Laser ion source for isobaric heavy ion collider experiment

Squeezed Fermions at Relativistic Heavy Ion Collider

Large back-to-back correlations of observable fermion – anti-fermion pairs are predicted to appear, if the mass of the fermions is modified in a thermalized medium. The back-to-back correlations of protons and anti-protons are experimentally observable in ultra-relativistic heavy ion collisions, similarly to the Andreev reflection of electrons off the boundary of a superconductor. Surprisingly,...

The Relativistic Heavy Ion Collider Control System

The Relativistic Heavy Ion Collider control system has been used in the commissioning of the AGS to RHIC transfer line and in the first RHIC sextant test. Much of the controls infrastructure for networks and links has been installed throughout the collider. Almost all of the controls hardware modules needed for early RHIC operations have been designed and tested. Many of these VME modules are a...

Physics at the Relativistic Heavy Ion Collider

Laser-Based Heavy Ion Production

Laser ion source (LIS) already has about thirty years history, and has many variety of usages. Since 2000 we have focused on high brightness of induced laser plasma to provide intense highly charged ions efficiently. To take an advantage of the intrinsic density of the plasma, Direct Plasma Injection Scheme (DPIS) has been developed. The induced laser plasma has initial expanding velocity and c...

Laser Ablation Ion Source for Highly Charge-state Ion Beams*

The KEK Laser ablation ion source (KEK-LAIS) is under development in order to generate highly ionized metal and fully ionized carbon for future applications. Laser ablation experiments have been carried out by using NdYAG laser (0.75 J/pulse, 20 ns) at the KEK test bench. Basic parameters such as a charge-state spectrum and momentum spectrum of the plasma and extracted ion beam current have bee...