Abstract: An ion implantation system including an ion source for generating an ion beam, an end station for holding a substrate to be implanted by the ion beam, and a linear accelerator disposed between the ion source and the end station and adapted to accelerate the ion beam, the linear accelerator including at least one acceleration stage including a resonator and a resonator coil disposed within a resonator chamber, wherein the resonator coil is a tubular body having a plurality of coaxial layers, including an inner layer, a middle layer, and an outer layer, wherein the outer layer is formed of a dielectric material.

Abstract: A computer activity-based challenge may be posted by a computer system to a social network associated with a user of the computer system. A notification may be received from the social network by the computer system indicating acceptance of the challenge for each subscriber of the social network who accepts the challenge. A result obtained by each subscriber who accepted the challenge may be recorded by the computer system after receiving the result from the social network. In some implementations a value associated with the challenge may be updated using dynamic scoring.

Abstract: One aspect of the invention is a method for providing restricted access to confidential services without impacting the security of a network. The method includes using a gateway to isolate one or more components providing confidential services from one or more other portions of an enterprise network. A first communication directed to a selected one of the one or more components may be received at the gateway. A determination may be made as to whether the first communication is user traffic or management traffic. The first communication may then be authenticated. If the first communication is user traffic, the first communication is forwarded to a component providing the confidential services. If the first communication is management traffic, the first communication is encrypted and forwarded to a component providing the confidential services. Additionally, components of the sub-network may be monitored to identify malicious changes.

Abstract: A world may be partitioned into a set of regions and sub-regions by the computer game system in a hierarchical manner, wherein the regions and sub-regions are arranged according to a hierarchy, each sub-region being encompassed by a higher-level sub-region or region, and two or more highest-level sub-regions being encompassed by a region. A location of a user of the computer game system along with one or more statistics associated with the user may be assigned to a smallest sub-region created in the hierarchical manner. A rank of the user may then be determined within a region or sub-region encompassing the smallest sub-region to which the user's location was assigned, wherein the rank is determined using the one or more statistics associated with the user. One or more users may then be notified of the rank.

Abstract: Methods for establishing a location-based leaderboard by a computer game system are disclosed. The world may be partitioned into a set of regions and sub-regions by the computer game system using a hierarchical spatial data structure, wherein the regions and sub-regions are arranged according to a hierarchy, each sub-region being encompassed by a higher-level sub-region or region, and two or more highest-level sub-regions being encompassed by a region. A location of a user of the computer game system along with one or more statistics associated with the user may be assigned to a smallest sub-region created by the hierarchical spatial data structure. A rank of the user may then be determined within a region or sub-region encompassing the smallest sub-region to which the user's location was assigned, wherein the rank is determined using the one or more statistics associated with the user. One or more users may then be notified of the rank.

Abstract: A computer activity-based challenge may be posted by a computer system to a social network associated with a user of the computer system. A notification may be received from the social network by the computer system indicating acceptance of the challenge for each subscriber of the social network who accepts the challenge. A result obtained by each subscriber who accepted the challenge may be recorded by the computer system after receiving the result from the social network. In some implementations a value associated with the challenge may be updated using dynamic scoring.

Abstract: Method and system for tag-based grouping of online communities are disclosed. One or more tags associated with a user of a computer game system may be obtained by the computer system. One or more groups compatible with the user's one or more tags may be identified by the computer system. The user may then be prompted to join the one or more clans located by the computer game system.

Abstract: Methods for establishing a location-based leaderboard by a computer game system are disclosed. The world may be partitioned into a set of regions and sub-regions by the computer game system using a hierarchical spatial data structure, wherein the regions and sub-regions are arranged according to a hierarchy, each sub-region being encompassed by a higher-level sub-region or region, and two or more highest-level sub-regions being encompassed by a region. A location of a user of the computer game system along with one or more statistics associated with the user may be assigned to a smallest sub-region created by the hierarchical spatial data structure. A rank of the user may then be determined within a region or sub-region encompassing the smallest sub-region to which the user's location was assigned, wherein the rank is determined using the one or more statistics associated with the user. One or more users may then be notified of the rank.

Abstract: One aspect of the invention is a method for providing restricted access to confidential services without impacting the security of a network. The method includes using a gateway to isolate one or more components providing confidential services from one or more other portions of an enterprise network. A first communication directed to a selected one of the one or more components may be received at the gateway. A determination may be made as to whether the first communication is user traffic or management traffic. The first communication may then be authenticated. If the first communication is user traffic, the first communication is forwarded to a component providing the confidential services. If the first communication is management traffic, the first communication is encrypted and forwarded to a component providing the confidential services. Additionally, components of the sub-network may be monitored to identify malicious changes.