Arktis Radiation Detectors Ltd.

Ulisse Antonio Gendotti

Rico Chandrasekharan

Giovanna Davatz

David Murer

Leonard Goeltl

Christoph Philipp

Mohsen Meshkian

Davide Cester

Leonard GÖLTL

A panel radiation detector is provided for detecting radiation event(s) of ionizing radiation, comprising a plurality of adjoining plastic scintillator slabs, a plurality of silicon photomultiplier sensors arranged at an edge of at least one of the plastic scintillator slabs) and configured to detect scintillation light generated in the scintillator slabs responsive to the radiation events, and a plurality of signal processing units each connected to one of the silicon photomultiplier sensors, wherein the signal processing units each comprise a digitization circuit configured to generate a digitized signal for signal analysis by executing 1-bit digitization of a detection signal generated by at least one of the silicon photomultiplier sensors responsive to the detected scintillation light for determining the energy of the detected radiation event(s).

Panel radiation detector comprising a plurality of adjoining plastic scintillator slabs and a plurality of silicon photomultiplier (SiPM) sensors

A method for characterizing a radiation source by a radiation portal monitoring system is described, the radiation portal monitoring system including a plurality of detectors including radiation detectors configured to detect ionizing radiation of the radiation source and to generate a detection signal responsive to detection of the ionizing radiation, and a control system including at least one processor executing the steps of: assigning an identification address to each detector; selecting a set of at least two detectors using the identification addresses; assigning an effective portal area to the selected set of detectors; receiving via a communication network a detection signal generated by the detectors of the selected set, using the identification addresses of the detectors of the selected set; and characterizing the radiation source associated with the effective portal area using the detection signal of the detectors of the selected set.

Method for characterizing a radiation source by a radiation portal monitoring system

A neutron conversion foil for being used in a neutron detector includes a substrate having a first and second side. The substrate is covered at least on one of the first and second sides with a neutron conversion layer made of a neutron reactive material and being capable of capturing neutrons to thereafter emit light and/or charged particles. The neutron conversion foil is transparent to light such that light originating from the conversion of neutrons can pass through one or several of the neutron conversion foils and thereafter be collected and detected by a light sensing device.

Neutron conversion foil, neutron detecting device with such a foil, and method for operating such a neutron-detecting device

The invention relates to an improved method for detecting and possibly identifying and/or characterizing nuclear and/or radiological material in a container, vehicle, or on a person, comprising the steps of: a. providing at least one detector, which is capable of detecting radiation events being interrelated to nuclear or radiological material; b. bringing the at least one detector in the vicinity of the container, vehicle or person to be monitored; c. detecting radiation events being interrelated to the container, vehicle or person to be monitored; d. assigning each detected radiation event an individual time stamp in order to generate a time pattern of the detected radiation events; and e. analyzing the time pattern with respect to time correlation structures in order to identify a presence and/or characteristics of the nuclear or radiological material.

Method for detecting and identifying nuclear material in a container and radiation monitoring arrangement for conducting the method

A detector arrangement () for the detection of ionizing radiation comprises at least one light sensing device () and a multifunctional coating () arranged in an interacting relation to said at least one light sensing device (), whereby said multifunctional coating () is configured to perform the functions of reflecting light of a given wavelength; and converting at least part of thermal and/or epi-thermal neutrons entering said multifunctional coating () into light ().

Detector arrangement for the detection of ionizing radiation and method for operating such a detector arrangement

The invention relates to a method for obtaining information or signatures about the presence or the nature of a nuclear radiation source, especially in a homeland security application, said nuclear radiation source emitting in a time or angle correlated manner at least a first radiation and a second radiation. The method includes the steps of detecting said first radiation with at least one first radiation detector and detecting said second radiation with at least one second radiation detector. The detection of said second radiation is triggered by said detection of said first radiation in a manner that is adapted to the radiation's correlation structure, thereby increasing the signal-to-background ratio for the detection of said second radiation.

Method for obtaining information signatures from nuclear material or about the presence, the nature and/or the shielding of a nuclear material and measurement setup for performing such method

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Zurich, Switzerland

Ulisse Antonio Gendotti