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Time-of-flight measurement of resonant molecular formation in muon-catalyzed dt fusion |
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| Authors: | Marshall G. M. Adamczak A. Bailey J. M. Beer G. A. Beveridge J. L. Douglas J. L. Faifman M. P. Fujiwara M. C. Huber T. M. Jacot-Guillarmod R. Kammel P. Kherani N. P. Kim S. K. Knowles P. E. Kunselman A. R. Maier M. Markushin V. E. Martoff C. J. Mason G. R. Melezhik V. S. Mulhauser F. Olin A. Petitjean C. Piller C. Porcelli T. A. Steffens C. P. Zhang Y. Zmeskal J. |
| Affiliation: | (1) TRIUMF, V6T 2A3 Vancouver, BC, Canada;(2) INP, 31-342 Krakow, Poland;(3) Chester Technology, Chester, UK;(4) University of Victoria, V8W 2Y2 Victoria, BC, Canada;(5) RRC Kurchatov Institute, 123182 Moscow, Russia;(6) University of British Columbia, V6T 2A6 Vancouver, BC, Canada;(7) Gustavus Adolphus College, 56082 St. Peter, MN, USA;(8) University of Fribourg, CH-1700 Fribourg, Switzerland;(9) LBL, 94720 Berkeley, CA, USA;(10) Ontario Hydro, M8Z-5S4 Toronto, ON, Canada;(11) Jeonbuk National University, 560-756 Jeonju, Korea;(12) University of Wyoming, 82071 Laramie, WY, USA;(13) Temple University, 19122 Philadelphia, PA, USA;(14) JINR, 141980 Dubna, Russia;(15) Paul Scherrer Institute, CH-5232 Villigen, Switzerland;(16) Austrian Academy of Sciences, IMEP, A-1090 Wien, Austria;(17) Present address: University of Fribourg, CH-1700 Fribourg, Switzerland |
| Abstract: | Preliminary results are reported for an experiment at TRIUMF where a time-of-flight technique was tested for measuring the energy dependence of the rate for muon-catalyzed dt fusion. Muonic tritium atoms were created following transfer of negative muons from muonic protium in a layer of solid hydrogen (protium) containing a small fraction of tritium. The atoms escaped from the solid layer via the Ramsauer-Townsend mechanism, traversed a drift region of 18 mm, and then struck an adjacent layer of deuterium, where the muonic atom could form a molecular system. The time of detection of a fusion product (neutron or alpha) following muon arrival is dependent upon the energy of the muonic tritium atom as it traverses the drift region. By comparison of the time distribution of fusion events with a prediction based on the theoretical energy dependence of the rate, the strength of resonant formation can in principle be determined. The results extracted so far are discussed and the limitations of the method are examined. |
| Keywords: | muon-catalyzed fusion muonic hydrogen muonic atoms muonic molecules |
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