A segmented target chamber for (n, p) studies at TRIUMF

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Abstract

We have developed an (n, p) target chamber consisting of six target layers sandwiched between seven gas detector layers. This target chamber is now commonly used with the new (n, p) facility at TRIUMF. With this arrangement, large total (n, p) target thicknesses (> 1 g/cm2) can be used and yet the target contribution to overall energy resolution is moderate, typically less than 500 keV. The simultaneous accumulation of data from six target layers has proven to be highly advantageous with a number of applications, such as; (1) using multiple thicknesses of one target material, (2) including a target of known cross-section in the target stack for normalization, (3) adding a target to obtain simultaneous spectra for later subtraction of contamination lines and (4) the use of several target materials at once.

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Supported in part by Natural Sciences and Engineering Research Council of Canada.

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Also associated with University of Melbourne, Australia.

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Also associated with University of Western Ontario.

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Also associated with University of Toronto.

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Also associated with Simon Fraser University.

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Also associated with University of Alberta.

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