| 摘要 |
A detector arrangement, consisting of a radiation detector (2) and an absorption filter (12, 13), for measuring an ionising radiation contains on a carrier tube (1) a central filter part (12) which just covers the active volume (6) of the radiation detector (2) and compensates for the energy-dependence. On both sides of the central filter part (12), part-filters (13) predominantly formed by rings, are arranged on the carrier tube (11), the spacing and material of which part-filters are dimensioned in such a manner that the detector arrangement exhibits a direction- and energy-independent characteristic. Such absorption filters are relatively easily dimensioned and simple to produce. <IMAGE>
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