Today, a client in the hospital wants to extend the cord of the X-ray hand switch. It is the hand switch on the mobile bedside machine. The customer means that the X-ray hand switch cord is too short and the radiation is too close to the bedside table. , I want to lengthen the X-ray hand brake switch line. Ask the customer whether they want to grow to a few meters, the customer refers to 100 meters. To be honest, X-ray hand switches have been sold for many years. This is the first time I have heard that the cable length is 100 meters. It’s not that we can’t do it, but if the cable is too long, the sensitivity of the hand switch will be poor. If the customer’s device is a mobile bedside device, the dose is relatively small. If the line is too long and far away from the console, operation is inconvenient. If you want to reduce the amount of radiation, doctors should wear radiation protection suits.