1. INTRODUCTION (Rev July 21, 1998)

1.1 About the Advanced Photon Source

The Advanced Photon Source (APS) at Argonne National Laboratory is a third-generation synchrotron light source optimized for using insertion devices as high-brilliance sources of hard x-rays.

The forefront capabilities of the APS will be available to qualified users, who may participate at the APS as either members of Collaborative Access Teams (CATs) or Independent Investigators (IIs).

A CAT is an entity organized to develop and operate one or more of the 35 available APS sectors. (Each sector consists of an insertion device beamline and an adjacent bending magnet beamline.) Each CAT will use its own funds to develop its sector(s), that is, to design, construct, and install the beamline components. A CAT must submit a scientific proposal, a conceptual design, a management plan, and construction and operations funding. Once these requirements have been met, the CAT and the APS sign a Memorandum of Understanding (MOU). [The process for the submission and review of proposals to form CATs, requirements for management plans, and requirements for funding letters are outlined in Guidelines and Forms for Proposals to Establish Collaborative Access Teams at the Advanced Photon Source (November 1990) and The Advanced Photon Source User Policies and Procedures (July 1993). These documents are available from the APS User Office.

Independent Investigators do not participate in beamline design and installation; their experiments are conducted on beamlines constructed by CATs. However, they may wish to bring experimental equipment and/or optics of their own to be used on a beamline, as permitted by the host CAT. Equipment brought by the Independent Investigator must conform to all applicable safety regulations of the APS and the CAT and incorporate measures for the protection of the storage-ring vacuum and beamline components.

1.2 About this Manual

This manual is designed to be used as a reference tool for CATs that have received scientific proposal approval. Written as a guide for the design and construction of beamlines and experiment stations at the APS, it contains three major sections. Section I describes the structure of a beamline, defines the responsibilities associated with beamline design and construction, and describes the review process from conceptual design to operational readiness. Section II includes copies of beamline-related policies and design report guidlines, and Section III contains technical updates. As new guidelines, policies, and updates are developed and issued, they can be inserted in the appropriate sections.