Abstract: An X-ray imaging system can include an X-ray tube, an X-ray generator, a precharging module and a triaxial cable. The X-ray tube can be configured to generate an X-ray emission and include an anode, a cathode and a filament. The X-ray generator can be coupled with the X-ray tube and include a high voltage module and a low voltage module. The high voltage module can be being configured to supply a dosing voltage across the X-ray tube and the low voltage module can be configured to supply a dosing current to the filament. The precharging module can be configured to supply a precharge voltage. The triaxial cable can electrically connect the X-ray generator to the X-ray tube. The outer shield conductor of the triaxial cable can carry a ground voltage, the inner shield conductor can carry the precharge voltage and the center conductor can carry the dosing voltage.

Abstract: Sensor systems, transdermal analyte monitoring systems (TAMS), and methods of improving analyte detection are described herein. The sensor systems have two working terminals, at least one counter terminal, and optionally one or more reference terminals. The first working terminal measures electrical signals due to an analyte level along with background interferences. The second working terminal measures only background interferences. The transdermal analyte monitoring systems include the sensor system and a computing device. The computing device performs mathematical analysis using an appropriate algorithm on the electrical information provided by the electrodes of the sensor system to obtain an accurate analyte level. Typically, the second electrical signal is subtracted from the first electrical signal to obtain an accurate analyte level in real time.

Abstract: An X-ray imaging system can include an X-ray tube, an X-ray generator, a precharging module and a triaxial cable. The X-ray tube can be configured to generate an X-ray emission and include an anode, a cathode and a filament. The X-ray generator can be coupled with the X-ray tube and include a high voltage module and a low voltage module. The high voltage module can be being configured to supply a dosing voltage across the X-ray tube and the low voltage module can be configured to supply a dosing current to the filament. The precharging module can be configured to supply a precharge voltage. The triaxial cable can electrically connect the X-ray generator to the X-ray tube. The outer shield conductor of the triaxial cable can carry a ground voltage, the inner shield conductor can carry the precharge voltage and the center conductor can carry the dosing voltage.

Abstract: An X-ray imaging system can include an X-ray tube, an X-ray generator, a precharging module and a triaxial cable. The X-ray tube can be configured to generate an X-ray emission and include an anode, a cathode and a filament. The X-ray generator can be coupled with the X-ray tube and include a high voltage module and a low voltage module. The high voltage module can be being configured to supply a dosing voltage across the X-ray tube and the low voltage module can be configured to supply a dosing current to the filament. The precharging module can be configured to supply a precharge voltage. The triaxial cable can electrically connect the X-ray generator to the X-ray tube. The outer shield conductor of the triaxial cable can carry a ground voltage, the inner shield conductor can carry the precharge voltage and the center conductor can carry the dosing voltage.

Abstract: An X-ray imaging system can include an X-ray tube, an X-ray generator, a precharging module and a triaxial cable. The X-ray tube can be configured to generate an X-ray emission and include an anode, a cathode and a filament. The X-ray generator can be coupled with the X-ray tube and include a high voltage module and a low voltage module. The high voltage module can be being configured to supply a dosing voltage across the X-ray tube and the low voltage module can be configured to supply a dosing current to the filament. The precharging module can be configured to supply a precharge voltage. The triaxial cable can electrically connect the X-ray generator to the X-ray tube. The outer shield conductor of the triaxial cable can carry a ground voltage, the inner shield conductor can carry the precharge voltage and the center conductor can carry the dosing voltage.

Abstract: A method for determining when sufficient cells of a biological specimen have been collected by a filter is based on measuring an air flow rate between a filter and a vacuum source. The air flow rate can be measured by a mass air flow sensor. The air flow rate dropping below a threshold, such as a certain percentage of an initial or baseline flow rate, indicates that sufficient cells have been collected to provide sufficient filter coverage.

Abstract: A method for determining when sufficient cells of a biological specimen have been collected by a filter is based on measuring an air flow rate between a filter and a vacuum source. The air flow rate can be measured by a mass air flow sensor. The air flow rate dropping below a threshold, such as a certain percentage of an initial or baseline flow rate, indicates that sufficient cells have been collected to provide sufficient filter coverage.