room. Allows us to see the patient at all times during the treatment. Audio speaker that allows us to communicate with the patient while being out of the room. Allows us to hear them and they to hear us. 5 Interlocks HWFA -means hardware fault and that there is an equipment failure within the machine PENDT -pendent is not on its hook DOOR -door is open or not properly functioning DOS1 -first ionization chamber did not clear reading from previous treatment or it is unable to read the dose BMAG -too much or not enough current, water temp is too cold or hot, short circuit in BMAG coils, defective BMAG
Electron Beam Path (Tello, 53) Photon Beam Path (Tello, 54)
Safety Features Emergency stop button. Use only when there is an emergency with the gantry and the gantry is not responding. Push button especially when gantry is radiating the patient or room when it is not supposed to X-ray sign lights up red when radiation use is in progress. Sign lights up with every treatment. (Beam on indicator) Door interlocks that triggers the computer and gantry to know when the door is open and closed. If the door opens during treatment. The gantry will automatically stop treatment The hole where a big metal bar goes to manually lower the couch if the couch fails to lower electronically.
Safety Features Cont.. Visual camera that allows us to see the patients during treatment. Audio speaker that allows us to hear our patients during treatment. Area Survey Monitor- Device that can be mounted to the wall that is outside of the treatment room that lights up when there is radiation being detected in the room. It should light up when treatment is in the works but should not light up after the treatment field is complete. Circuit Breaker- A powered box outside of the treatment room and in the workstation that allows the therapist to manually turn of the power without entering the room.
QUESTIONS TO ADDRESS Can patients be treated if the audio system is non- functional? • NO. The therapist must be able to see and HEAR the patient during treatment Can patients be treated if 1 of the two visual monitors is non- functional? • YES. As long as one visual monitor is functional and you can see the patient you can treat them.
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