[en] A magnetic electron spectrometer for tagged photon experiments at the accelerator system MAX has been designed and constructed. A small magnet of the inclined plane pole faces type with opening angle +-8 degree was choosen resulting in a time difference between different electron trajectories of less than 1ns. The focal properties of the spectrometer were investigated by ray-tracings showing that for an angular acceptance of /theta(sub)V/<=4 degree and /theta(sub)H/<=8 degree the astigmatic and aberrational effects will contribute less than 10% to the energy resolution of the focal plane detector array. (author)

[en] It is generally recognized that at small wind energy penetration levels, the capacity credit of many widely dispersed wind turbines is about equal to their average power output. In systems with few wind turbines, however, wind power fluctuations are not averaging each other out, and the capacity credit must be reduced. A methodology for estimating the capacity credit taking into consideration the wind power fluctuations is described. The methodology utilizes the commonly applied loss of load expectation index for estimating the capacity credit. Calculations are made and presented for a number of power system configurations and wind power penetration levels. It is concluded that the described methodology gives a consistent approach for determining the capacity credit for small and large systems with a few or many dispersed wind turbines. (Author)

[en] We have measured the proton recoil polarization in the ⁴He(polarized-e, e-prime, p)³H reaction at Q² = 0.5, 1.0, 1.6, and 2.6 (GeV/c)². The measured ratio of polarization transfer coefficients differs from a fully relativistic calculation, favoring the inclusion of a predicted medium modification of the proton form factors based on a quark-meson coupling model. In contrast, the measured induced polarizations agree reasonably well with the fully relativistic calculation indicating that the treatment of final-state interactions is under control

[en] We have measured the spin structure functions g₁ and g₂ of ³He in a double-spin experiment by inclusively scattering polarized electrons at energies ranging from 0.862 to 5.07 GeV off a polarized ³He target at a 15.5^o scattering angle. Excitation energies covered the resonance and the onset of the deep inelastic regions. We have determined for the first time the Q² evolution of Γ₁(Q²)=/int₀¹ g₁(x,Q²) dx, Γ₂(Q²)=/int₀¹ g₂(x,Q²) dx and d₂ (Q²) = /int₀¹ x ²[2g₁(x,Q²) + 3g₂(x,Q²)] dx for the neutron in the range 0.1 GeV² /leq Q² /leq 0.9 GeV² with good precision. Γ₁(Q²) displays a smooth variation from high to low Q². The Burkhardt-Cottingham sum rule holds within uncertainties and d₂ is non-zero over the measured range