Radiation imaging system
AssigneeCanon Kabushiki Kaisha
InventorsKatsuhiro Nishijima, Daisuke Yamada, Kazuma Obara
Life of this patent
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Abstract
A radiation imaging system includes a radiation imaging apparatus configured to transmit, based on electric charge generated in response to irradiation with radiation and a target value, a signal related to control of irradiation with radiation to an external apparatus; and a control apparatus configured to generate a target dose index value that is based on the target value and a dose index value that is based on information regarding electric charge, and determine whether the dose index value is within an allowable range of the target dose index value.
Claims22
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value, and
- a determination unit configured to determine whether the dose index value is within the allowable range.
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value, and
- a determination unit configured to determine whether the dose index value is within the allowable range, wherein
- the conversion unit includes a plurality of regions,
- the signal transmitted by the transmission unit is a signal for providing an instruction to stop irradiation with radiation, the signal being transmitted based on electric charge of each of the plurality of regions, the target value, and a stop condition,
- the dose index generating unit is configured to generate a dose index value for each of the plurality of regions of the conversion unit, and
- the determination unit is configured to, in a case where the stop condition is AND, determine whether a smallest dose index value among the dose index values of the plurality of regions is within the allowable range.
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value, and
- a determination unit configured to determine whether the dose index value is within the allowable range, wherein
- the conversion unit includes a plurality of regions,
- the signal transmitted by the transmission unit is a signal for providing an instruction to stop irradiation with radiation, the signal being transmitted based on electric charge of each of the plurality of regions, the target value, and a stop condition,
- the dose index generating unit is configured to generate a dose index value for each of the plurality of regions of the conversion unit, and
- the determination unit is configured to, in a case where the stop condition is OR, determine whether a largest dose index value among the dose index values of the plurality of regions is within the allowable range.
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value, and
- a determination unit configured to determine whether the dose index value is within the allowable range, wherein
- the conversion unit includes a plurality of regions,
- the signal transmitted by the transmission unit is a signal for providing an instruction to stop irradiation with radiation, the signal being transmitted based on electric charge of each of the plurality of regions, the target value, and a stop condition,
- the dose index generating unit is configured to generate a dose index value for each of the plurality of regions of the conversion unit, and
- the determination unit is configured to, in a case where the stop condition is AVG, determine whether an average value of the dose index values of the plurality of regions is within the allowable range.
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value,
- a determination unit configured to determine whether the dose index value is within the allowable range, and
- a display unit configured to display a determination result, wherein
- the conversion unit includes a plurality of regions,
- the signal transmitted by the transmission unit is a signal for providing an instruction to stop irradiation with radiation, the signal being transmitted based on electric charge of each of the plurality of regions, the target value, and a stop condition,
- the dose index generating unit is configured to generate a dose index value for each of the plurality of regions of the conversion unit,
- the determination unit is configured to, based on the stop condition, select at least one region among the plurality of regions and make a determination of whether the dose index value of the selected region is within the allowable range, and
- the display unit is configured to, in a case where a determination result of the determination indicates that the dose index value of the selected region is out of the allowable range, display the determination result such that a position of the selected region is recognizable.
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value,
- a determination unit configured to determine whether the dose index value is within the allowable range, and
- a reporting unit configured to report a determination result of the determination unit or whether irradiation with radiation is ended before automatic exposure control operates.
A radiation imaging system comprising:
- a radiation imaging apparatus including
- a conversion unit configured to generate electric charge in response to irradiation with radiation, and
- a transmission unit configured to transmit, based on the electric charge generated by the conversion unit and a target value, a signal related to control of irradiation with radiation to an external apparatus;
- and
- a control apparatus including
- a dose index generating unit configured to generate a target dose index value that is based on the target value, and a dose index value that is based on information regarding electric charge, the information being acquired from the radiation imaging apparatus,
- an allowable range setting unit configured to set an allowable range of the target dose index value,
- a determination unit configured to determine whether the dose index value is within the allowable range, and
- a display unit configured to display a determination result, wherein
- the conversion unit includes a plurality of regions,
- the signal transmitted by the transmission unit is a signal for providing an instruction to stop irradiation with radiation, the signal being transmitted based on electric charge of each of the plurality of regions, the target value, and a stop condition,
- the dose index generating unit is configured to generate a dose index value for each of the plurality of regions of the conversion unit,
- the determination unit is configured to, based on the stop condition, select at least one region among the plurality of regions and make a determination of whether the dose index value of the selected region is within the allowable range, and
- the display unit is configured to, in a case where a determination result of the determination indicates that the dose index value of the selected region is out of the allowable range, display the determination result such that a position of the selected region is recognizable or display whether irradiation with radiation is ended before automatic exposure control operates.
Dependencies are inferred from the claim text.