Abstract: A system includes a downhole tool having a first load of a plurality of loads that receive power from a system power supply. The downhole tool includes a second load of the plurality of loads configured to receive power from the system power supply. The downhole tool includes control electronics that control a temporal distribution of power delivered from the system power supply to at least the first and second load such that timing of power drawn by the first load is based on timing of power drawn by the second load.

Abstract: A wireline-assisted coiled-tubing portion is arranged to be lowered into a well in a ground. The wireline-assisted coiled-tubing portion comprises a coiled-tubing portion, the coiled-tubing portion in its entirety being arranged to be lowered into the well; and a wire which is attached to an, in the position of application, upper portion of the coiled-tubing portion, the wire extending from the coiled-tubing portion to the opening of the well at a surface, and the wire being arranged to transmit electrical energy and electrical signals.

Abstract: A downhole fluid properties optical analysis probe (1) to analyze at least one property of a multiphase flow mixture (100) flowing in a hydrocarbon well (51) has an elongated cylindrical body shape and comprises an optical tip (5) at one end of the elongated cylindrical body arranged to be in contact with the multiphase flow mixture (100), and an optoelectronics module (11) at another end of the elongated cylindrical body arranged to be separated from the multiphase flow mixture (100) and coupled to the optical tip (5) by an optical fiber bundle.

Abstract: Apparatus and method for downhole formation testing using a spectrometer includes a carrier conveyable into a well borehole that traverses a subterranean formation of interest, a plurality of semiconductor light sources disposed on the carrier, a fluid sample cell that receives light emitted from the plurality of semiconductor light sources, and at least one photodetector that detects light emitted from the plurality of semiconductor light sources and after the light interacts with a fluid in the fluid sample cell.

Abstract: A sensor for measuring at least one of temperature and pressure in a borehole, the sensor including a mixing medium disposed in a housing adapted for insertion into the borehole, the mixing medium exposed to at least one of the temperature and the pressure; wherein the mixing medium is used for four wave mixing of light to provide a signal that indicates at least one of the temperature and the pressure.

Abstract: A laser beam reflected by wax crystals is used in determining the wax crystallization temperature of a hot dewaxing solvent upstream of solvent chillers. This is automatically achieved by an on-line method from a remote control point, in which a slipstream of solvent is passed through an attached solvent loop into a sample chamber in the loop, without being exposed to ambient conditions. As the sample is cooled, the beam reflections are detected and indicate the wax to crystallization temperature. Corrective measures can then be taken to prevent fouling of the chillers, if need be.

Abstract: Methods are provided for identifying root causes of particle issues and for developing particle-robust process recipes in plasma deposition processes. The presence of in situ particles within the substrate processing system is detected over a period of time that spans multiple distinct processing steps in the recipe. The time dependence of in situ particle levels is determined from these results. Then, the processing steps are correlated with the time dependence to identify relative particle levels with the processing steps. This information provides a direct indication of which steps result in the production of particle contaminants so that those steps may be targeted for modification in the development of particle recipes.

Abstract: The radiotherapy treatment planning system is for calculating the radiation dose to be absorbed by an object to be irradiated, prior to radiotherapy. The distribution of contribution output unit outputs the distribution of contribution showing the contribution rates of scattered beam or electron beam to an observational point in each point of the object to be irradiated. The arithmetic unit calculates the absorbed dose of the observational point due to the scattered beam or the absorbed dose due to the electron beam, by summing up each contribution rate multiplied with the electron density at the point corresponding thereto.

Abstract: An optical communication system for drill hole logging comprises an armored cable containing one or more glass clad optical fibers inside a tubular moisture barrier, a neodymium laser in the cable reel radiates infrared light into one of the fibers, a modulator in the downhole cable-head connector shell modulates light and returns it to the surface, and a semiconductor detector in the reel demodulates the data signal from the returning light.

