HELIOS: A high intensity chopper spectrometer at LANSCE
Conference
·
OSTI ID:334359
- Oak Ridge National Lab., TN (United States)
- Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Physics and Astronomy
- California Inst. of Tech., Pasadena, CA (United States). Dept. of Materials Science; and others
A proposal to construct a high intensity chopper spectrometer at LANSCE as part of the SPSS upgrade project is discussed. HELIOS will be optimized for science requiring high sensitivity neutron spectroscopy. This includes studies of phonon density of states in small polycrystalline samples, magnetic excitations in quantum magnets and highly correlated electron systems, as well as parametric studies (as a function of pressure, temperature, or magnetic field) of S(Q,{omega}). By employing a compact design together with the use of supermirror guide in the incident flight path the neutron flux at HELIOS will be significantly higher than any other comparable instrument now operating.
- Research Organization:
- Los Alamos National Lab., NM (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 334359
- Report Number(s):
- LA-UR--98-3556; CONF-980680--; ON: DE99002396
- Country of Publication:
- United States
- Language:
- English
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