DYNAMIC CONTROL OF RADIATION EMISSION

摘要

Among other things, one or more techniques and/or systems for selectively inhibiting radiation from being generated by a radiation source are provided. A radiation source comprises an electrically conductive gate situated between a cathode and an anode. When a voltage potential is created between the gate and the cathode, a flow of electrons between the cathode and the anode is mitigated, thus inhibiting radiation from being generated by the radiation source. When the voltage potential is removed or lessened, electrons may more freely flow between the cathode and the anode to generate radiation. In some embodiments, a calibration, such as a dark calibration, may be performed while the gate mitigates the flow of electrons. Moreover, in some embodiments, an accelerating voltage applied to the radiation source may be held substantially constant when radiation is generated as well as when radiation generation is inhibited.

主权项

1. A radiation system, comprising:
a radiation source comprising a cathode and an anode, the radiation source configured to accelerate electrons between the cathode and the anode to generate radiation; and an electrically conductive gate situated between the cathode and the anode, the gate configured to mitigate a flow of electrons between the cathode and the anode when a bias is applied to the gate, such that a gate voltage applied to the gate is different than a cathode voltage applied to the cathode, to inhibit the generation of radiation from the radiation source.