Jump to: home | search |phonebook | banner navigation | site navigation | main content| footer navigation
Lujan Neutron Scattering Center at LANSCE

spacer

For Lujan Users

The User Program at the Lujan Center will resume 9th January, 2013 and continue to 2nd March, 2013 on the following instruments; NPDF, SMARTS, SPEAR, LQD, Asterix, and PCS.   We expect to resume a full User Program (including HIPPO, FDS and HIPD) in the summer of 2013.  All experiments that were recently postponed will be rescheduled in 2013.  Priority for January through March operation will be determined by the experimental review committee (MPAC) score and by constraints of our interim resumption plan.

For the January through March run cycle the Lujan Center will operate using conservative procedures that control for the vulnerabilities that came to light as a result of the recent contamination event. Our goal is to provide the best service that we can during an interim period of operations interim rules as we continue to refine the ergonomics to ensure safe and secure operations. We ask you for your continued support in this critical interim phase of operation.

We would like to thank the DOE, NNSA, LANL, NSSA and all the users who helped us during the closure and for the contributions that they have made that lead to the resumption of our user activities.

We are very much looking forward to hosting Users in 2013.   We wish you a happy and safe holiday season.
 
Many Thanks,
The Lujan Center


spacer

Emergent magnetism at LaAlO3/SrTiO3 interfaces: Fact or Fiction?

 

spacer

In situ neutron diffraction study of CO clathrate hydrate

 

spacer

Local iron displacements and magnetoelastic coupling in a spin-ladder compound

 

spacer

Neutron Reflectometry (NR) at Lujan Center Helps To Understand the Performance of Radiation-Resistant Materials

The Lujan Neutron Scattering Center at Los Alamos National Laboratory is a national user facility funded by Basic Energy Sciences of the Department of Energy. Neutron scattering instruments are available to qualified scientists worldwide with time allocated based on a proposal system. There are two proposal deadlines each year.

The Lujan Center instruments operate in time of flight mode receiving neutrons from a tungsten spallation target and the LANSCE proton accelerator, which operates at an energy of 800 MeV with typical beam currents of 100 – 125 microamps. At a pulse rate of 20 Hz, the instruments view moderators optimized for each specific beamline. The facility operates for a total of 3,000 hours per year.

User research at the Lujan Center is focused in four science thrust areas. Each has a contact person who is available to discuss proposed experiments and to provide advice on the appropriate instrument and instrument scientist, available sample environments, and other details for planned experiments. New users especially are urged to contact the appropriate instrument scientist before submitting a proposal.


The neutron scattering instruments are augmented by a fully equipped chemical preparation laboratory, clean room, and various analytical tools including an x-ray lab.

A variety of sample environment equipment  is available including low temperature (down 15-20 mK), high temperatue (> 1000 C), high magnetic fields, and fluid and anvil cell pressure capabilities.

The Lujan Center users and internal scientific staff annually publish 125 – 150 articles in peer reviewed publications, many of which are in high profile journals. The list of 2010 papers is available.

Publication Notice: When a paper is submitted for publication that involves research at the Lujan Center please include the statement:
"This research was performed on the (name) instrument at the Lujan Center at Los Alamos National Laboratory supported by DOE-Basic Energy Sciences under FWP #2012LANLE389."

We will also appreciate your sending a PDF copy of all current published papers involving the Lujan Center to the respective instrument scientist.


Lujan Science Thrust Areas

Primary Instruments, and Contacts:

 

Surfaces and Interfaces

Rex Hjelm - Principal Contact

Neutron reflectivity and small angle scattering probes of interfaces, surfaces, defects, and their effects on material properties.

Primary Instruments:

SPEAR

Polymers | Liquids | Reflectometer

Jarek Majewski
Instrument Scientist

Asterix

Polarized Beam Reflectometer

Mike Fitzsimmons
Instrument Scientist

LQD

Small Angle Scattering Dffractometer

Rex Hjelm
Instrument Scientist

Local Structure, Magnetism, and Nanomaterials

Kate Page - Principal Contact

Local atomic arrangements versus average structure in bulk and nanomaterials; scattering insight into magnetic spin structures and magnetic moments.

Primary Instruments:

NPDF

Direct Fourier transform of scattering data, high-resolution crytallographic studies.

Kate Page | Anna Llobet
Instrument Scientists

 

 

Materials in Extreme Environments and Geoscience

Don Brown - Principal Contact

In-situ deformation studies, residual and induced stress in materials, phase transformations, texture, and high pressure experiments.

Primary Instruments:

SMARTS

Engineering Diffraction

Don Brown | Bjorn Clausen
Instrument Scientists

HIPPO

Texture, diffraction, high pressure studies

Sven Vogel
Instrument Scientist
 

Chemical Spectroscopy and Protein Structures

Luke Daemen - Principal Contact

Energy materials, H compounds, vibrational spectra, densities of state, macromolecular structures, catalytic mechanisms, structural enzymology

Primary Instruments:

FDS

Filter Difference Spectrometer

Luke Daemen | Monika Hartl
Instrument Scientists

PCS

Macromolecular structures

Zoe Fisher | Andrey Kovalevsky
Instrument Scientists
 

 

About Us | Contact Us | Jobs | Library | Maps | Museum | Emergencies | Inside LANL | Inside Phone | Site Feedback

Operated by Los Alamos National Security, LLC for the U.S. Department of Energy's NNSA © Copyright 2010-11 LANS, LLC All rights reserved | Terms of Use | Privacy Policy

gipoco.com is neither affiliated with the authors of this page nor responsible for its contents. This is a safe-cache copy of the original web site.