A beam transport system for the medical facility at TRIUMF.

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dc.contributor.authorHarrison, Robert Williamen_US
dc.date.accessioned2024-08-14T16:44:22Z
dc.date.available2024-08-14T16:44:22Z
dc.date.copyright1972en_US
dc.date.issued1972
dc.degree.departmentDepartment of Physics
dc.degree.departmentDepartment of Physics and Astronomy
dc.degree.levelMaster of Science M.Sc.en
dc.description.abstractPreliminary experiments indicate that a beam of negatively charged pions should have a depth-dose pattern that is much more favorable for irradiation of deep-seated malignant tumors than any other type of radiation beam. Consequently, it is proposed that a beam transport system to transmit a pion beam for radiobiological testing of this possibility be built in conjunction with the TRIUMF cyclotron to take advantage of the pions that will be available when the high energy, high intensity proton beam strikes a target in Beam Line I. The beam transport system that is the sub­ject of this thesis should be able to transmit a beam that forms a solid angle of 10 msr at the target and has a momen­tum spread of ±10% of the central momentum to deliver a 100 rad dose to a volume of 10 cm x 10 cm x 8 cm thick. An achromatic system consisting of two 45 degree bending magnets and five quadrupole focussing magnets has been designed to first order. In addition, the second order aberrations and methods for their correction are discussed; two sextupole magnets should be included in the system to correct some of these geometric and chromatic aberrations. The second order design meets all of the requirements for radiobiology experiments and pre-clinical testing of the potentialities of pions for radiotherapy.en
dc.format.extent152 pages
dc.identifier.urihttps://hdl.handle.net/1828/18056
dc.rightsAvailable to the World Wide Weben_US
dc.titleA beam transport system for the medical facility at TRIUMF.en_US
dc.typeThesisen_US

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