Abstract: A system provides a pulsed radiation beam along an axis; a scintillator blanket or a scintillator mask conformable to a surface of a target area of a patient; and a camera to image the scintillator from a distance. The system includes an image processor configured to use images of the scintillator to measure radiation dosage provided by each pulse of the beam, totalize radiation dosage provided by pulses of the beam, and provide signals to a controller. A method of monitoring radiation treatment includes placing a scintillator on a target area; providing a radiation beam through the scintillator into the target area; using a camera to image from a distance; and applying dose calibration factors, angular emission correction factors, and a measured 3D surface of the scintillator, to generate maps of dose and dose rate in a geometric plane perpendicular to an axis of the radiation beam.

Abstract: A system for delivering ultra-high dose rate irradiation to a target area of a patient, includes a pulsed charged-particle source along a beam axis; a collimator for shaping the beam of radiation; one or more cameras for imaging the target area of the patient; and a dosimetry controller for providing control signals to the charged-particle source one or more dosimeters positioned between an output of the charged-particle source and the collimator in beam fringes for measuring a radiation dosage provided by each pulse; and a beam scanning coil positioned between the collimator and the patient for directing the shaped beam. The dosimetry controller receives feedback from the one or more dosimeters and provides control signals to the particle source and the beam scanning coil that modulate final pulses in the series of pulses in real-time.

Abstract: A system for delivering ultra-high dose rate irradiation to a target area of a patient, includes a pulsed charged-particle source along a beam axis; a collimator for shaping the beam of radiation; one or more cameras for imaging the target area of the patient; and a dosimetry controller for providing control signals to the charged-particle source one or more dosimeters positioned between an output of the charged-particle source and the collimator in beam fringes for measuring a radiation dosage provided by each pulse; and a beam scanning coil positioned between the collimator and the patient for directing the shaped beam. The dosimetry controller receives feedback from the one or more dosimeters and provides control signals to the particle source and the beam scanning coil that modulate final pulses in the series of pulses in real-time.

Abstract: A Cherenkov-based or thin-sheet scintillator-based imaging system uses a radio-optical triggering unit (RTU) that detects scattered radiation in a fast-response scintillator to detect pulses of radiation to permit capture of Cherenkov-light or scintillator-light images during pulses of radiation and background images at times when pulses of radiation are not present without need for electrical interface to the accelerator that provides the pulses of radiation. The Cherenkov images are corrected by background subtraction and used for purposes including optimization of treatment, commissioning, routine quality auditing, R&D, and manufacture. The radio-optical triggering unit employs high-speed, highly sensitive radio-optical sensing to generate a digital timing signal which is synchronous with the treatment beam for use in triggering Cherenkov light or scintillator light imaging.

Abstract: A Cherenkov-based or thin-sheet scintillator-based imaging system uses a radio-optical triggering unit (RTU) that detects scattered radiation in a fast-response scintillator to detect pulses of radiation to permit capture of Cherenkov-light or scintillator-light images during pulses of radiation and background images at times when pulses of radiation are not present without need for electrical interface to the accelerator that provides the pulses of radiation. The Cherenkov images are corrected by background subtraction and used for purposes including optimization of treatment, commissioning, routine quality auditing, R&D, and manufacture. The radio-optical triggering unit employs high-speed, highly sensitive radio-optical sensing to generate a digital timing signal which is synchronous with the treatment beam for use in triggering Cherenkov light or scintillator light imaging.

Abstract: A system for dosimetry includes a radiation source that provides a pulsed radiation beam to a treatment zone, and a thin sheet of scintillator disposed between the radiation source and skin of a subject in the treatment zone. A gated camera images the scintillator integrating light from the scintillator during multiple pulses of the radiation beam while excluding light received between pulses of the pulsed radiation beam; and an image capture and processing machine that receives images from the gated camera and performs additional corrections to provide a map of dose received by the subject.

Abstract: In a preferred embodiment, an environmentally insensitive electric detonator system for demolition, including: an object to be demolished; a main explosive charge in proximity to the object to be demolished; electrically activated detonator apparatus including a relatively insensitive initiating charge in proximity to the main explosive charge; and circuitry having input apparatus to receive an input firing pulse and having output apparatus to provide, through arbitrarily long wires, a high voltage in response thereto across the electrically activated detonator apparatus to cause ignition of the main explosive charge.