1986 Fiscal Year Final Research Report Summary
Ra-needle equivalent dose destribution made by slit beam rotation therapy using X-ray of medical linear accelerator
| Project/Area Number |
60870036
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| Research Category |
Grant-in-Aid for Developmental Scientific Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Radiation science
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| Research Institution | Hokkaido University |
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Principal Investigator |
IRIE Goro Hokkaido University School of Medicine, Professor, 医学部, 教授 (30001788)
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| Co-Investigator(Kenkyū-buntansha) |
TSUJII Hirohiko Hokkaido University School of Medicine, Associate Professor, 医学部, 助教授 (50088853)
KAMADA Tadashi Hokkaido University Hospital, Instructor, 医学部付属病院, 助手 (90150242)
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| Project Period (FY) |
1985 – 1986
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| Keywords | X-ray Slit beam / rotation irradiation / 小線源線量分布 |
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| Research Abstract |
The result of this research proved that Ra-needle equivqlent dose distribution. Can be obtained by rotating irradiation of slited thin high energy X-ray of 10MV. Controlling the relation between rotation angleof irradiation head and guntry of the machine, dose distribution corresponding any direction of Ra-needle is prove to be available. The controlling unit for the above move-ment was developed in this research project.
This irradiation showed better respons for a group of malignant glioma cases than usual flat irradiation. One of the short comming of this irradiation method is its time consumption by cutting down the X-ray beam by so narrow slit as narrower than size of X-ray focus. Discussion with technical staff of Toshiba Co. LTD. concluded it is technically possible to over-come the short comming by designing a new accelerator.
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