The ZING-P' prototype pulsed spallation neutron source based on the 500 MeV Booster II proton synchrotron at Argonne is currently operating at 15 hz and 8 x 10/sup 12/ neutrons/pulse. Four neutron scattering instruments, two elastic and two inelastic, have been erected. In operation are 1% and 0.3% ..delta..d/d resolution powder diffractometers, a crystal analyzer spectrometer sensitive to excitations with E < 0.3 eV and a chopper spectrometer sensitive to E < 1 eV. Pulsed beam single crystal and a small-angle scattering instrument and a neutron bottle experiment are in construction stage. The peak thermal neutron flux at the beam …
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The ZING-P' prototype pulsed spallation neutron source based on the 500 MeV Booster II proton synchrotron at Argonne is currently operating at 15 hz and 8 x 10/sup 12/ neutrons/pulse. Four neutron scattering instruments, two elastic and two inelastic, have been erected. In operation are 1% and 0.3% ..delta..d/d resolution powder diffractometers, a crystal analyzer spectrometer sensitive to excitations with E < 0.3 eV and a chopper spectrometer sensitive to E < 1 eV. Pulsed beam single crystal and a small-angle scattering instrument and a neutron bottle experiment are in construction stage. The peak thermal neutron flux at the beam sources is 10/sup 14/n/cm/sup 2/-sec. IPNS-I, an advanced pulsed source also based on Booster II, is scheduled for 1979 construction and is to begin operation in 1981. Utilizing a U/sup 238/ target it will produce 10/sup 14/ neutrons / pulse, operate at 45 hz and yield a peak thermal flux of 8 x 10/sup 14/ n/cm/sup 2/-sec and an epithermal flux of 2 x 10/sup 15/ n/cm/sup 2/-sec eV at 1 eV. Twelve advanced time-of-flight neutron scattering instruments are being designed for installation at IPNS-I. Accelerator design studies and other planning for IPNS-II, a 10/sup 16/ flux source, are continuing. The design of the single crystal time-of-flight neutron diffractometer is based on the Laue technique utilizing a broad thermal neutron spectrum (0.75 to 5.0 A). It will employ a /sup 3/He filled, multiwire, position-sensitive, area detector of the Borkowski-Kopp type. The detector will be interfaced to a large computer through a 1 megabyte fast storage buffer memory. Data collection will involve simultaneous measurement of 10/sup 2/ - 10/sup 3/ reflections with stationary crystal and detector.
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Carpenter, J. M.; Crawford, R. K.; Peterson, S. W.; Mueller, M. H.; Jorgensen, J. D. & Reis, A. H., Jr.Argonne pulsed neutron source program,
article,
January 1, 1978;
Illinois.
(https://digital.library.unt.edu/ark:/67531/metadc1208661/:
accessed April 26, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
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