Experimental survey of the sticking problem in muon catalyzed dt fusion |
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| Authors: | C Petitjean D V Balin V N Baturin P Baumann W H Breunlich T Case K M Crowe H Daniel Yu S Grigoriev F J Hartmann A I Ilyin M Jeitler P Kammel B Lauss K Lou E M Maev J Marton M Mühlbauer G E Petrov W Prymas W Schott G G Semenchuk Yu V Smirenin A A Vorobyov N I Voropaev P Wojciechowski J Zmeskal |
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| Institution: | (1) Paul Scherrer Institute (PSI), CH-5232 Villigen PSI, Switzerland;(2) Petersburg Nuclear Physics Institute (PNPI), 188350 Gatchina, Russia;(3) Physics Department, Technical University Munich (TUM), D-8046 Garching, Germany;(4) Institute for Medium Energy Physics (IMEP), Austrian Academy of Sciences, A-1090 Vienna, Austria;(5) Lawrence Berkeley Laboratory (LBL) and UCB, 94720 Berkeley, CA, USA |
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| Abstract: | The  sticking process dt   + n, which constitutes the most severe limit to the number of fusions which a muon can catalyze, is reviewed. Many attempts were made to determine by calculations and measurements the probability for initial sticking
s
0
(immediately after dt fusion) and for final sticking
s (after the came to rest). Previous results based on neutron disappearance rates and on the observation of -X-rays were controversial and also in some disagreement with theory. New data are reported from PSI on direct observation of final sticking, using a setup with the St. Petersburg ionization chamber. These data mark a significant improvement in reliability and may clarify questions concerning previous discrepancies. The new results is
s (0.56±0.04)%, lower than the theory prediction
s=(0.65±0.03)%, at medium density. |
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