A portable positron accumulator for antihydrogen formation
نویسندگان
چکیده
منابع مشابه
A portable positron accumulator for antihydrogen formation
A pulsed source of positrons has been developed which may be useful for antihydrogen (Iq) formation because it is portable when compared to accelerator-based sources. This positron accumulator uses a Penning-style trap to collect moderated positrons from a radioactive source. The positron pulses may be emitted with repetition rates in the range of 50-1000 Hz, which is appropriate for I:I produc...
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This paper investigates the evolution in binding energy of antihydrogen atoms formed from stationary antiprotons located within a strongly magnetized positron plasma. Three-body recombination and a collisional cascade to deeper binding, limited by a kinetic bottleneck at a binding energy of 4T, dominate the initial antihydrogen formation process. A classical Monte-Carlo simulation is used to de...
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Production of antihydrogen atoms by mixing antiprotons with a cold, confined, positron plasma depends on parameters such as the plasma density and temperature. We discuss a nondestructive diagnostic, based on an analysis of excited, low-order plasma modes, that provides comprehensive characterization of the positron plasma in the ATHENA antihydrogen apparatus. The dipole and quadrupole modes of...
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A new positron accumulation scheme with an electron plasma is presented. The electron plasma will be used as an energy absorber of positrons like a buffer gas. A unique feature of the scheme is an ability to accumulate a large number of positrons still keeping the whole system under ultra high vacuum (UHV) environment. The accumulation efficiency, which is defined as the ratio the number of the...
متن کاملSimulations of antihydrogen formation
The results of simulations of antihydrogen formation in a Penning trap are reported. The antihydrogen atoms are formed by three-body capture. We find that the arrested nature of the three-body capture in the trap greatly reduces the expected binding energy of the antihydrogen. Typically, the formed antihydrogen has larger velocity along the magnetic field than across the field and a binding ene...
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ژورنال
عنوان ژورنال: Hyperfine Interactions
سال: 1993
ISSN: 0304-3834,1572-9540
DOI: 10.1007/bf02316711