Abstract: Various embodiments are described herein of radiation systems and methods for monitoring radiation dose are provided monitoring an amount of radiation in a radiation beam generated by a radiation source for a radiation treatment session, where a radiation sensor is used to provide an actual radiation measurement and an Artificial Neural Network (ANN) engine is used to generate a predicted radiation measurement based on a plurality of feature values for features including radiation field segments from the radiation treatment plan data for the radiation treatment session. The difference between the actual radiation measurement and the predicted radiation measurement is used to determine whether the radiation system is operating in a predetermined safe operation range.

Abstract: A Radio-Therapy (RT) system includes an integrated radiation source and a Magnetic Resonance Imaging (MRI) system that implements a method for providing a variable imaging Field Of View (FOV). The FOV can be tailored for various RT-specific applications such as, but not limited to, patient setup verification and real-time tumor tracking, for example, as well as for various imaging volumes of interest.

Abstract: Various embodiments are described herein for a system and a method for identifying a region of interest in tissue using mass spectrometry. An agent administration component can be provided to administer an exogenous agent to the tissue. A sampling unit can also be provided to acquire a sample from the tissue. The sample can then be provided to a high sensitivity analysis platform, such as a mass analyzer, to analyze the sample and determine a distribution of the exogenous agent or a by-product of the exogenous agent within the tissue based on the analysis. The analysis platform can then identify the region of interest based on the distribution of the exogenous agent or the distribution of the by-product.

Abstract: Various embodiments are described herein for a system and a method for identifying a region of interest in tissue using mass spectrometry. An agent administration component can be provided to administer an exogenous agent to the tissue. A sampling unit can also be provided to acquire a sample from the tissue. The sample can then be provided to a high sensitivity analysis platform, such as a mass analyzer, to analyze the sample and determine a distribution of the exogenous agent or a by-product of the exogenous agent within the tissue based on the analysis. The analysis platform can then identify the region of interest based on the distribution of the exogenous agent or the distribution of the by-product.

Abstract: Various embodiments are described herein for a Radio-Therapy (RT) system and an associated method and in particular to an integrated radiation source with an MRI system featuring a variable imaging Field Of View (FOV). The FOV can be tailored for various RT-specific applications such as, but not limited to, patient setup verification and real-time tumor tracking, for example, as well as for various imaging volumes of interest.

Abstract: A system and method for commissioning of a beam model for a three dimensional radiation therapy treatment planning system is described. The system includes an intensity modulated radiotherapy (IMRT) unit for generating a two dimensional intensity modulated beam pattern, a two dimensional diode array for detecting a two dimensional dose map for the beam pattern, and a processor configured to execute instructions for iteratively adjusting one or more parameters for the beam model, in order to increase agreement between the detected dose map and a calculated dose map calculated using the beam model.

Abstract: Various embodiments are described herein for nanostructure field emission cathode structures and methods of making these structures. These structures generally comprise an electrode field emitter comprising a resistive layer having a first surface, a connection pad having a first surface disposed adjacent to the first surface of the resistive layer, and a nanostructure element for emitting electrons in use, the nanostructure element being disposed adjacent to a second surface of the connection pad that is opposite the first surface of the connection pad. Some embodiments also include a coaxial gate electrode that is disposed about the nanostructure element.

Abstract: Various embodiments are described herein for nanostructure field emission cathode structures and methods of making these structures. These structures generally comprise an electrode field emitter comprising a resistive layer having a first surface, a connection pad having a first surface disposed adjacent to the first surface of the resistive layer, and a nanostructure element for emitting electrons in use, the nanostructure element being disposed adjacent to a second surface of the connection pad that is opposite the first surface of the connection pad. Some embodiments also include a coaxial gate electrode that is disposed about the nanostructure element.

Abstract: A system and method for commissioning of a beam model for a three dimensional radiation therapy treatment planning system is described. The system includes an intensity modulated radiotherapy (IMRT) unit for generating a two dimensional intensity modulated beam pattern, a two dimensional diode array for detecting a two dimensional dose map for the beam pattern, and a processor configured to execute instructions for iteratively adjusting one or more parameters for the beam model, in order to increase agreement between the detected dose map and a calculated dose map calculated using the beam model.

Abstract: A radiotherapeutic apparatus employs a collimator (52) set below a radiation source (50) and is adapted to move along an arc (54) substantially centered on the radiation source (50). As it sweeps the arc, the collimator (52) is adjusted so as to define the appropriate shape of radiation beam. A continuous sweep over the patient avoids edge artefacts and localized accumulation of leakage.

Abstract: A radiotherapeutic apparatus employs a collimator (52) set below a radiation source (50) and is adapted to move along an arc (54) substantially centred on the radiation source (50). As it sweeps the arc, the collimator (52) is adjusted so as to define the appropriate shape of radiation beam. A continuous sweep over the patient avoids edge artefacts and localised accumulation of leakage.