Instructions for SRS Quality Audit System Page 1/5 INSTRUCTIONS FOR SRS QUALITY AUDIT SYSTEM Enclosed is a head phantom with two inserts; an imaging insert containing the "tumor," and a dosimetry insert containing film and TLD. The purpose of the phantom is to verify dose and dose distribution, as well as localization of the dose relative to a simulated “tumor." The imaging insert contains a nylon sphere suspended in water as the target volume (tumor). The dosimetry insert contains two orthogonal sheets of GAFchromic film passing through the center of the target and two TLD within 0.5 cm of the center of the target (see the figure). In order to ensure optimum precision of our evaluation, the following constraints should be observed in planning the treatment: The maximum dose to the film should be approximately 30 Gy. The dose to the TLD (at the center of the target) should be approximately 30 Gy. Our report to you will include the following: The dose at the center of the target (nylon ball) measured by TLD. Dose profiles measured by film. Image, plan, and treat this phantom as if it were a real patient. Please send us enough documentation so we can tell what you have done. Please follow the enclosed instructions and return the phantom and paperwork as soon as possible. The phantom has been shipped to you with the following: 1. Anthropomorphic Phantom Shell 2. Imaging Insert 3. Dosimetry Insert 4. Drain Plug Tool (blue, white or optional) 5. Securing plate Film TLD Alignmen Pin Nylon Ball Imaging insert Alignment Pin Dosimetry Insert
Instructions for SRS Quality Audit System Page 2/5 RETURN SHIPPING INSTRUCTIONS Please return the phantom using the enclosed prepaid mailing label. For technical questions and questions regarding the return shipment contact Trang Nguyen (713)-745-8989, [email protected] Nadia Hernandez (713)-745-8989, [email protected] Paola Alvarez (713)-745-8989, [email protected] Paige Summer (713) 745-8989, [email protected] DOSIMETRY INFORMATION TO BE SUBMITTED The following information is to be submitted to the IROC Houston (results will not be analyzed until the digital treatment plan is received): Please follow the login URL: Login information: Username: [email protected] Password:
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- Spring '17
- radiosurgery, srs quality audit, imaging insert