Abstract: A pulsed neutron generator in a well logging instrument is pulsed at a clock frequency of 20 KHz. Inelastic scatter gamma rays are detected during a first time interval coinciding with the neutron source being on and capture gamma rays are measured during a second interval subsequent to the end of each neutron burst. Only a single detected pulse, assuming detection occurs, is transmitted during each of the two detection intervals. Sync pulses are generated in the well logging instrument scaled down to a frequency of 200 Hz for transmission to the earth's surface. At the earth's surface, the scaled-down sync pulses are applied to a phase locked loop system for regenerating the sync pulses to the same frequency as that of the clock frequency used to pulse the neutron source and to open the detection gates in the borehole instrument.

Abstract: A well logging system provides at least one output corresponding to a condition sensed in a borehole traversing an earth formation. The well logging system includes a logging instrument which includes a sensor sensing the condition and providing electrical pulses corresponding in number and peak amplitude to the sensed condition. A converting circuit connected to the sensors converts each electrical pulse into a light pulse whose intensity corresponds to the peak amplitude. A well logging cable connected to the logging instrument includes a light conductor. The logging instrument further includes a circuit for applying the light pulses to one end of the light conductor. Surface apparatus includes a converter connected to the other end of the light conductor for converting each light pulse into a corresponding electrical pulse having a peak amplitude representative of the intensity of the light pulse.

Abstract: A pulsed neutron generator in a well logging instrument is pulsed at a clock frequency of 20 KHz. Inelastic scatter gamma rays are detected during a first time interval coinciding with the neutron source being on and capture gamma rays are measured during a second interval subsequent to the end of each neutron burst. Only a single detected pulse, assuming detection occurs, is transmitted during each of the two detection intervals. Sync pulses are generated in the well logging instrument scaled down to a frequency of 200 Hz for transmission to the earth's surface. At the earth's surface, the scaled-down sync pulses are applied to a phase-locked loop system for regenerating the sync pulses to the same frequency as that of the clock frequency used to pulse the neutron source and to open the detection gates in the borehole instrument.

Abstract: A pulsed neutron generator in a well logging instrument is pulsed at a clock frequency of 20 KHz. Inelastic scatter gamma rays are detected during a first time interval coinciding with the neutron source being on and capture gamma rays are measured during a second interval subsequent to the end of each neutron burst. Only a single detected pulse, assuming detection occurs, is transmitted during each of the two detection intervals. Sync pulses are generated in the well logging instrument scaled down to a frequency of 200 Hz for transmission to the earth's surface. At the earth's surface, the scaled-down sync pulses are applied to a phase-locked loop system for regenerating the sync pulses to the same frequency as that of the clock frequency used to pulse the neutron source and to open the detection gates in the borehole instrument.

Abstract: A well logging system and method in which a transmitter in a borehole has at least two radiation detectors sensing either the same condition or two different conditions relating to the earth's formation traversed by the borehole and providing pulse signals having reference pulses and data pulses corresponding in number and peak amplitude to the sensed condition. Each pulse signal is sampled at different times by a sampling circuit which provides pulses of opposite polarity whose amplitudes correspond to the amplitudes of the first pulses occurring during sampling periods. The pulses from the sampling circuit are conducted to surface electronics by a single conductive path such as the inner conductor and the shield of an armored coaxial cable. The surface electronics include a pulse separation circuit which separates the pulses polarity. Processing circuits process the separated pulses to provide records of at least two spectra.

Abstract: An X-ray inspection system includes a circuit that responds to a high level of opacity for more than a predetermined time interval by providing an alarm signal to alert the inspector of the possibility of concealed contraband. The circuitry also provides a pulse when exceptional opacity is detected for combination with the vertical deflection signal to translate the display of exceptionally opaque objects to a different portion of the viewing screen to facilitate identification of potential contraband without opening the baggage or parcel being inspected.

Abstract: A conventional type radiation detector in cooperation with a photomultiplier tube provides data pulses of one polarity, corresponding in peak amplitude and number to detected radiation in a borehole traversing an earth formation. Each data pulse is effectively converted to two pulses of different polarities, with one pulse starting when the other is completed and transmitted over a common well logging cable. The creation of a second pulse of an opposite polarity cancels out the low frequency component of the pulse so that they arrive at the surface as a pulse of a single polarity having a very short tail and a fast rise time. This permits more pulses to be transmitted within a given time period than heretofore existed. Surface electronics process the transmitted pulses to provide a record of the sensed condition in the borehole.