Dental Cleaning Equipment I Am A Fairly New Dental Assistant?

I am a fairly new dental assistant? - dental cleaning equipment

I wonder whether I on the exposure to X-rays should be concerned accessed 10 times. I am not allowed to take photographs, and even though the dentist take X-rays, I clean the dental chair and equipment. Well, as I hit the wrong button and start the X-ray radiography, where I am. I noticed my hair falling out than normal. Should I worry about my health? I am not a certificate of the DA, I've never been to school. I was trained on the job market. But I am a little afraid of my body exposed to so often? Any tips?