Current Search:   Stevens, Ryan (x)

View All Items

  • CSV Spreadsheet
(1 - 3 of 3)
Improved Methodology of Static HDMLC Virtual Cone based Rapid Arcs for Stereotactic Ablative Radiotherapy
Title
Improved Methodology of Static HDMLC Virtual Cone based Rapid Arcs for Stereotactic Ablative Radiotherapy.
Creator
Stevens, Ryan, Shang, Charles, Muhammad, Wazir, Florida Atlantic University, Department of Physics, Charles E. Schmidt College of Science
Abstract/Description
Physical cones equipped on GammaKnife, Cyberknife, and C-arm linacs have been the standard practice in Stereotactic Ablative Radiotherapy (SART) for small intracranial lesions, such as treating trigeminal or glossopharyngeal neuralgia targets. The advancement of high-definition multi-leaf collimators (HDMLC), treatment planning systems, and small field dosimetry now allows for treatment without the need for an auxiliary mounted physical cone. This treatment type uses the “virtual cone”, a...
Show morePhysical cones equipped on GammaKnife, Cyberknife, and C-arm linacs have been the standard practice in Stereotactic Ablative Radiotherapy (SART) for small intracranial lesions, such as treating trigeminal or glossopharyngeal neuralgia targets. The advancement of high-definition multi-leaf collimators (HDMLC), treatment planning systems, and small field dosimetry now allows for treatment without the need for an auxiliary mounted physical cone. This treatment type uses the “virtual cone”, a permanent high-definition MLC, arrangement to deliver “very small fields” with comparable spherical dose distributions to physical cones. The virtual cone therapy, on a Varian Edge™ linac using multiple non-coplanar arcs with static HDMLCs, is a comparable technique that can be used to treat small intracranial neuralgia or other small lesions. In this investigation, two flattening filter free (FFF) photon beams, 6MV FFF and 10MV FFF, were tested for optimal delivery and safety conditions for treating intracranial lesions. The virtual cone method on a Varian Edge™ Linear accelerator using rapid arc stereotactic radiosurgery was used to treat cranial neuralgia for chronic pain for six patients. Absolute dose, relative dose measurements, and monitor units were the main characteristics that were examined to decide which energy was the best for treatment. Source-to-axis distances (SAD) of 100cm measurements were taken at depths of 10cm and 5cm, respectively.
Show less
Date Issued
2020
PURL
http://purl.flvc.org/fau/fd/FA00013630
Subject Headings
Radiotherapy, Radiation dosimetry, Stereotaxic Techniques
Format
Document (PDF)
Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment
Title
Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment.
Creator
Abbott, Benjamin W., Jones, Jeremy B., Schuur, Edward A. G., Chapin III, F. Stuart, Bowden, William B., Bret-Harte, M. Syndonia, Epstein, Howard E., Flannigan, Michael D., Harms, Tamara K., Hollingsworth, Teresa N., Mack, Michelle C., McGuire, A. David, Natali, Susan M., Rocha, Adrian V., Tank, Suzanne E., Turetsky, Merritt R., Vonk, Jorien E., Wickland, Kimberly P., Aiken, George R., Alexander, Heather D., Amon, Rainer M. W., Benscoter, Brian, Bergeron, Yves, Bishop, Kevin, Blarquez, Olivier, Bond-Lamberty, Ben, Breen, Amy L., Buffam, Ishi, Cai, Yihua, Carcaillet, Christopher, Carey, Sean K., Chen, Jing M., Chen, Han Y. H., Christensen, Torben