Publications by authors named "Harri Toivonen"

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On the symmetry of photon detection arrays: A directionally sensitive 3D model.
Harri Toivonen, Mark Dowdall, Sakari Ihantola

Appl Radiat Isot· April 2024

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Efficiency calibrations of radiation detectors for source localization and characterization at long source-detector distances for gamma and neutron sources.
Harri Toivonen, Mark Dowdall, Martin Baron, Emily Kroeger

Appl Radiat Isot· August 2023

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Angular insensitivity of a gamma spectrometer for in-field applications.
Harri Toivonen, Mark Dowdall

Appl Radiat Isot· January 2023

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Design of a novel instrument for active neutron interrogation of artillery shells.
Camille Bélanger-Champagne, Hannes Vainionpää, Pauli Peura, Harri Toivonen, Paula Eerola

PLoS One· December 2017

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Erratum: Optical detection of radon decay in air.
Johan Sand, Sakari Ihantola, Kari Peräjärvi, Harri Toivonen, Juha Toivonen

Sci Rep· April 2016

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Optical detection of radon decay in air.
Johan Sand, Sakari Ihantola, Kari Peräjärvi, Harri Toivonen, Juha Toivonen

Sci Rep· February 2016

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Determination of (235)U, (239)Pu, (240)Pu, and (241)Am in a nuclear bomb particle using a position-sensitive α-γ coincidence technique.
Kari A Peräjärvi, Sakari Ihantola, Roy C Pöllänen, Harri I Toivonen, Jani A Turunen

Environ Sci Technol· February 2011

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Radiation surveillance using an unmanned aerial vehicle.
Roy Pöllänen, Harri Toivonen, Kari Peräjärvi, Tero Karhunen, Tarja Ilander

Appl Radiat Isot· February 2009

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Airborne gamma spectrometry--towards integration of European operational capability.
Harri Toivonen

Radiat Prot Dosimetry· January 2005

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Low level noble gas measurements in the field and laboratory in support of the Comprehensive Nuclear-Test-Ban Treaty.
Trevor J Stocki, Marc Bean, R Kurt Ungar, Harri Toivonen, Weihua Zhang

Appl Radiat Isot· August 2004

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