Abstract
The signal supplied to the amplifier from the preamplifier (Sect. 6.4.5) in a nuclear spectroscopy system is usually a “tail” pulse (Fig. 7–1) with a 50- to 100-μsec tail time constant and a rise time of 20 to 100 nsec (to rise from 10 to 90% of top value). The amplitude of this pulse will be directly proportional to the energy of the nuclear event taking place in the detector since the preamplifier has a fixed gain.
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References and Notes
K. F. Hatch, Analysis and description of a high stability nuclear pulse amplifier, IEEE Trans. Nucl. Sci., NS-13:351, 767 (1966). Description of the design and analysis of the nuclear pulse amplifier developed at Lawrence Radiation Laboratory, Livermore.
R. E. Bell, Comparison of leading-edge and crossover timing in coincidence measurements, Nucl. Instr. Meth. 42:211 (1966).
R. L. Chase, Pulse timing systems for use with gamma rays on Ge(Li) detectors, Rev. Sci. Instr., 39:1318 (1968). A complete description of constant fraction timing.
K. F. Hatch, Aspects of resolution degradation in a nuclear pulse analyzer system, IEEE Trans. Nucl. Sci., NS-15:303 (1968). A discussion of the various problems at low and high rates that effect resolution.
V. Radeka, Effect of baseline restoration on signal-to-noise ratio in pulse amplitude measurements, Rev. Sci. Instr., 38:1397 (1967).
F. S. Goulding, Semiconductors for nuclear spectrometry. I, Nucl. Inst. Meth., 43:1 (1966). A complete description of the nuclear spectrometry system with emphasis on Ge(Li) detectors. A good basic section on pulse amplifiers and shaping is included.
See also: E. Fairstein and J. Hahn, Nuclear pulse amplifiers—Fundamentals and design practice, Nucleonics, 23 (July, September, and November 1965); 24 (January and March 1966).
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© 1973 Plenum Press, New York
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Hatch, K.F. (1973). Amplifiers. In: Krugers, J. (eds) Instrumentation in Applied Nuclear Chemistry. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-1953-5_7
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DOI: https://doi.org/10.1007/978-1-4684-1953-5_7
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