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Alpha Emitter Intrinsic Concentration in Copper required for Nuclear Spectrometry Application



A Camacho, G Jaworski, G Keppel and L Sajo-Bohus


Low-level radioactivity content in copper are employed for bolometric thermal radiation sensors and astro-nuclear spectrometers. The required lowest achievable alpha emitters concentration, for treated and untreated surfaces, are measured by Double Sided Silicon Strip Detectors in a high vacuum chamber and provide information on its intrinsic NORM content. Results shows that copper alpha emitters content can be achieved in the range below 0.01 (counts. keV-¹·kg-¹·y-¹) adequate for specific nuclear spectrometry applications.


alpha emitter; copper; nuclear spectrometer, self radiation


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