Recent results on gamma spectrometric measurements at lngs matthias laubenstein i n f n l n g s
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RECENT RESULTS ON GAMMA SPECTROMETRIC MEASUREMENTS AT LNGS Matthias Laubenstein I.N.F.N. - L.N.G.S. Recent developments.

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Recent results on gamma spectrometric measurements at lngs matthias laubenstein i n f n l n g s

RECENT RESULTS ON GAMMA SPECTROMETRIC MEASUREMENTS AT LNGS

Matthias Laubenstein

I.N.F.N. - L.N.G.S.


Recent developments
Recent developments

  • two new Germanium detectors, similar to GeMPI detector (in fact they are called GeMPI-2 and GeMPI-3, GeMPI-2 still under test; GeMPI-3 arrived on October 25th, shielding still to be built)

  • new space available in hall A … but it is already almost filled up …

GERDA Meeting @ Tübingen, TG 11


Material screening old data expanded uncertainties and decision thresholds with k 2
Material screening (old data)(expanded uncertainties and decision thresholds with k=2)

GERDA Meeting @ Tübingen, TG 11


Material screening with new data expanded uncertainties and decision thresholds with k 2
Material screening (with new data)(expanded uncertainties and decision thresholds with k=2)

GERDA Meeting @ Tübingen, TG 11


Forthcoming results and analyses
Forthcoming results and analyses

  • Lexan

  • electronic components (in measurement also for other experiments, but up to know nothing “clean”, O(hundreths of Bq/kg)

  • Kapton coax cable (only 30 g, now ca. 12 days)

GERDA Meeting @ Tübingen, TG 11


Still the same question marks
Still the same question marks

  • Time schedule for measurements ?

  • List of materials to be measured ?

  • Required sensitivities ?

  • Intercomparison between radioactivity analysis laboratories ?

  • Intercomparison between screening techniques ?

GERDA Meeting @ Tübingen, TG 11