Jets from radio galaxies can have dramatic effects on the medium through which they propagate. We review observational evidence for jet-induced star formation in low ('FR-I') and high ('FR-II') luminosity radio galaxies, at low and high redshifts respectively. We then discuss numerical simulations which are aimed to explain a jet-induced starburst ('Minkowski's Object') in the nearby FR-I type radio galaxy NGC 541. We conclude that jets can induce star formation in moderately dense (10 cm{sup -3}), warm (10{sup 4} K) gas; that this may be more common in the dense environments of forming, active galaxies; and that this may provide a mechanism for 'positive' feedback from AGN in the galaxy formation process.

We study structural disorder produced in tetragonal KDP (KH{sub 2}PO{sub 4}) single crystals at room temperature by irradiation with MeV light ions. Results show that electronic energy loss plays a major role in the production of lattice defects in KDP. The effective diameters of ion tracks depend superlinearly on the electronic stopping power of energetic light ions. Structural lattice disorder is also accompanied by the formation of a network of cracks and blisters on the sample surface. Such irradiation-induced cracking and blistering typically evolves over extended periods of time (e.g., days) after bombardment, strongly affected by ion irradiation and sample storage conditions.

The authors present direct measurements of the spatial distribution of ionizing radiation and low energy neutrons (E{sub n} < 200 keV) inside the tracking volume of the collider detector at Fermilab (CDF). Using data from multiple exposures, the radiation field can be separated into components from beam losses and collisions and can be checked for consistency between the measurements. They compare the radiation measurements with an increase in the leakage currents of the CDF silicon detectors and find reasonable agreement.

The construction of the initial part of the J-PARC linac has been started at KEK for beam tests before moving to the JAERI Tokai campus, where J-PARC facility is finally to be constructed. The RFQ and MEBT (Medium Energy Beam Transport) has already been installed at KEK, and the beam test has been performed successfully. In this paper, the experimental results of the beam test are compared with simulation results with a 3D PIC (Particle-In-Cell) code, IMPACT.

The National Ignition Facility (NIF), operating at green (2{omega}) light, has the potential to drive ignition targets with significantly more energy than the 1.8 MJ it will produce with its baseline, blue (3{omega}) operations. This results in a greatly increased 'target design space', providing a number of exciting opportunities for fusion research. These include the prospect of ignition experiments with capsules absorbing energies in the vicinity of 1 MJ. This significant increase in capsule absorbed energy over the original designs at {approx}150 kJ could allow high-gain, high yield experiments on NIF. This paper reports the progress made exploring 2{omega} for NIF ignition, including potential 2{omega} laser performance, 2{omega} ignition target designs and 2{omega} Laser Plasma Interaction (LPI) studies.

This was a meeting between two large groups of researchers: astrophysicists and space physicists, on the one hand, and laboratory plasma physicists, on the other. The meeting has clearly demonstrated a growing mutual interest of these two groups: presenters of one group tried to make their talks understandable to another group, discussions were very lively, and a number of points for further joint effort have been identified. This was a timely meeting in view of the explosion of observational data from new space and ground based instruments. New phenomena have been observed and/or understood more clearly, including gamma ray burst sources, the Sunyaev-Zeldovich effect, the anisotropy of the cosmic microwave background, high magnetic field pulsars or magnetars, solar acoustic spectroscopy, ultra luminous star burst galaxies, and many others.

We report the first measurements of anisotropy in magnetic susceptibility, magnetization, and electrical resistivity using single crystals of GdTSb3 (T=Cr, V). GdTSb{sub 3} is a quasi-two dimensional system with orthorhombic crystal structure (space group Pbcm). Unlike the other light rare earth chromium antimonides (R = Ce-Nd, Sm), in which two magnetic transitions are observed, GdCrSb3 undergoes a single ferrimagnetic transition at T{sub C}=86 K, which is evident in both the magnetic susceptibility and electrical resistivity. Within the b-c plane, GdCrSb{sub 3} is found to have metallic behavior from 5 K to 300 K, but it is found to have insulating behavior (dp{sub a}/dT < 0) along the stacking axis. GdVSb3 is found to have a N{acute e}el transition at 5 K due to the localized Gd ions, but no ferromagnetic transition.