This trial will utilize TRIAD for dosimetry digital treatment data submission. TRIAD is the American College of Radiology’s (ACR) image exchange application and it is used by the RTOG. See here for information on installing TRIAD.

Please fill out the credentialing status inquiry form to let us know that you would like to be credentialed for this protocol.

Proton centers must have a partner photon center to be credentialed and vice versa. All sites must submit a Letter of Intent (LOI) to NRG Oncology Regulatory to receive approval to participate in this trial. You can find the LOI on the CTSU website. Select the trial, and the LOI form can be found under Documents/Site registration. The LOI contains instructions on how to submit it to NRG for review.

In order to complete the IMRT credentialing process the following items must be completed:

• Complete or update the Facility Questionnaire.

• Irradiate the IROC Houston's IMRT H&N phantom. Please fill in the request form online.

In order to complete the Proton credentialing process, the following items must be completed:

• All participants must have completed baseline approval for proton therapy.

• All participants are asked to complete the Facility Questionnaire.

• Irradiate IROC Houston's proton brain phantom. Please fill in the request form online.