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Silicon Junctions as Particle Spectrometers

Both Au-Si surface barriers and silicon p-n junctions operate satisfactorily as particle spectrometers. The use of high resistivity material gives a depletion region wide enough to stop high-energy protons, α particles, and heavier ions. A resolution of 16 kev (width at half-maximum) for 6.04 mev α...

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Published in:I.R.E. transactions on nuclear science 1960-06, Vol.7 (2/3), p.195-199
Main Authors: McKenzie, J. M., Waugh, J. B. S.
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description Both Au-Si surface barriers and silicon p-n junctions operate satisfactorily as particle spectrometers. The use of high resistivity material gives a depletion region wide enough to stop high-energy protons, α particles, and heavier ions. A resolution of 16 kev (width at half-maximum) for 6.04 mev α particles is obtained with a junction depletion layer sufficient to stop 10 mev α particles. With the depletion region very close to the surface, ß particles in the range from 10 kev to several hundred kev are detectable. The pulse amplitude distribution from Co 57 indicates the presence of the two well-known lines at 115 and 129 kev. An attempt has been made to correlate the observed performance with the semiconductor parameters and the diode static characteristics.
doi_str_mv 10.1109/TNS2.1960.4315764
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identifier ISSN: 0096-2015
ispartof I.R.E. transactions on nuclear science, 1960-06, Vol.7 (2/3), p.195-199
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2374-9814
language eng
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source IEEE Xplore (Online service)
subjects ABSORPTION
ALPHA PARTICLES
BETA PARTICLES
Capacitance
CHARGED PARTICLES
COBALT 57
Counting circuits
Detectors
DIAGRAMS
DIODES
DISTRIBUTION
ENERGY LEVELS
ENGINEERING AND EQUIPMENT
GOLD
IONS
PROTONS
PULSES
RESOLUTION
Semiconductor diodes
SEMICONDUCTORS
Signal resolution
SILICON
SPECTROMETERS
Spectroscopy
Statistics
title Silicon Junctions as Particle Spectrometers
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