Oral presentation on the validation of the active current-mode operation of the Nested Neutron Spectrometer using a novel passive system with gold foils.
Background/Purpose: Based on previous findings, we found that Patient-Reported Outcomes (PROs) completed by oncology patients electronically at point-of-care was acceptable and provided immediate, focused discussions with clinicians regarding symptom …
Purpose: Nuclear reactions induced during high-energy radiotherapy produce secondary neutrons that, due to their carcinogenic potential, constitute an important risk for the development of iatrogenic cancer. To quantify this risk, the ICRP neutron …
Purpose: Radiation therapy with high-energy photons poses a risk of secondary malignancies to patients due to photoneutrons generated in the linac head. The risk associated with these neutrons also raises safety concerns for the personnel involved. …
Purpose: Radiotherapy linacs producing high energy photon beams create unwanted activated by-products through photodisintegration and neutron capture. Activated material may pose a risk to staff and patients.
Methods: Measurements (Varian …
Purpose: To quantitatively measure rectal gas content over the course of prostate cancer radiotherapy and to examine how rectal filling type (gas or feces) impacts rectal dose. Methods: Rectums were manually contoured on daily cone-beam CT images of …
Purpose: To assess the contouring practices of radiation oncologists during everyday clinical practice and their impact on patient DVHs at a population level.
Materials and Methods: The DVHs of 560 prostate cancer patients who had undergone …