Long-term evolution of broken wakefields in finite-radius plasmas.

The Evolution of Long-term Care Programs; Comment on “Financing Long-term Care: Lessons From Japan”

The need for long-term care (LTC) represents a “new social risk,” one that overlaps with and complements systems of care that pre-date such programs, complicating LTC program design. This commentary expands on Ikegami’s discussion of how these structural factors must be accommodated, as well as historical and cultural factors that influence public expectations of such a...

Attosecond electron sheets and attosecond light pulses from relativistic laser wakefields in underdense plasmas

A method for producing dense attosecond electron sheets (tens nanometers thick corresponding to attosecond duration) and single intense attosecond light pulse is reported based on relativistic laser wakefields in underdense plasmas. By making use of gas targets this method allows for high repetition rates required for applications.

Physics of the Awake Project

We briefly describe the physics goals of the AWAKE experiment proposed at CERN. AWAKE is a plasma wakefield acceleration (PWFA) experiment using the SPS proton bunch as a PWFA driver. These goals include the study of the self-modulation instability of the proton bunch propagating along the plasma, the sampling of the accelerating wakefields by witness electrons, the acceleration of an electron ...

Measurement of long-term denudation rates in carbonate landscapes using in situ-produced 36Cl cosmogenic nuclide

ecent progresses have been made in the quantification of denudation of eroding landscapes and its links with topography. Despite these advances, data is still sparse in carbonate terrain, which covers a significant part of the Earth’s surface. We can now measure in situ-produced cosmogenic nuclides concentrations in various near-surface materials, allowing accurate quantification of the rates o...

Quasilinear diffusion coefficients in a finite Larmor radius expansion for ion cyclotron heated plasmas