A system for surveying a surface (2) to measure a physical or chemical property associated with the surface. The system includes a handheld probe (4) measuring a physical or chemical property at locations over a surface (2). The video camera (12) captures video data of a user (6) using the handheld probe (4) to survey the surface. The depth sensing device (14) measures the distance to the handheld probe (4). Processing circuitry identifies the handheld probe from the video data and determines the position of the handheld probe (4) relative to the surface (2). A data recorder and/or a data transmitter records and/or transmits data representative of the physical or chemical property measured by the handheld probe (4) and data representative of the associated position of the handheld probe, when the handheld probe (4) is determined to be less than a threshold distance from the surface (2) being surveyed.

A system for surveying a surface (2) to measure a physical or chemical property associated with the surface. The system includes a handheld probe (4) measuring a physical or chemical property at locations over a surface (2). The video camera (12) captures video data of a user (6) using the handheld probe (4) to survey the surface. The depth sensing device (14) measures the distance to the handheld probe (4). Processing circuitry identifies the handheld probe from the video data and determines the position of the handheld probe (4) relative to the surface (2). A data recorder and/or a data transmitter records and/or transmits data representative of the physical or chemical property measured by the handheld probe (4) and data representative of the associated position of the handheld probe, when the handheld probe (4) is determined to be less than a threshold distance from the surface (2) being surveyed.

The presence of chlorine and nitrogen are determined and measured using a non-invasive portable neutron-generating and gamma ray detecting system(s). Portable devices of the present invention can also be used to detect chlorine and/or nitrogen-containing underground objects rapidly and on-site. Devices and systems described herein can be operated remotely and pre-programmed with search patterns, guided by an operator remotely, or programmed to home in on high-chlorine and/or nitrogen concentration areas.

The present invention relates to an apparatus for determining the location of a radiation source. The apparatus for determining the location of a radiation source according to the present invention comprises: a collimator part for selectively passing radiation therethrough according to the direction in which the radiation is incident; a scintillator part for converting the radiation incident from the collimator part into a light ray; a first optical sensor for converting the light ray incident from one end of the scintillator part into a first optical signal; a second optical sensor for converting the light ray incident from the other end of the scintillator part into a second optical signal; and a location information acquisition part for acquiring information on the location where the light ray is generated in the scintillator part, by using the second optical signal and the second optical signal.

The present invention relates to an apparatus for determining the location of a radiation source. The apparatus for determining the location of a radiation source according to the present invention comprises: a collimator part for selectively passing radiation therethrough according to the direction in which the radiation is incident; a scintillator part for converting the radiation incident from the collimator part into a light ray; a first optical sensor for converting the light ray incident from one end of the scintillator part into a first optical signal; a second optical sensor for converting the light ray incident from the other end of the scintillator part into a second optical signal; and a location information acquisition part for acquiring information on the location where the light ray is generated in the scintillator part, by using the second optical signal and the second optical signal.

A detection apparatus for detecting high energy radiation, preferably for detecting gamma radiation, coming from a source of high energy radiation in a detection volume, e.g. from one or more particles emitting high energy radiation. The apparatus comprises at least one detection surface configured to convert incident high energy radiation into a detection signal, and a collimator system comprising at least three collimator slits. Each collimator slit is arranged to project high energy radiation coming from a respective slit field of view of said detection volume onto said detection surface. At least two of said collimator slits extend in non-parallel directions and the respective slit fields of view of said at least two non-parallel collimator slits and the slit field of view of any other of said at least three collimator slits overlap and define a common detection volume of the detection apparatus.

A detection apparatus for detecting high energy radiation, preferably for detecting gamma radiation, coming from a source of high energy radiation in a detection volume, e.g. from one or more particles emitting high energy radiation. The apparatus comprises at least one detection surface configured to convert incident high energy radiation into a detection signal, and a collimator system comprising at least three collimator slits. Each collimator slit is arranged to project high energy radiation coming from a respective slit field of view of said detection volume onto said detection surface. At least two of said collimator slits extend in non-parallel directions and the respective slit fields of view of said at least two non-parallel collimator slits and the slit field of view of any other of said at least three collimator slits overlap and define a common detection volume of the detection apparatus.

A process for detecting oil or lubricant contamination in a manufactured product, the process comprising adding a fluorescent taggant to oils or lubricants contained in processing machinery for said product, conveying said product past an infrared detection apparatus, irradiating said product with infrared radiation from said detection apparatus as it passes the detection apparatus, and detecting infrared radiation emitted from said irradiated product.

A water tank apparatus for use with a radiotherapy system, comprising a base, side walls, end walls, and a top wall, together defining a tank structure, wherein an aperture is defined in the top wall near one end wall, and an upstanding rim surrounding the aperture; and a sensor mounting body fixed within the tank structure, and having formations by which a radiation sensor can be located in a fixed position within the tank structure so as to detect radiation at a point equidistant from the side wall and top wall and base.

The method and device to ensure a safety of people's life and health is based on measurements of spontaneous electromagnetic radiation caused by a deformation from a structure or device, a nucleation and growth of plant cells and living organisms; calculating an energy stored in a portion of the structure or cells based on a measured intensity; performing a comparison of the energy stored with a critical value for the structure and pathological changes in the cells; and indicate a potential failure of the structure or a level of pathological changes based on the performed comparison.