Proposal Calls

2021-B Proposals for Remote Access Experiments

The General User Proposal Call 2021-B closed at Noon (EDT) on Wednesday, March 24. Award letters will be sent by May 21. Proposals awarded beam time will be scheduled to run July – December 2021. Due to experiment carryover, HFIR instruments are not available in this call with the following exceptions: CG-2 GP-SANS, CG-3 Bio-SANS, CG-4D IMAGINE, and HB-2B HIDRA.

For 2021-B, we solicited ONLY proposals that can be run with remote participation and for which samples will be available during the award period (no postponements due to sample unavailability will be allowed). See the list of participating instruments and conditions that can be supported below. Previously awarded proposals that cannot run in remote access mode will still be honored when the onsite GUP resumes. All awarded users should be aware that we anticipate more frequent schedule changes during this cycle than usual, to deal with unscheduled unavailability of staff or other support.

New: Option to request Remote Experiment with Remote Control of Instrument: Remote experiment capabilities are being implemented at SNS and HFIR which will enable users to conduct experiments and produce data through remote control of the instrument. This mode is distinct from our current mode of operation in which the instrument team runs the experiment with input and directions from the user. Proposals that are accepted to run through remote control of the instrument will require additional pre-experiment steps for users, including filling out sample container and loading information and watching training videos to learn about the instrument workspace and controls. Users interested in running a remote experiment will have expressed this interest when submitting a proposal to the 2021-B proposal call. A yes/no option has been added to IPTS on the instrument selection page which states, “I am interested in running my experiment through remote control of the instrument.” Final determination of proposals to be awarded remote experiment status will be made by ORNL staff, and users will be notified of this status in their proposal award letter.

 

SNS Instruments:

