Abstract: A method and apparatus for downhole generation of non-radioactive, ionized radiation arranged so as to be able to generate reverberation, particularly X-ray and/or gamma radiation, from the surroundings of a borehole, wherein the method includes the steps of: exciting laser light in a multistage laser light booster by means of a pump-type laser light source so as to form a pulsed laser light, the incoming light energy being concentrated in restricted laser light pulses representing a higher amount of light energy than that of a continuous flux of laser light; forming a concentration of dissociated electrons in a vacuum chamber; focusing the pulsed laser light at a point in the concentration of dissociated electrons so as to form a field (wakefield) of pulsed electrons which, upon generation of Bremsstrahlung, emit ionized radiation to the surroundings, thereby forming a high-energy reverberation in the gamma and/or X-ray frequency range from the surroundings.

Abstract: An apparatus for recording and displaying images of and identifying material types in a target object in a fluid carrying conduit includes a downhole unit. The downhole unit includes a controllable light source, the controllable light source structured to emit high energy photons. The downhole unit further includes a sensor unit structured to detect the high energy photons that are backscattered from the target object and to generate signals in response to the detected high energy photons. The apparatus also includes a control and display unit that includes a signal transmitter and a viewing screen structured to display at least one two-dimensional image that is generated using the signals from the sensor unit.

Abstract: An apparatus for recording and displaying images of and identifying material types in a target object in a fluid carrying conduit includes a downhole unit. The downhole unit includes a controllable light source, the controllable light source structured to emit high energy photons. The downhole unit further includes a sensor unit structured to detect the high energy photons that are backscattered from the target object and to generate signals in response to the detected high energy photons. The apparatus also includes a control and display unit that includes a signal transmitter and a viewing screen structured to display at least one two-dimensional image that is generated using the signals from the sensor unit.

Abstract: An apparatus for recording and displaying images of and identifying material types in a target object in a fluid carrying conduit includes a downhole unit. The downhole unit includes a controllable light source, the controllable light source structured to emit high energy photons. The downhole unit further includes a sensor unit structured to detect the high energy photons that are backscattered from the target object and to generate signals in response to the detected high energy photons. The apparatus also includes a control and display unit that includes a signal transmitter and a viewing screen structured to display at least one two-dimensional image that is generated using the signals from the sensor unit.