noteworthy because the detector can be made to operate over a relatively narrow bandpass with a sharp cutoff (rejection of photons) on either side of the selected wavelength region. Other useful properties include the high quantum yield, the extremely low noise level, and the capability to serve as a gas-gain multiplier. (auth)
- Research Organization:
- National Aeronautics and Space Administration. Goddard Space Flight Center, Greenbelt, Md.
- NSA Number:
- NSA-16-014353
- OSTI ID:
- 4801383
- Report Number(s):
- NASA-TN-D-1180
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-62
- Country of Publication:
- United States
- Language:
- English
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