Radiographic apparatus, radiographic system, control methods thereof, and computer-readable storage medium

A radiographic apparatus that performs radiation imaging using radiation emitted from an irradiation control apparatus, comprising:

• a communication unit configured to communicate with the irradiation control apparatus;
• a timer unit configured to provide a time value for a timing of the radiation imaging;
• a measurement unit configured to measure a time difference between the time value of the timer unit and a time value of a timer of the irradiation control apparatus by communication via the communication unit;
• a correction unit configured to correct the timer unit so as to eliminate the time difference, the correction unit capable of executing a plurality of pieces of correction processing having different correction periods;
• and
• a selecting unit configured to select, from the plurality of pieces of correction processing, correction processing to be executed by the correction unit, based on an operating state of the radiographic apparatus.

A control method for a radiographic system in which an irradiation control apparatus incorporating a first timer that provides a time value for an irradiation timing and configured to control irradiation of radiation and a radiographic apparatus incorporating a second timer that provides a time value for imaging timing are communicably connected to each other, the method comprising:

• measuring a time difference between the time value of the first timer and the time value of the second timer;
• selecting, from a plurality of types of correction processing having different correction periods, correction processing based on an operating state of the radiographic apparatus, the selected correction processing being configured to correct at least one of the first timer and the second timer so as to eliminate the time difference;
• and
• executing the selected correction processing.

A control method for a radiographic apparatus including a communication unit configured to communicate with an irradiation control apparatus and timer unit configured to provide a time value for a timing of radiation imaging, the radiographic apparatus performing the radiation imaging using radiation emitted from the irradiation control apparatus, the method comprising:

• measuring a time difference between the time value of the timer unit and a time value of a timer of the irradiation control apparatus by communication via the communication unit;
• selecting, from a plurality of types of correction processing having different correction periods, correction processing based on an operating state of the radiographic apparatus, the selected correction processing being configured to correct the timer unit so as to eliminate the time difference;
• and
• executing the selected correction processing.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method for a radiographic apparatus including a communication unit configured to communicate with an irradiation control apparatus and timer unit configured to provide a time value for a timing of radiation imaging, the radiographic apparatus performing the radiation imaging using radiation emitted from the irradiation control apparatus, the method comprising:

• measuring a time difference between the time value of the timer unit and a time value of a timer of the irradiation control apparatus by communication via the communication unit;
• selecting, from a plurality of types of correction processing having different correction periods, correction processing based on an operating state of the radiographic apparatus, the selected correction processing being configured to correct the timer unit so as to eliminate the time difference;
• and
• executing the selected correction processing.