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60439. For information about Argonne and its pioneering science and technology programs, see www.anl.gov. DOCUMENT AVAILABILITY Online Access: U.S. Department of Energy (DOE) reports produced after 1991 and a growing number of pre-1991 documents are available free via DOE's SciTech Connect

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five types of proposals are used at the Advanced Photon Source (APS): general user, partner or project user, collaborative access team (cAT) member, cAT staff, and APS staff. All beam time at the APS must be requested each cycle through the web-based beam Time request System. each beam-time request (bTr) must be associated with one of the proposals mentioned above. GENErAL USEr PrOPOSALS AND BTrSProposals are peer reviewed and scored by a general user Proposal review Panel, and time is allocated on the basis of scores and feasibility. A new bTr must be submitted each cycle; or each cycle, allocation is competitive. Proposals expire in two years or when the number of shifts recommended in the peer review has been utilized, whichever comes first. PArTNEr Or PrOjECT USEr PrOPOSALS AND BTrSProposals are peer reviewed by a general user Proposal review Panel and reviewed further by a subcommittee of the APS Scientific Advisory committee and by APS senior management. Although a new bTr must be submitted each cycle, a specific amount of beam time is guaranteed for up to three years. CAT mEmBEr PrOPOSALSProposals from cAT members are typically much shorter and are reviewed by processes developed by individual cATs. Allocation/scheduling is determined by the cAT management. CAT AND APS STAFF mEmBEr PrOPOSALS AND BTrSThese proposals are also very short and are reviewed through processes developed by either the cAT or the APS. each cAT/beamline determines how beam time is allocated/scheduled. collaborative access team and/or APS staff may submit general user proposals, in which case the rules for general user proposals and bTrs are followed. in addition to the above, the APS has developed an industrial measurement access mode (mAm) program to provide a way for industrial users to gain rapid access for one-time measurements to investigate specific problems. A mAm proposal expires after one visit.The APS user information page (https://www1.aps.anl.gov/users-information) provides access to comprehensive information for prospective and current APS users.