* Hemoglobin ≥ 8.0 g/dl (Note: The use of transfusion or other intervention to achieve Hgb ≥ 8.0 g/dl is acceptable)
* Creatinine ≤2 X the upper limit of normal
* Bilirubin ≤ 1.5 X upper limit of normal
* Aspartate transaminase (AST) ≤ 3 X upper limit of normal
6. Men and women of childbearing potential must be willing to exercise an effective form of birth control (abstinence/contraception) while on study and for 3 months after therapy completed.
7. Patients must be able to read and write English to comply with the questionnaire portions of the protocol.
8. Subjects must sign a written informed study consent and HIPAA consent prior to performance of study-specific procedures or assessments and must be willing to comply with treatment and follow up.
You may not be if
1. Patients who have had previous radiotherapy in the thorax.
2. Patients who have a history of ataxia telangiectasia or other documented history of radiation hypersensitivity.
3. Patients who have a history scleroderma or other active connective tissue disease.
4. Women of childbearing potential must not be pregnant with a negative urine pregnancy test within 72 hours prior to registration and non-lactating; postmenopausal woman must have been amenorrheic for at least 12 months to be considered of non-childbearing potential; woman status post oophorectomy or hysterectomy are considered non-childbearing potential
5. Patients who have uncontrolled inter-current illness including, but not limited to, psychiatric illness/social situations that would limit compliance with study requirements.