Abstract: A radiation treatment device comprises a radiation source layer comprising a radiation source and a controller. The radiation source is configured to emit radiation with a wavelength in the range 822 nm to 1322 nm. In a preferred embodiment, the device configured to emit radiation with a wavelength of 1067 to 1077 nm.

Abstract: The present invention generally relates to a method and apparatus for performing an operation in a tubular. In one aspect, a method comprises positioning an apparatus in the tubular, the apparatus having a tractor portion and an auxiliary module. The method further includes operating the tractor portion to move the apparatus through the tubular and operating the auxiliary module to perform the operation in the tubular. In another aspect, an apparatus for use in a tubular is provided. The apparatus comprises a tractor having a drive member for moving the apparatus in a desired direction, a turbine member adapted to be driven by moving fluid and a conversion member for converting movement of the turbine member to power the drive member. The apparatus further includes an auxiliary module for use in performing an operation in the tubular.

Abstract: A tractor comprises a tractor module (10) coupled at opposite ends to a cleaning or inspection module (11) and a power generation module (12), the three modules being arranged in line within a pipeline (14) such that traction elements (15) on the tractor module (10) engage the wall of the pipeline (14). In operation within a pipeline along which fluid is flowing in the direction (16), drive is imparted to the power generation module (12) by the fluid flow, and the tractor module (10) is driven in the direction (17) by the power generation module (12) by way of a drive shaft (21) and appropriate step-down gearing (not shown). A speed governor is used to control the rotational speed of the drive shaft (21) such that the tractor speed is not directly related to the speed of the fluid flow, and is preferably substantially independent of the speed of the fluid flow.

Abstract: The present invention generally relates to a method and apparatus for performing an operation in a tubular. In one aspect, a method comprises positioning an apparatus in the tubular, the apparatus having a tractor portion and an auxiliary module. The method further includes operating the tractor portion to move the apparatus through the tubular and operating the auxiliary module to perform the operation in the tubular. In another aspect, an apparatus for use in a tubular is provided. The apparatus comprises a tractor having a drive member for moving the apparatus in a desired direction, a turbine member adapted to be driven by moving fluid and a conversion member for converting movement of the turbine member to power the drive member. The apparatus further includes an auxiliary module for use in performing an operation in the tubular.