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Proportional response photon counter
Review of Scientific Instruments, 1980A scintillation counter whose detection efficiency is linearly proportional to the energy of the interacting photon has been developed by combining a suitable filter with a conventional NaI(Tl) crystal. A general theory has been developed from which the material and optimum filter thickness for a particular crystal valid for a certain photon energy ...
S. C. Roy, S. Mitra, A. K. Sinha
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The Scintillation Counter as a Proportional Device
Review of Scientific Instruments, 1949The statistical distribution of fluctuations in the gain of a 1P21 photo-multiplier tube has been investigated and standard deviations of 36 percent to 48 percent have been found. The distribution in photo-multiplier output pulse heights obtained with Po alphas incident on a ZnS screen has also been investigated and standard deviations of 27 percent to
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Boron trifluoride proportional counters
Proceedings of the IEE - Part B: Radio and Electronic Engineering, 1958The design and manufacture of a variety of types of boron-trifluoride proportional counter used by the U.K.A.E.A. are described. One basic design and method of assembly is used for the manufacture of counters of sizes ranging from ½ in diameter and a few inches long to 2 in diameter and several feet long.
W. Abson, P.G. Salmon, S. Pyrah
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A gas proportional scintillation counter
Nuclear Instruments and Methods, 1967Abstract The effect of a radial electric field on the scintillations produced in argon by alpha particles from a ThB source was studied. Following the fast primary scintillation there is a second slower component that increases with the field and shows an intrinsic energy resolution of about 2.3%.
C.A.N. Conde, A.J.P.L. Policarpo
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The Gas Scintillation Proportional Counter on EXOSAT
Space Science Reviews, 1981The inclusion of a gas scintillation proportional counter (GSPC) within the EXOSAT payload complement significantly improves the spectroscopic capability of the mission. This broad-band medium energy spectrometer used in conjunction with the large area proportioni counter array (ME) should provide additional spectroscopic details on strong X-ray ...
B. G. Taylor +7 more
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The use of polycarbonate in proportional counters
Review of Scientific Instruments, 1992Proportional counters are relatively sensitive to contamination through outgassing and the range of electrical insulators suitable for use in their manufacture is quite limited. Although small amounts of plastics such as polychlorotrifluoroethylene have been used as feedthroughs, ceramics are most commonly used when sealed counters with long lives are ...
Alan Smith, M. W. Trow
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Proportional Counters in Corona Region
Review of Scientific Instruments, 1952The behavior of cylindrical counters filled with argon of various purities has been studied in the corona discharge zone. In this zone the counters act in a normal proportional manner with regard to the detection of α-particles. The amplitude of pulses obtained is found to be independent of applied voltage over an interval of about 1000 volts.
Emilio Gatti, Laura Colli, Ugo Facchini
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Multiwire proportional counters
1970The aim of this work is twofold: first, to develop a multilayered multiwire proportional chamber which would be useful as a position-sensitive detector in tracking the path of a beam of elementary particles and identifying the particles by their energies; and second, to measure the operating characteristics of such a chamber.
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The gas scintillation proportional counter
Nuclear Instruments and Methods in Physics Research, 1984The gas scintillation proportional counter has seen rapid development in recent years as a broad-band spectrometer for X-ray astronomy. It may be used in the conjunction with grazing incidence optics or coded aperture masks to produce spectral images of the X-ray sky.
B. G. Taylor +2 more
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A multi-anode proportional counter
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1994Abstract A neutron detector has been designed and constructed which contains seven independent anodes inside a cylindrical envelope. The inside of the detector contains one anode element in the center and the other six elements arranged in a ring surrounding the center element. Each element acts as an independent proportional counter, but because all
Wendell Pulley +2 more
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