Most users are expected to come for in person, on site, experiments to USAXS instrument. Most users come through General User Proposal system for regular on-site user access.  In this case user submits General User proposal, proposal is reviewed, graded and based on grade is allocated beamtime. Beamline staff will schedule user experiment about month before start of cycle (e.g., early January for Feb-Apr cycle). User needs to do all required training and submit Experiment Safety Assessment form (ESAF) at least two weeks before experiment. User, comes to APS and after on-site training by USAXS staff, users get full access the USAXS instrument - and when requested also Chemical Laboratory.  User can prepare their samples in the laboratory and operates instrument during their scheduled beamtime. Users themselves survey sample positions and collect data.  Staff is available for support as needed. 

Important scheduling rules:

1. Discuss safety issues with APS safety group well ahead - months ahead - we have some limitations on gasses and chemicals which you may not expect. DO NOT assume, verify ahead.
2. Arrive a day before your experiment, preferably before noon. Talk with staff, finish training, prepare samples. 
3. Your data collection starts at 9am (unless told otherwise). You are expected at the beamline by 8am or as staff instructs. 
4. Bring sufficient number of experimenters - at least TWO for more than 2 shifts and more than 3 for more than 6 shifts. 
5. Ship samples well ahead start of experiment, build in few days for delays in shipping and ANL on site transport/delivery.
6. Plan on shipping back yourself before you leave. There is paperwork. Or preferably, plan on disposing samples through waste system. There is paperwork. Nothing is fast! 
7. Plan to leave no earlier than late afternoon after your experiment ended. You need time to collect data, clean up, and have closeout discussions with staff.  No 9am flights !

Many sample types are accepted for on-site access experiments:

1. Solid samples (solid pieces or powders in pouches) mounted on sample plates. 
2. Liquid samples in NMR tubes or melting capillaries. 
3. Linkam heater experiments with Linkam 600 or Linkam 1500. 
4. Samples requiring chemical preparation work in the chem. lab. 
5. Radioactive, reactive, and any samples which can be approved through ESAF system. This often requires collaboration between APS safety group, USAXS staff, and users. Check for any limitations on this with staff before proposing. 
6. User equipment, as long as it is suitable for experiment, compatible with USAXS instrument, and can pass safety inspection. Talk with instrument staff before proposing such experiments. It can be tedious process. 

All experiments must be approved by APS safety group and beamline staff before they can run. Users must be approved APS users with all training up to date. All users must follow all APS/ANL regulations and staff instructions at all times.