Practitioner's certificate, and depending on the situation, radiation medicine (technology) ultrasound medicine (technology 0 nuclear medicine (technology), employment certificate for large equipment.
If your job is X-ray technology, you should take the radiology exam. If it is ct or mr or dsa or nuclear medicine, you must have a certificate of large equipment, and of course you must take the radiology exam. In principle, you can't do B-ultrasound or imaging diagnosis, because you need to have a doctor's qualification certificate, but this major can't be tested, but some small hospitals may be willing to do it, so you should ask about the future treatment, professional title and what to do with all kinds of certificates. Wait a minute. After graduation, I didn't just say I wanted to take the certificate, but I kept taking it. As long as I am in this line of work, I must be promoted to the title, because technicians, technicians, supervisors, second-highest and right-highest are all linked to bonuses. Just keep taking the exam.