The Manuel Lujan Jr. Neutron Scattering Center

Conference · Sat Jan 01 00:00:00 EST 1994

DOI:https://doi.org/10.1557/PROC-376-13· OSTI ID:6712746

Goldstone, J A ^[1]

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1. Los Alamos National Lab., NM (United States). Manuel Lujan Jr. Neutron Scattering Center

High in the northcentral mountains of Los Alamos, New Mexico, is the Manuel Lujan Jr. Neutron Scattering Center (LANSCE), a pulsed-spallation neutron source located at Los Alamos National Laboratory. 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 a linear accelerator and an associated Proton Storage Ring (PSR), which alters the intensity, time structure, and repetition rate of the pulses. In October 1986, LANSCE was designated a national user facility, with a formal user program initiated in 1988. In July 1989, the LANSCE facility was dedicated as the Manuel Lujan Jr. Neutron Scattering Center in honor of the long-term Congressman from New Mexico. At present, the PSR operates with a proton pulse width of 0.27 [mu]s at 20 Hz and 80 [mu]A, attaining the highest peak neutron flux in the world and close to its goal of 100 [mu]A, which would yield a peak thermal neutron flux of 10[sup 16] n/cm[sup [minus]2]s[sup [minus]1]. This paper discusses the target/moderator/reflector shield system, the LANSCE instruments, the facility improvement projects, and user programs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6712746
• Report Number(s): LA-UR-94-4040; CONF-941144-8; ON: DE95003678
• Resource Relation: Journal Volume: 376; Conference: 1994 fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 28 Nov - 2 Dec 1994
• Country of Publication: United States
• Language: English

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