Single Fraction Stereotactic Body Radiation Therapy After Surgery in Treating Patients With Non-small Cell Lung Cancer

Inclusion Criteria: * Have an Eastern Cooperative Oncology Group (ECOG) performance status =\< 2 * Has completed curative-intent surgical resection of lung primary with pathologic diagnosis of NSCLC disease, with pathology to include at least 1 of the following: * Close (\<=2 mm) or Positive surgical margin (R1/R2) or pathologic N2 disease (with or without extracapsular extension \[ECE\]) * Anatomic pulmonary resection (lobectomy or pneumonectomy) preferred, although sublobar resection is allowed at the discretion of the treating surgeon. Systemic lobe-specific nodal sampling is required. A minimum of 3 N2 stations must be sampled. Selective lymph node dissection should be completed for patients with known N2 disease * Women of child-bearing potential must agree to use adequate contraceptive methods (e.g., hormonal or barrier method of birth control; abstinence) * Patient or legal representative must be willing and able to participate in protocol requirements, including pre- and post-treatment survey evaluations and clinical assessments * Patient or legal representative must understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure Exclusion Criteria: * Contraindication to SBRT * This includes the inability to cooperate with any aspect of SBRT such as the inability to lie still and breath reproducibly * Prior radiation th…