Simulation studies of the behavior of positrons in a microtrap with long aspect ratio

@article{Narimannezhad2012SimulationSO,
  title={Simulation studies of the behavior of positrons in a microtrap with long aspect ratio},
  author={Alireza Narimannezhad and C J Baker and Marc H. Weber and Joshah Jennings and Kelvin G. Lynn},
  journal={The European Physical Journal D},
  year={2012},
  volume={68},
  pages={1-19}
}
The storage capacity of positrons in micro-Penning-Malmberg traps with large length to radius aspect ratios and radii of tens of microns was explored. Simulation studies were conducted with the WARP code and Charged Particle Optics program. A new design of the Penning-Malmberg trap consisting of an array of microtraps with substantially lower end electrode potential than conventional traps was considered. Simulations demonstrated each microtrap with 50 μm radius immersed in a 7T uniform… 
Fabrication of High Aspect Ratio Micro-Penning-Malmberg Gold Plated Silicon Trap Arrays
Acquiring a portable high density charged particles trap might consist of an array of micro-Penning-Malmberg traps (microtraps) with substantially lower end barriers potential than conventional
Microfabrication of high aspect ratio microtube arrays to store high density charged particles
TLDR
The fabrication of large length to radius aspect ratio (1000:1) microtrap arrays involved advanced techniques including photolithography, deep reactive ion etching (DRIE) of silicon wafers to achieve through-vias, gold sputtering of the wafer surfaces and inside the vias, and thermal compression bonding.
Study of Conduction Cooling Effects in Long Aspect Ratio Penning-Malmberg Micro-Traps
A first order perturbation with respect to velocity has been employed to find the frictional damping force imposed on a single moving charge due to a perturbative electric field, inside a long
Magnetic Shield Approach Toward Non-adiabatic Low to High Field Positron Beam Transition for Microtraps
This simulation study sheds light on effectiveness of a magnetic shield on non-adiabatic transport of a positron beam from 3700G to 100G where we were able to maximize the low to high field
Arrays of micro Penning-Malmberg traps: AN approach to fabricate very high aspect ratios
This paper reports on the progress of fabrication of very high aspect ratio (1000:1) micro-Penning-Malmberg trap arrays designed to store antimatter. The structure consists of thousands of 100μm
Pushing the Limits of Bonded Multi-Wafer Stack Heights While Maintaining High Precision Alignment
The last decade in advanced microelectronics has shown great interest in 3-D architectures, which was paved by multi-wafer alignment technologies. However, many limitations remain in the fabrication
Magnetic plasma expulsion
TLDR
One scheme for what is referred to as magnetic plasma expulsion, which would prevent the plasma from entering a given region is presented, which may also make alternative approaches for magnetic plasma confinement possible.
Abstract—Fabrication of a portable high-density charged particle trap with an array of micro-Penning-Malmberg traps
  • 2014

References

SHOWING 1-10 OF 42 REFERENCES
Fabrication of High Aspect Ratio Micro-Penning-Malmberg Gold Plated Silicon Trap Arrays
Acquiring a portable high density charged particles trap might consist of an array of micro-Penning-Malmberg traps (microtraps) with substantially lower end barriers potential than conventional
Plasma manipulation techniques for positron storage in a multicell trap
New plasma manipulation techniques are described that are central to the development of a multicell Penning trap designed to increase positron storage by orders of magnitude (e.g., to particle
Feasibility of cooling positrons via conduction in conductive micro-tubes
A first order perturbation with respect to velocity has been employed to find the frictional damping force imposed on a single moving charge inside a conductive cylindrical micro-tube. The tensorial
Energy spectra of tailored particle beams from trapped single-component plasmas
A nondestructive technique was developed recently to create beams of electrons (or positrons) with small transverse spatial extent and high brightness from single-component plasmas confined in a
Confinement of test particles in a Malmberg–Penning trap with a biased axial wire
A non-neutral plasma trap has been constructed in which the radial electric field of a non-neutral plasma column is simulated by a biased wire stretched along the axis of the device. The confinement
Practical limits on positron accumulation and the creation of electron-positron plasmas
The tasks of accumulating large numbers of positrons, creating high-density positron plasmas, and confining electron-positron plasmas present a number of technical challenges. Some practical
Manipulation of the magnetron orbit of a positron cloud in a Penning trap
We describe a simple and versatile method to manipulate the amplitude of the magnetron orbit of ions stored in a Penning trap, applied here to a cloud of low energy positrons. By applying a pulsed
Confinement and manipulation of non-neutral plasmas using rotating wall electric fields
A “rotating wall” perturbation technique enables confinement of up to 3×109 electrons or 109 ions in Penning–Malmberg traps for periods of weeks. These rotating wall electric fields transfer torque
Microfabrication of a high-density, non-neutral antimatter trap
A unique approach for the fabrication of long-aspect ratio microtubes is presented for an antimatter trap. Conventionally, non-neutral antimatter is stored using a Penning-Malmberg trap, a single
...
...