Argonne pulsed neutron source program
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.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6442514
- Report Number(s):
- CONF-780873-1; TRN: 79-004180
- Resource Relation:
- Conference: Conference on diffraction profile analysis and open meeting of the commission on neutron diffraction, Cracow, Poland, 14 Aug 1978
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NEUTRON SOURCES
PULSE TECHNIQUES
SYNCHROTRONS
ACCELERATOR FACILITIES
ION SOURCES
NEUTRON REACTIONS
PERFORMANCE
SPALLATION
TARGETS
THERMAL NEUTRONS
ACCELERATORS
BARYON REACTIONS
BARYONS
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
FERMIONS
HADRON REACTIONS
HADRONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
PARTICLE SOURCES
RADIATION SOURCES
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