A system having an X-radiation generator； an X-radiation detector； and a portable computing device. The X-radiation detector has a first wireless communication module, and a non-volatile memory. The X-radiation detector is configured to: self-trigger acquisition of an X-radiation image, store the acquired X-radiation image, and transmit the X-radiation image (or a lower-resolution version) via the first wireless communication module. The portable computing device has a second wireless communication module, and a digital screen. The portable computing device is configured to receive the X-radiation image via the second wireless communication module that communicates with the first wireless communication module, display the X-radiation image on the digital screen, enable a user to select whether to discard the X-radiation image or to transmit the X-radiation image to a server, and responsive to the user selecting to transmit the X-radiation image to the server, transmit the X-radiation image to the server.
