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A National Network Of Accelerators Dedicated To Material Irradiation (EMIR)
Hosting Legal Entity
Lujan Neutron Scattering Center at Los Alamos Neutron Science Center (LANSCE) of Los Alamos National Laboratory
Coordinating Country
United States
RI Keywords
powder, crystalline, diffractometer, atomic structure, magnetic structure
Location
Lujan Center, Group Office TA-53, Bldg. 622, Rm. 220, LANSCE, Los Alamos National Lab, Los Alamos, NM 87545 USA
Description
High-Intensity Powder Diffractometer (HIPD) is a high intensity and medium resolution powder diffractometer designed for studies on the atomic and magnetic structure of crystalline and non-crystalline powders and local structure analysis (PDF) studies.

HIPD Instrument Scientist:
Anna Llobet
allobet@lanl.gov, (505) 665-1367
Application Area
HIPD is specially suited for magnetic diffraction, magnetic and crystalline phase transitions, local structure studies, small crystalline samples, neutron absorbing materials, studies of amorphous solids and liquids. The high data rates of HIPD also make it ideal for time-resolved and pressure studies.
Specifications
High counting rates are achieved thanks to the proximity to the neutron source (primary flight path = 9 m). The beam size at the sample position is 1 cm wide and 5 cm high and collimation may be added to support small sample volumes and specialized ancillary equipment. HIPD detectors are located at ± 153°, ± 90°, ± 40° and ± 14°, each covering ± 5°, which allows over 2 decades of momentum transfer (0.2 - 60 A-1). << Specifications >> Wavelength Range: 0.20 ? 10.0 ? Beam width: 0.3 ? 1.0 cm, variable Beam height: 0.3 ? 5.0 cm, variable Q range: 0.2 ? 60 ?-1 d-spacing range (approx) and resolution: ± 14° / 3.54 ? 38.0 ? / 3% ± 40° / 1.13 ? 22.28 ? / 1% ± 90° / 0.56 ? 5.57 ? / 0.5% ± 153° / 0.40 ? 4.0 ? / 0.3% Moderator: Water at 283 K Sample environments: 4 -750K, closed cycle refrigerator with He exchange gas, heating stick high pressure cell Sample size: 0.05 ? 4 cm3 Experiment Duration: Less than 5 minutes to 1 day