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BT-7 Triple-Axis Summer School Experiment

The 29th CHRNS School on Methods and Applications of Neutron Spectroscopy was held July 17th to July 21st, 2023.  


The 27th CHRNS School on Methods and Applications of Neutron Spectroscopy--2022

January 28 - February 11, 2022.   Virtual Only

BT-7 Triple-Axis Summer School Experiment--2019

The Dynamics Summer School was held July 22 through June 26, 2019.  The description of the experiment and data analysis that will be carried out for BT-7 spectrometer is:  Colossal Magnetoresistive Spin Dyanmics.  The introduction to the instrument is here

To analyze the spin wave data we will use the SpinW program, and will also provide information on other programs that can be used.

We have also put together some examples of the types of data that can be obtained on BT-7, with brief explanations.  Details can be obtained from the references.  BT-7 examples.

BT-7 Instrument Publication:  Double Focusing Thermal Triple Axis Spectrometer at the NCNR, J. W. Lynn, Y. Chen, S. Chang, Y. Zhao, S. Chi, W. Ratcliff, II, B. G. Ueland, and R. W. Erwin, Journal of Research of NIST 117, 61-79 (2012).

Link to Summer School webpage.

Return to BT-7 Instrument


Triple-Axis Information for previous Tutorials and Summer Schools from previous schools and tutorials

The tutorial for the triple axis instruments was held on February 16, 2010. 


Lectures:      TAS basics and Science Examples

                   Samples and Sample Environment

                   Data Analysis


The Dynamics Summer School was held June 22 through June 26, 2009.  Here is the experimental description for the thermal triple axis instrument.


Publications related to the tutorial and 2009 summer school:

    Spin and Lattice Structure of Single Crystal SrFe2As2Jun Zhao, W. Ratcliff-II, J. W. Lynn, G. F. Chen, J. L. Luo, N. L. Wang, Jiangping Hu, and Pengcheng Dai,  Phys. Rev. B 78, 140504(R) (2008).

    Magnetic Form Factor of SrFe2As2:  Neutron Diffraction Measurements, W. Ratcliff II, P. A. Kienzle, J. W. Lynn, S. Li, P. Dai, G. F. Chen and N. L. Wang, Phys. Rev. 81, 140502(R) (2010).

    Spin Dynamics of Strongly Doped La1-xSrxMnO3, L.Vasiliu-Doloc, J. W. Lynn, Y. M. Mukovskii, A. A. Arsenov, and D. A. Shulyatev, J. Appl. Phys. 83, 7342 (1998).

    Structure and Spin Dynamics of La0.85Sr0.15MnO3L. Vasiliu-Doloc, J. W. Lynn, A. H. Moudden, A. M. de Leon-Guevara, and A. Revcolevschi, Phys. Rev. 58, 14913 (1998).


Further Information:

                 Iron-based Superconductors      

                Colossal Magnetoresistive Oxides 


      Return to BT-7 main page


Created January 17, 2020, Updated December 5, 2023