|Beamlines Call schedule (non-PX)|
|End period, Normal/Test/Pilot||2019/12/31||2020/06/30|
The overbooking factor (i.e., the ratio of requested shifts to available shifts) at each station at the MS beamline is typically 2 - 3. Shortly after the submission deadlines (see above), the proposals are reviewed confidentially by an independent committee (Proposal Review Committee - PRC). After review, notification of success or failure is automatically sent to the main proposer by the DUO system. The successful proposals are then scheduled. Scheduling is an iterative procedure carried out by the beamline scientists [Phil Willmott (beamline manager and surface diffraction), Nicola Casati (powder diffraction), and Antonio Cervellino (powder diffraction), see Staff]. Every effort is made to accommodate the wishes of the users regarding the convenience of the allocated shift dates. It is therefore very important that the proposers fill out that part of the proposal in the DUO requesting information about preferred and inconvenient dates, as this considerably facilitates scheduling.
Long-term proposals extend over three scheduling periods. Justification for submitting a long-term proposal should be compelling. In general, proposals for experiments that are considered to be "high-risk" are unlikely to obtain long-term status until their feasibility has been proven. Even then, it should be apparent to the PRC, such as through publications in high-profile journals, that long-term status is justified. Scheduling of the machine and beamlines can be found at the SLS Operation Calendar.
Preparing before beamtime
It is recommended that the proposer contact the relevant beamline scientist (see Staff) to obtain any information required for preparing his/her experiment prior to the beamtime. He/she should first carefully check this website to see what is available at his/her endstation of interest. In addition, requests for dosimeters can be obtained by the DUO, while information about accommodation at the guesthouse and nearby hotels can be obtained here.
It is important that the forthcoming user has checked with the beamline scientist the following considerations:
- Desired photon energy?
- Does the user require polychromatic light (pink beam)?
- Which mode of diffractometer operation (SD: vertical or horizontal)?
- What sample environments are needed (temperature, pressure, gases, etc)?
- Transmission of the sample at the desired photon energy?
- Sample mounting possibilities and constraints?
- Angular or spatial resolution?
Importing experimental equipment
|Morning Shift||07:00 - 15:00|
|Evening Shift||15:00 - 23:00|
|Night Shift||23:00 - 07:00|