000007647 001__ 7647 000007647 005__ 20250424233244.0 000007647 0247_ $$2DOI$$a10.6083/m4mc8zj0 000007647 037__ $$aETD 000007647 245__ $$aSaturation and response dependence of OSLDs and microStar reader in the high dose range for INTRABEAM kV x-rays and initial investigation into the use of Gafchromic film as an in vivo dosimeter in the high dose region 000007647 260__ $$bOregon Health and Science University 000007647 269__ $$a2017 000007647 336__ $$aThesis 000007647 502__ $$bM.S. 000007647 520__ $$aOregon Health and Science University (OHSU) performs intraoperative radiotherapy (IORT) in conjunction with Breast-conserving surgery (BCS) for early stage breast cancer. IORT procedures are performed using the Carl Zeiss INTRABEAM device which uses a miniature X-ray probe with spherical applicators and delivers dose to the lumpectomy bed using low kV superficial X- rays of 50 kVp. Landauer® NanoDot Optically Stimulated Luminescence Dosimeters (OSLD) in conjunction with the Landauer® microStar reader were used to meet the unique low energy in vivo dosimetry requirements to measure dose to the skin close to the treatment area. However, the characteristics of OSLDs have not been thoroughly investigated in the dose range of superficial energies. The purpose of this study is to investigate the properties of OSLDs under these conditions and to preliminarily investigate the properties and potential usage of gafchromic EBT 3 film for INTRABEAM in vivo dosimetry. 000007647 650__ $$aOptically Stimulated Luminescence Dosimetry$$040121 000007647 650__ $$aBreast Neoplasms$$015809 000007647 691__ $$aSchool of Medicine$$041369 000007647 7001_ $$aBryant, Travis 000007647 8564_ $$9f313f701-f483-4202-b2b7-63bb802b14e3$$s1664093$$uhttps://digitalcollections.ohsu.edu/record/7647/files/Bryant.Travis.2017.pdf$$ePublic$$20dca05415591e193b4a37d3857ead7f5$$31 000007647 905__ $$a/rest/prod/63/95/w7/83/6395w783q 000007647 909CO $$ooai:digitalcollections.ohsu.edu:7647$$pstudent-work 000007647 980__ $$aTheses and Dissertations