Here’s a link I found by searching ‘surgeon radiation exposure’: https://spinalnewsinternational.com/reducing-radiation-expos...

This one discusses limiting procedures per year. Apparently in one example a surgeon could do 4000+ safely with a lead apron and only 300 without one. https://insights.ovid.com/crossref?an=00007632-201304010-000...

There appears to be plenty more material out there relating to this.