R., Cooper, Lee W., Cornelissen, J. Hans C., de Groot, William J., DeLuca, Thomas H., Dorrepaal, Ellen, Fetcher, Ned, Finlay, Jacques C., Forbes, Bruce C., French, Nancy H. F., Gauthier, Sylvie, Girardin, Martin P., Goetz, Scott J., Goldammer, Johann G., Gough, Laura, Grogan, Paul, Guo, Laodong, Higuera, Philip E., Hinzman, Larry, Hu, Feng Sheng, Hugelius, Gustaf, Jafarov, Elchin E., Jandt, Randi, Johnstone, Jill F., Jan Karlsson, Kasischke, Eric S., Kattner, Gerhard, Kelly, Ryan, Keuper, Frida, Kling, George W., Kortelainen, Pirkko, Kouki, Jari, Kuhry, Peter, Laudon, Hjalmar, Laurion, Isabelle, Macdonald, Robie W., Mann, Paul J., Martikainen, Pertti J., McClelland, James W., Molau, Ulf, Oberbauer, Steven F., Olefeldt, David, Paré, David, Parisien, Marc-André, Payette, Serge, Peng, Changhui, Pokrovsky, Oleg S., Rastetter, Edward B., Raymond, Peter A., Raynolds, Martha K., Rein, Guillermo, Reynolds, James F., Robards, Martin, Rogers, Brendan M., Schädel, Christina, Schaefer, Kevin, Schmidt, Inger K., Shvidenko, Anatoly, Sky, Jasper, Spencer, Robert G. M., Starr, Gregory, Striegl, Robert G., Teisserenc, Roman, Tranvik, Lars J., Virtanen, Tarmo, Welker, Jeffrey M., Zimov, Sergei
Date Issued
2016-03-07
PURL
http://purl.flvc.org/fau/fd/FAUIR000121
Format
Citation
Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment
Title
Biomass offsets little or none of permafrost carbon release from soils, streams, and wildfire: an expert assessment.
Creator
Abbott, Benjamin W, Jones, Jeremy B, Schuur, Edward A G, Chapin III, F Stuart, Bowden, William B, Bret-Harte, M Syndonia, Epstein, Howard E, Flannigan, Michael D, Harms, Tamara K, Hollingsworth, Teresa N, Mack, Michelle C, McGuire, A David, Natali, Susan M, Rocha, Adrian V, Tank, Suzanne E, Turetsky, Merritt R, Vonk, Jorien E, Wickland, Kimberly P, Aiken, George R, Alexander, Heather D, Amon, Rainer M W, Benscoter, Brian W, Bergeron, Yves, Bishop, Kevin, Blarquez, Olivier, Ben Bond-Lamberty, Breen, Amy L, Buffam, Ishi, Cai, Yihua, Carcaillet, Christopher, Carey, Sean K, Chen, Jing M, Chen, Han Y H, Christensen, Torben R, Cooper, Lee W, Cornelissen, J Hans C, de Groot, William J, DeLuca, Thomas H, Dorrepaal, Ellen, Fetcher, Ned, Finlay, Jacques C, Forbes, Bruce C, French, Nancy H F, Gauthier, Sylvie, Girardin, Martin P, Goetz, Scott J, Goldammer, Johann G, Gough, Laura, Grogan, Paul, Guo, Laodong, Higuera, Philip E, Hinzman, Larry, Hu, Feng Sheng, Hugelius, Gustaf, Jafarov, Elchin E, Jandt, Randi, Johnstone, Jill F, Jan Karlsson, Kasischke, Eric S, Kattner, Gerhard, Kelly, Ryan, Keuper, Frida, Kling, George W, Kortelainen, Pirkko, Kouki, Jari, Kuhry, Peter, Laudon, Hjalmar, Laurion, Isabelle, Macdonald, Robie W, Mann, Paul J, Martikainen, Pertti J, McClelland, James W, Molau, Ulf, Oberbauer, Steven F, Olefeldt, David, Paré, David, Parisien, Marc-André, Payette, Serge, Peng, Changhui, Pokrovsky, Oleg S, Rastetter, Edward B, Raymond, Peter A, Raynolds, Martha K, Rein, Guillermo, Reynolds, James F, Robards, Martin, Rogers, Brendan M, Schädel, Christina, Schaefer, Kevin, Schmidt, Inger K, Shvidenko, Anatoly, Sky, Jasper, Spencer, Robert G M, Starr, Gregory, Striegl, Robert G, Teisserenc, Roman, Tranvik, Lars J, Virtanen, Tarmo, Welker, Jeffrey M, Zimov, Sergei
Date Issued
2016-03-07
PURL
http://purl.flvc.org/fau/flvc_fau_islandoraimporter_10.1088_1748-9326_11_3_034014_1632246943
Format
Citation