WEX04
RAS/INR, Moscow, Russia
* A.V. Dementyev, N.M. Sobolevsky, Radiation Measurements, 1999; v.30, p.553.
RAS/INR, Moscow, Russia
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WEX04 |
Radionuclide Production by High Intensity Proton Irradiation at the INR Linear Accelerator | |
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The INR linear accelerator provides a high intensity beam of intermediate-energy protons for both applied and fundamental research. The beam at 160 MeV can be extracted from the main line and delivered to an isotope production facility. Specially designed targets are irradiated at the facility to produce Curie amounts of various radionuclides for medicine and industry, namely, 82Sr, 103Pd, 117mSn, 225Ac, 223Ra, 109Cd, 22Na. Production rate of radionuclide is usually limited by the ability of target to sustain the high intensity beam. Targetry development comprises: - Choice of target material with appropriate nuclear (cross-section of a desired radionuclide) and thermal physics (thermal conductivity, heat capacity) properties, as well as material for target encapsulation; - Analysis of interaction of proton beam with target material. Parameters of beam, cooling water, and other factors are being investigated to result in tentative geometric parameters of target. Spatial-energetic degradation of beam is evaluated by a Monte Carlo code STRAGL*; - Simulation of temperature generated in the target due to heat release of protons. Computations are performed by means of the software complex ANSYS; - Fabrication and irradiation of experimental targets; control of target integrity during irradiation and after it via monitoring the electroconductivity and radioactive impurities of cooling water, visual inspection of target, etc., optimization of target design for routine production.
* A.V. Dementyev, N.M. Sobolevsky, Radiation Measurements, 1999; v.30, p.553. |
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Slides WEX04 [4.515 MB] | |
| THX02 | Experience in Research, Development, Construction and Commissioning of Normally Conducting Accelerating Structures | 278 |
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| The experience and results of research, development, construction and start of normally conducting accelerating structures for high intensity hadron linear accelerators at medium and high energii is summarized Created methods and obtained results provided construction and start of operation of accelerating system in INR H− linac with designed energy 600 MeV. The research results allow generalize the properties of high energy structures and develop methods and criteria for improvements, with were realized in the development and commissioning of accelerating structures in another foreign laboratories. Basing on research results, the high energy accelerating structure, which surpasses analogues in the total list of parameters, is proposed and approved. | ||
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Slides THX02 [1.259 MB] | |