See Below The Steps On How To Become A Radiographer In Nigeria:

Tertiary qualification in medical radiation science, either at undergraduate or graduate level

Medical imaging technologists will undertake one year of paid supervised practice working within an accredited clinical radiology department which is managed by the (air) australian institute of radiography.

Having successfully completed this year, graduates will be granted a validated statement of accreditation from air and may apply to the relevant board of registration (depending on the state ) to be authorised to practice.