RT Book, Section A1 Bellew, James W. A1 Michlovitz, Susan L. A1 Nolan Jr., Thomas P. SR Print(0) ID 1180668800 T1 Glossary T2 Modalities for Therapeutic Intervention, 6e YR 2016 FD 2016 PB McGraw-Hill Education PP New York, NY SN 9780803645639 LK fadavisat.mhmedical.com/content.aspx?aid=1180668800 RD 2024/10/14 AB Absolute atmosphere (ATA) The atmospheric pressure at sea level, equal to 1 ATA (760 mm Hg).