BIRMINGHAM, Ala. (AP) — A doctor accused of secretly recording girls and other guests in his home for years was sentenced to 30 years in prison after being convicted of producing and possessing child pornography, federal prosecutors said Thursday.

Jurors convicted Ronald Tai Young Moon Jr., 56, of Vestavia Hills in February, and U.S. District Judge Annemarie C. Axon sentenced him on Wednesday, according to a statement by the U.S. attorney’s office in Birmingham.

Using cameras hidden at his home, Moon secretly recorded neighbors and girls, including some who were changing into bathing suits for pool parties, evidence showed. The taping went on from the mid-1990s until around 2012, authorities said.

Investigators found videotapes at Moon’s office, where multiple hidden cameras also were found.

Moon worked at The Industrial Athlete clinic in Birmingham until his medical license was revoked earlier this year, authorities said.