Entity

Time filter

Source Type


Trademark
Flir Detection Inc. and FLIR Radiation GmbH | Date: 2012-11-06

Handheld spectroscopic nuclear detection instruments, detectors for the measurement of nuclear radiation, including alpha, beta and gamma radiation, x-rays and neutrons; photomultipliers and multi channel analyzers; data processing equipment and computers for the detection of radiation.


Trademark
Flir Detection Inc. and FLIR Radiation GmbH | Date: 2012-11-06

Handheld spectroscopic nuclear detection instruments, detectors for the measurement of nuclear radiation, including alpha, beta and gamma radiation, x-rays and neutrons; photomultipliers and multi channel analyzers; data processing equipment and computers for the detection of radiation.


Patent
FLIR Radiation GmbH | Date: 2010-11-29

A method for correctly identifying at least one source, in particular at least one nuclide, enclosed in a human body and/or a container, is provided, the method comprising the following steps: detecting and measuring the at least one source by means of a gamma spectroscopic device; identifying, in a first estimation step, the at least one source by means of a standard nuclide identification procedure for evaluating a measured first spectrum of the at least one source; applying a second estimation step on the basis of the result of the first estimation step, wherein the result of the first estimation step is used for acquiring a plurality of second spectra of the at least one source found by the standard nuclide identification procedure for a plurality of absorption scenarios and for a plurality of scattering scenarios; and comparing the measured first spectrum with a scatter and absorber spectrum obtained from the plurality of second spectra generated in the second estimation step.


Trademark
Flir Detection Inc. and FLIR Radiation GmbH | Date: 2012-11-27

Handheld spectroscopic nuclear detection instruments, detectors for the measurement of nuclear radiation, including alpha, beta and gamma radiation, x-rays and neutrons; photomultipliers and multi channel analyzers; data processing equipment and computers for the detection of radiation.


Pausch G.,FLIR Radiation GmbH | Herbach C.-M.,FLIR Radiation GmbH | Mitchell D.,Sandia National Laboratories | Lentering R.,FLIR Radiation GmbH | Stein J.,FLIR Radiation GmbH
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2012

Passive radiation detection systems have been developed to screen passengers, vehicles, and cargo for illicit radioactive sources by measuring gamma and neutron signatures with separate, specialized sensors. The paper introduces a novel concept combining neutron and gamma sensing in a single detector, thus reducing the overall expense. Low-cost converter media capture thermal neutrons and commute neutron flux in energetic gammas, which are then detected by a common gamma detector. Energy signals above 3 MeV indicate the neutron captures. Two prototype systems are presented: (1) The NCD-BGO, a segmented 655 ml BGO scintillator with embedded Cd absorber, demonstrated an intrinsic thermal-neutron detection efficiency of about 50%. (2) The PVTNG, comprising 75 l of PVT scintillator complemented with PVC panels, exhibited a neutron sensitivity of 1.9 cps/ng of 252Cf, thus almost meeting the corresponding requirement for Radiation Portal Monitors. Moreover, an unconventional construction of scintillator and light readout, combined with innovative electronics and proper detector stabilization, improved the gamma detector performance noticeably and enabled nuclide identification. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).

Discover hidden collaborations