Which of the following are important parts of a simulator?

The important parts of a simulator primarily focus on providing comprehensive imaging capabilities that allow visualization and positioning for treatment planning. The imaging system is essential for acquiring high-quality images of the patient's anatomy, enabling the precise localization of tumors and surrounding tissues. The x-ray source is crucial as it generates the images that assist in treatment simulation. Meanwhile, the patient treatment couch plays a key role in ensuring that the patient is positioned correctly and consistently for both simulation and subsequent treatment sessions. Collectively, these components are vital for accurately simulating and planning the delivery of radiation therapy, ensuring that the tumor receives the required dose while sparing healthy tissue as much as possible.