Computer Science – Sound
Scientific paper
Mar 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ell....14..126g&link_type=abstract
Electronics Letters, vol. 14, Mar. 2, 1978, p. 126, 127.
Computer Science
Sound
Amplifier Design, Counting Circuits, Low Noise, Photomultiplier Tubes, Preamplifiers, Rocket-Borne Instruments, Rocket Sounding, Spaceborne Astronomy, Spacecraft Electronic Equipment, Transistor Amplifiers
Scientific paper
A charge-sensitive preamplifier has been developed for use with photomultipliers in fast photon-counting applications. The device has the following characteristics: linear response of 1.04 x 10 to the 15th mV/C between 10 to the -15th and 10 to the -12th C; input noise not less than 660 rms electrons, and pulse repetition rate not greater than 3 x 10 to the 6th pps. It was specifically designed for a rocket-borne astronomical application, in which amplification of single photoelectrons from a photomultiplier cathode permitted detection of single X-ray photons by a phosphorus-photocathode sensor. The spaceflight environment required optimization of the design to achieve low weight (12 g), small size (25 x 45 x 13 mm) and high reliability under rugged conditions. A circuit diagram is presented along with a figure illustrating the basic parameters of the device.
Bedford David K.
Grainger G.
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