Abstract: A method of determining a design of a transmission waveguide, the method comprising: providing a system comprising a transmission waveguide connected at a first end thereof to an RF source; generating an electromagnetic field in the system by application of RF energy of a harmonic frequency of the RF source to the transmission waveguide; determining whether a reference location in the RF source meets a requirement relating directly or indirectly to an electromagnetic field in the RF source; and if the requirement is met, outputting the current design of the transmission waveguide as its design.

Abstract: A particle accelerator comprises a waveguide configured to accelerate a beam of electrons along an acceleration path. A diversion channel is configured to convey a beam of electrons along a diversion path. A first magnet arrangement is configured to, at a first location, direct electrons from the acceleration path to the diversion path. A second magnet arrangement is configured to, at a second location, direct electrons from the diversion path to the acceleration path.

Abstract: A particle accelerator comprising a waveguide comprising a series of acceleration cells. The series of acceleration cells comprise an input acceleration cell configured to accelerate a beam of electrons along the central axis of the cells. A source of electrons is configured to input a beam of electrons into the input acceleration cell and a magnet arrangement is configured to prevent electrons that have deviated from the beam of electrons from hitting the source of electrons.

Abstract: Apparatus for measuring radiation beam energy output from a radiation beam source, comprising a first beam energy sensor at a first distance from the radiation beam source along the radiation beam axis; a second beam energy sensor located at a second distance from the radiation beam source along the radiation beam axis; and an energy absorbing layer, for example a layer that removes a part of the low energy content of the beam or a layer that absorbs at least 1% of the beam energy, located between the first and second sensors, and positioned such that radiation passing through the first sensor also passes through the energy absorbing layer before entering the second sensor.

Abstract: Apparatus for measuring radiation beam energy output from a radiation beam source, comprising a first beam energy sensor at a first distance from the radiation beam source along the radiation beam axis; a second beam energy sensor located at a second distance from the radiation beam source along the radiation beam axis; and an energy absorbing layer, for example a layer that removes a part of the low energy content of the beam or a layer that absorbs at least 1% of the beam energy, located between the first and second sensors, and positioned such that radiation passing through the first sensor also passes through the energy absorbing layer before entering the second sensor.

Abstract: Standby power supplies for patient tables need frequent replacement of the lead-acid batteries on which they depend. We propose to feed the emergency power direct to the drive motors, subsequent to the control circuitry. This will reduce the load on the standby power system, allowing greater design freedom to select longer-lasting or less expensive energy stores.

Abstract: Standby power supplies for patient tables need frequent replacement of the lead-acid batteries on which they depend. We propose to feed the emergency power direct to the drive motors, subsequent to the control circuitry. This will reduce the load on the standby power system, allowing greater design freedom to select longer-lasting or less expensive energy stores.

Abstract: There is provided a digital repeater module and method for relaying digital data. The digital repeater module comprises a data reception unit configured to receive digital data from several broadcast devices concurrently, a data transmission unit configured to transmit digital data using a multiple transmission protocols concurrently, and a routing application. The routing application can receive digital data through the data reception unit, identify available data paths for relaying the digital data to desired destinations, and determine transmission metrics for each of the available data paths for relaying the digital data to the desired destinations. The routing application can also select data paths for transmission based on the determined transmission metrics, and transmit the digital data using the selected data paths through the data transmission unit. There is also provided a method for resolving assignment of limited broadcast frequencies using the digital repeater module.

Abstract: There is provided a digital repeater module and method for relaying digital data. The digital repeater module comprises a data reception unit configured to receive digital data from several broadcast devices concurrently, a data transmission unit configured to transmit digital data using a multiple transmission protocols concurrently, and a routing application. The routing application can receive digital data through the data reception unit, identify available data paths for relaying the digital data to desired destinations, and determine transmission metrics for each of the available data paths for relaying the digital data to the desired destinations. The routing application can also select data paths for transmission based on the determined transmission metrics, and transmit the digital data using the selected data paths through the data transmission unit. There is also provided a method for resolving assignment of limited broadcast frequencies using the digital repeater module.

Abstract: There is provided a digital repeater module and method for relaying digital data. The digital repeater module comprises a data reception unit configured to receive digital data from several broadcast devices concurrently, a data transmission unit configured to transmit digital data using a multiple transmission protocols concurrently, and a routing application. The routing application can receive digital data through the data reception unit, identify available data paths for relaying the digital data to desired destinations, and determine transmission metrics for each of the available data paths for relaying the digital data to the desired destinations. The routing application can also select data paths for transmission based on the determined transmission metrics, and transmit the digital data using the selected data paths through the data transmission unit. There is also provided a method for resolving assignment of limited broadcast frequencies using the digital repeater module.

Abstract: Circuits systems and methods for frequency translation and signal distribution includes a downconverter circuit having first and second inputs coupled to receive respective first and second input signals, and an output for providing a downconverted output signal. The downconverter circuit includes a mixer circuit, a first switch, and a second switch. The mixer includes a first input coupled to a reference source, a second input, and an output coupled to the downconverter circuit output. The first switch includes a first port coupled to the downconverter circuit first input, and a second port switchably coupled to the mixer circuit second input. The second switch includes a first port coupled to the downconverter circuit second input, and a second port switchably coupled to the mixer circuit second input.

Abstract: A multi-stage signal combining network includes two or more first stage combiner circuits, two or more filters, and at least one second stage signal combiner circuit. Each of the first stage combiner circuits has two or more input ports coupled to receive a respective two or more signals, and a first combiner output port. Each of the two or more filters includes an input coupled to one first stage combiner output port and a filter output port. The at least one second stage combiner circuit includes two or more input ports, each coupled to one filter output port, and a second stage combiner output port.

Abstract: An integrated circuit (IC) structure and method of distributing multiple broadband signal inputs to multiple integrated circuits, where each IC receives at least one original signal and outputs a replica of the original signals to other ICs and receives at least one replica signal output by another IC.

Abstract: There is provided a digital repeater module and method for relaying digital data. The digital repeater module comprises a data reception unit configured to receive digital data from several broadcast devices concurrently, a data transmission unit configured to transmit digital data using a multiple transmission protocols concurrently, and a routing application. The routing application can receive digital data through the data reception unit, identify available data paths for relaying the digital data to desired destinations, and determine transmission metrics for each of the available data paths for relaying the digital data to the desired destinations. The routing application can also select data paths for transmission based on the determined transmission metrics, and transmit the digital data using the selected data paths through the data transmission unit. There is also provided a method for resolving assignment of limited broadcast frequencies using the digital repeater module.

Abstract: Circuits systems and methods for frequency translation and signal distribution includes a downconverter circuit having first and second inputs coupled to receive respective first and second input signals, and an output for providing a downconverted output signal. The downconverter circuit includes a mixer circuit, a first switch, and a second switch. The mixer includes a first input coupled to a reference source, a second input, and an output coupled to the downconverter circuit output. The first switch includes a first port coupled to the downconverter circuit first input, and a second port switchably coupled to the mixer circuit second input. The second switch includes a first port coupled to the downconverter circuit second input, and a second port switchably coupled to the mixer circuit second input.

Abstract: An integrated circuit (IC) structure and method of distributing multiple broadband signal inputs to multiple integrated circuits, where each IC receives at least one original signal and outputs a replica of the original signals to other ICs and receives at least one replica signal output by another IC.