10-12 April 2013
INFN - Laboratori Nazionali del Gran Sasso
Europe/Rome timezone

Initial Characterization of Unequal-Length, Low-Background Proportional Counters for Absolute Gas-Counting Applications

11 Apr 2013, 15:00
1h 20m
E. Fermi auditorium (INFN - Laboratori Nazionali del Gran Sasso)

E. Fermi auditorium

INFN - Laboratori Nazionali del Gran Sasso

SS 17 bis, km 18 + 910, 67100 Assergi (AQ), Italy
poster Screening facilities and low background detectors Poster session

Speaker

Emily Mace (Pacific Northwest National Laboratory)

Description

Characterization of two sets of custom unequal length proportional counters is underway at Pacific Northwest National Laboratory (PNNL). These detectors will be used in measurements to determine the absolute activity concentration of gaseous radionuclides (e.g., 37Ar). A set of three detectors has been fabricated based on previous PNNL ultra-low-background proportional counters (ULBPC) designs and now operate in PNNL’s shallow underground counting laboratory. A second set of four counters has also been fabricated using clean assembly of OFHC copper components for use in an above-ground counting laboratory. Characterization of both sets of detectors is underway with measurements of background rates, gas gain, energy resolution, and shielding considerations. These results will be presented along with uncertainty estimates of future absolute gas counting measurements.

Primary author

Emily Mace (Pacific Northwest National Laboratory)

Co-authors

Dr Allen Seifert (Pacific Northwest National Laboratory) Anthony R. Day (Pacific Northwest National Laboratory) Brian LaFerriere (Pacific Northwest National Laboratory) Cory T. Overman (Pacific Northwest National Laboratory) Dr Craig E. Aalseth (Pacific Northwest National Laboratory) Dr Eric W. Hoppe (Pacific Northwest National Laboratory) Erin S. Fuller (Pacific Northwest National Laboratory) Dr James C. Hayes (Pacific Northwest National Laboratory) Jason Merriman (Pacific Northwest National Laboratory) Dr Ricco M. Bonicalzi (Pacific Northwest National Laboratory) Dr Richard M. Williams (Pacific Northwest National Laboratory)

Presentation Materials

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