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TRIUMF brown reports

TRIUMF

The TRIUMF-ISOL presented in this proposal is a radioactive beams facility. Isotopes produced in targets bombarded with the TRIUMF proton beam are transported as intense, mass— separated beams of variable energy to the experimental areas. The target assembly will be installed near the end of TRIUMF beam line 4A while most of the facility will be housed in a new building attached to the north wall of the present experimental proton hall. The proposed facility will be unique. It will consist of a high yield on-line isotope separator (ISOL) and a post-accelerator with variable output energy. The isotope production rate will surpass that of any other ISOL in operation or actively planned in the world. The post—accelerated radioactive beam will itself be unique, offering new opportunities for research in fields ranging from medical physics and chemistry to nuclear astrophysics. In particular, it will permit for the first time the mounting of experiments of low intrinsic sensitivity, the production of radioactive targets of isotopically pure nuclides, and the investigation of nuclear reactions involving short-lived isotopes. The post-accelerator will be ideal for the investigation of nuclear reactions of particular interest for nucleosynthesis in stars. This will be the first, and for the foreseeable future, the only facility where such systematic studies can be carried out. Although much of the technology for ISOLs and post—accelerators is well developed, the TRIUMF-ISOL will operate in very different conditions. The ISOL will be situated in a radioactively hostile environment which will be more severe than in any existing facility. The post-accelerator must be capable of efficiently accelerating a wide variety of low energy ions. Careful studies will be required and the testing of new design concepts may be necessary. In this proposal, we have presented in detail our approach towards the design and construction of a new—generation type of ISOL and a preliminary design for the post accelerator, which is still currently under study. The total estimated capital cost is $4.4 M for the ISOL and approximately $4.5 M for the post— accelerator. The cost of the main building, including the necessary shielding requirements, will be $4.6 M. A total manpower of 44 man-years will be required for its construction. When completed, the facility will be able to handle about 2000 h per year of proton-beam-on-target operation. A total staff of 31 personnel will be required for its operation and the annual operating budget (including salaries) is estimated to be $3.0 M. TRIUMF-ISOL will add a new dimension to the TRIUMF operation. It will offer new and unique opportunities for research in areas which are different from those of current TRIUMF principal interests. This will enhance TRIUMF's role as a national facility for a wider subatomic physics community. Its access will be sought by many scientists worldwide. See TRIUMF brown reports ; TRI-84-1 URI: http://hdl.handle.net/2429/53930

Report

eng

Vancouver : University of British Columbia Library

10.14288/1.0107839

TRIUMF

Researcher

http://creativecommons.org/licenses/by-nc-nd/2.5/ca/