Beamline Experiment Conditions that CAN be supported Experiment Conditions that CANNOT be supported
BL-1A USANS Only standard cells without temperature control or Peltier cell with moderate temperature control. No other sample environments can be supported.  
BL-1B NOMAD Standard NOMAD sample environments (Shifter, cryostat, furnace). Number of manual sample changes per day is limited, contact the instrument team to discuss. Regular mail-in proposals will be supported. Experiments needing gas flow (utube), in situ battery capabilities, levitator experiments.
BL-2 BASIS Standard BASIS sample environment equipment: closed cycle refrigerators or furnaces. Discuss complex or time-sensitive sample preparation with the instrument team in advance. Non-standard BASIS sample environments including cryomagnets, orange cryostats, low temperature inserts, or pressure cells.
BL-3 SNAP A survey of a sample at pressure and room temperature, or a coarse scan over pressure and temperature ranges. Imaging at SNAP: room temperature radiography and wavelength-dependent computed tomography scans. Experiments that require frequent monitoring of experimental parameters: gas above 3 KBar, some DAC experiments requiring frequent gasket and pressure monitoring (fluorescence); experiments where the signal is expected to be weak or that require expert sample processing or alignment (e.g. single crystal measurements on DAC’s or Paris Edinburgh-Press).
BL-4A MAGREF Closed cycle refrigerators, electromagnet (-1.15T - + 1.15T), cryomagnet up to 5T, 1.5 – 850K. Polarization analysis using a mirror analyzer. Combination of various techniques (i.e. reflectometry, GISANS, WAD) should be discussed with the instrument team in advance. Experiments requiring frequent sample changes, extreme temperature ranges (requiring close monitoring of experiment), complex sample preparation, and customized sample environments. Experiments that involve complex setups requiring frequent monitoring by SNS staff. User provided equipment.
BL-4B LIQREF Solid samples deposited onto 50mm diameter, 5 mm thick substrates. Proposals calling for the use of fluid or electrochemical cells must be discussed with the instrument team in advance.  Experiments involving free liquid surfaces or vacuum environments will generally not be supported (users can contact the instrument team to determine exceptions). User supplied sample environment. 
BL-5 CNCS Closed cycle refrigerators, orange cryostats, 3He inserts, cryomagnets, furnaces. Single crystal samples should be aligned in advance; for questions related to crystal alignment, contact the instrument team. Experiments requiring the use of dilution refrigerator inserts and levitators. Discuss the use of pressure cells with the instrument team in advance.
BL-6 EQ-SANS Stable fully prepared samples that can be run with either banjo cells or ti-demountable cells between 5C and 130C.  
BL-7 VULCAN Required: contact the instrument team to discuss experiment before submitting. Use of the load frame may be requested but for safety reasons, the load frame must be remotely controlled by our staff, so acceptance of proposals may be limited by staff time availability. Frequent sample changes (i.e. many samples in one proposal), extreme temperature ranges (requiring close monitoring of experiment), complex sample preparation, and customized sample environments.
BL-9 CORELLI Closed cycle refrigerators, orange cryostats, 3He inserts, cryomagnets, furnaces.  Experiments requiring the use of dilution refrigerator inserts or high-pressure cell. Combination of various techniques should be discussed with the instrument team in advance.
BL-11A POWGEN Standard POWGEN sample environments (PAC, OC, JANIS, MICAS). Number of manualsample changes per day is limited, contact the instrument team. Regular mail-in proposals will be supported. Experiments using the AGES system
BL-11B MaNDi Experiments for which protein crystals can be shipped, or protein sample can be shipped to ORNL for crystal growth, or protein can be deuterated and crystals grown on site.  
BL-12 TOPAZ Experiments using the crygenic (5K - 300K) and ambient (90 K – 450 K) goniometers. User provided equipment; experiments that involve complex setups requiring frequent monitoring by SNS staff. 
BL-14B HYSPEC Closed cycle refrigerators, orange cryostats, 3He inserts, cryomagnets, furnaces. Single crystal samples should be aligned in advance; for questions related to crystal alignment, contact the instrument team. Experiments requiring the use of dilution refrigerator inserts. Discuss the use of pressure cells with the instrument team in advance.
BL-15 NSE Samples must be prepared at user's own institution and stable enough to be mailed to SNS.  
BL-16B VISION Standard VISION closed cycle refrigerator including basic gas loading involving small amounts of gas or liquid. Experiments using diamond anvil or clamp pressure cells. Experiments requiring use of user supplied equipment, high pressure gas cells, or furnaces. Experiments that involve complex setups requiring frequent monitoring by SNS staff..
BL-17 SEQUOIA Closed cycle refrigerators, orange cryostats, 3He inserts, cryomagnets, furnaces. Single crystal samples should be aligned in advance; for questions related to crystal alignment, contact the instrument team. Experiments requiring the use of dilution refrigerator inserts. Discuss the use of pressure cells with the instrument team in advance.
BL-18 ARCS Closed cycle refrigerators, orange cryostats, 3He inserts, cryomagnets, furnaces. Single crystal samples should be aligned in advance; for questions related to crystal alignment, contact the instrument team. Experiments requiring the use of dilution refrigerator inserts or levitators. Discuss the use of pressure cells with the instrument team in advance.

  HFIR Instruments:  

Beamline Experiment Conditions that CAN be supported Experiment Conditions that CANNOT be supported
CG-2 GP-SANS Stable and fully prepared samples that utilize standard sample environment (banjo cells, Ti-demountable cells, Cu-demountable cells) with moderate temperature control (Peltier, tumbler, standard changers), extended Q pressure cells with standard stock gasses. furnaces, magnets, rheometers, user supplied equipment
CG-3 Bio-SANS Samples that can be run in standard sample environments - banjo and rectangular cell sample changer, Peltier stage, Ti cell sample changer, tumbler. Pressure cell, user supplied equipment. 
CG-4D IMAGINE Experiments for which protein crystals can be shipped, or protein sample can be shipped to ORNL for crystal growth, or protein can be deuterated and crystals grown on site.  
HB-2B HIDRA Mapping experiments typical of HIDRA can be accommodated; acceptance of proposals may be limited due to staff time.