The Manuel Lujan, Jr. Neutron Scattering Center (LANSCE) experiment reports 1992 run cycle. Progress report

Technical Report · Wed Sep 01 00:00:00 EDT 1993

DOI:https://doi.org/10.2172/10191421· OSTI ID:10191421

DiStravolo, M A ^[1]

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1. comp.

This year was the fifth in which LANSCE ran a formal user program. A call for proposals was issued before the scheduled run cycles, and experiment proposals were submitted by scientists from universities, industry, and other research facilities around the world. An external program advisory committee, which LANSCE shares with the Intense Pulsed Neutron Source (IPNS), Argonne National Laboratory, examined the proposals and made recommendations. At LANSCE, neutrons are produced by spallation when a pulsed, 800-MeV proton beam impinges on a tungsten target. The proton pulses are provided by the Clinton P. Anderson Meson Physics Facility (LAMPF) accelerator and an associated Proton Storage Ring (PSR), which can alter the intensity, time structure, and repetition rate of the pulses. The LAMPF protons of Line D are shared between the LANSCE target and the Weapons Neutron Research (WNR) facility, which results in LANSCE spectrometers being available to external users for unclassified research about 80% of each annual LAMPF run cycle. Measurements of interest to the Los Alamos National Laboratory may also be performed and may occupy up to an additional 20% of the available beam time. These experiments are reviewed by an internal program advisory committee. One hundred sixty-seven proposals were submitted for unclassified research and twelve proposals for research of a programmatic interest to the Laboratory; six experiments in support of the LANSCE research program were accomplished during the discretionary periods. Oversubscription for instrument beam time by a factor of three was evident with 839 total days requested and only 371 available for allocation.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10191421
• Report Number(s): LA-12647-PR; ON: DE94001885; TRN: 93:003924
• Resource Relation: Other Information: PBD: Sep 1993
• Country of Publication: United States
• Language: English

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SUPERCONDUCTIVITY AND SUPERFLUIDITY
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NEUTRON SOURCE FACILITIES
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PROGRESS REPORT
NEUTRONS
SCATTERING
NEUTRON DIFFRACTOMETERS
PULSED NEUTRON TECHNIQUES
SOLID STATE PHYSICS
CRYSTAL STRUCTURE
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NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
INTERACTIONS BETWEEN BEAMS AND CONDENSED MATTER
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