Deadline: NOVEMBER 14, 2019
This call covers the cycles starting in February 2020 to August 2020. The emails notifying about the allocation of beam time will be sent around February 24, 2020.
- WEB PAGE PROPOSAL FORM
- PROPOSAL INSTRUCTIONS including TIPS ON PROPOSAL WRITING
- CHRNS PROPOSAL REVIEW AND BEAM TIME ALLOCATION
- OBTAINING SITE ACCESS
The NIST Center for Neutron Research (NCNR) offers neutron scattering and chemical analysis instruments to all qualified users. All proposals will be critically reviewed for scientific merit by experts external to the NCNR.
For this proposal round:
PROPOSAL SUBMISSION FORM
You must have an account on the new NCNR Information Management System (NCNR-IMS) to submit a proposal. Go to the login link on the upper left hand side of our home page. Login if you have an account, or create an account if you do not. Your email address is your user ID. It may be that you may already have an account of which you are unaware. You will know this if you try to create an account referring to an existing account with the same email address. We can send you your password in the latter case, or if you have forgotten your password. PLEASE do not create duplicate or multiple accounts.
NOTE! MAIL-IN SAMPLES FOR POWDER DIFFRACTION
We will accept proposals for experiments on the BT1 powder diffractometer on "mail-in" samples. That is, for approved proposals, samples may be mailed to NCNR staff, who will execute the data collection. Up to 25% of BT1 instrument time may be allocated to such proposals. NOTE THAT ONLY SUCH MAIL-IN PROPOSALS ARE ACCEPTED FOR BT1.
UPLOAD A PDF document of the description of your experiment on our proposal form.
The new feature allows you conveniently to include figures and equations. The uploaded material may be no larger than 1500 kb in file size, nor longer than 3 letter-size pages in length. The font size must be 12 point or larger.
TIPS ON PROPOSAL WRITING
The BTAC recommends that applicants read the tips listed on the proposal instructions page, with new specific suggestions from the SANS subcommittee of the BTAC.
EQUATIONS AND SPECIAL CHARACTERS -- NOTE CHANGE
In order to include special characters and equations, you must use the option of uploading the description of experiment as a pdf file. NOTE that the text box option no longer supports special characters, since no version of the proposal that reviewers will see is formatted in html.
PROPOSAL LENGTH LIMIT
The experiment description must be uploaded as a pdf file. The latter should include any figures and may not be longer than 3 letter-size pages, nor larger than 1500 kb in file size.
In the current call for proposals, the following instruments are offered to applicants.
- Instruments supported by the Center for High Resolution Neutron Scattering
- Other Instruments
- Thermal Neutron Triple-Axis with Polarized Beam Option (BT7)
- Disk-Chopper Spectrometer (DCS)
- MAGIK Reflectometer/Diffractometer
- Polarized Beam Reflectometer (PBR)
- Small Angle Neutron Scattering (SANS) - 30 m (NG7)
- Small Angle Neutron Scattering Instrument (SANS) - 30m (NGB)
- Neutron Imaging Facility (NIF)
- High Resolution Powder Diffractometer (BT1)
* The new vSANS instrument covers an extended Q-range compared to our 30 m SANS machines. Unlike our other SANS instruments, vSANS has 3 detectors two of which each have about 2.5 times the area of our old detectors allowing a wider Q-range in a single measurement. There are also 3 options for wavelength spread: 1% (λ = 0.475 nm), 13% (variable λ using a velocity selector), and 30% (λ ≈ 0.5 nm). The high-resolution detector which covers the low Q range (down to 0.0003 Å-1) has a higher background than would be ideal. Despite this, we have obtained publishable data on several systems including on samples in the rheometer. Please check with a vSANS instrument scientist to see if your system is a good candidate.
If you would like more detailed information about the NCNR instruments than is given on these pages, please contact the appropriate instrument scientist.