Abstract: An apparatus for detecting radiation for obtaining density information of a structure, the apparatus including: at least one detector (10), the detector (10) including: a scintillator (12) including a scintillating material for emitting light in response to incident radiation (14), and a photodetector (16) for receiving light emitted by the scintillating material (12) and outputting an electrical signal in response to light received from the scintillating material (12), wherein the photodetector (16) includes at least one silicon photomultiplier (16a). The invention reduces the volume of the apparatus and therefore provides particular advantages for use in scanning pipelines and other structures located deep subsea.

Abstract: An apparatus for transferring data from a first part of a measuring apparatus to a second part includes a signal transmitting part mounted to the second part and having first antennae for receiving first electrical signals representing data from the second part and emitting electromagnetic radiation corresponding to the first electrical signals, and a signal receiving part mounted to the first part but separated from and rotating relative to the signal transmitting part. The signal receiving part includes a second antenna for receiving electromagnetic radiation and generating second electrical signals corresponding to the first electrical signals.

Abstract: An apparatus for detecting radiation for obtaining density information of a structure, the apparatus including: at least one detector (10), the detector (10) including: a scintillator (12) including a scintillating material for emitting light in response to incident radiation (14), and a photodetector (16) for receiving light emitted by the scintillating material (12) and outputting an electrical signal in response to light received from the scintillating material (12), wherein the photodetector (16) includes at least one silicon photomultiplier (16a). The invention reduces the volume of the apparatus and therefore provides particular advantages for use in scanning pipelines and other structures located deep subsea.

Abstract: An apparatus for transferring data from a first part of a measuring apparatus to a second part includes a signal transmitting part mounted to the second part and having first antennae for receiving first electrical signals representing data from the second part and emitting electromagnetic radiation corresponding to the first electrical signals, and a signal receiving part mounted to the first part but separated from and rotating relative to the signal transmitting part. The signal receiving part includes a second antenna for receiving electromagnetic radiation and generating second electrical signals corresponding to the first electrical signals.