Design of the WNR proton storage ring lattice. [Weapons Neutron Research (WNR) Facility]

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7213133

Cooper, R K; Lawrence, G P

The Weapons Neutron Research Facility, now approaching operational status, is a pulsed neutron time-of-flight facility utilizing bursts of 800 MeV protons from the LAMPF linac. The protons strike a heavy metal target and produce a broad energy spectrum of neutrons via spallation reactions. Ideally the width of the proton pulse should approach a delta function in order to achieve good neutron energy resolution. Practically, the shortest pulse that can be employed in the facility is that produced by a single LAMPF micropulse, which, at design current, contains approximately 5 x 10/sup 8/ protons. With the addition of a storage ring capable of accumulating many micropulses, this intensity can be increased, as can the repetition rate. Moreover, by storing an unbunched beam, a low repetition rate, very intense proton burst can be generated. This latter mode of usage allows neutron time-of-flight studies using large neutron targets, for which pulse lengths of the order of several hundred nanoseconds are suitable. The primary goals of the ring are reported: (i) to increase the intensity of the burst to 10/sup 11/ protons while retaining a short pulse length; (ii) to increase the repetition rate of the bursts by at least a factor of six; and (iii) to store as many particles as possible, uniformly distributed around the ring.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7213133
• Report Number(s): LA-UR-77-566; CONF-770313-6
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400* -- Particle Accelerators-- Storage Rings
BEAM BUNCHING
BEAM DYNAMICS
BEAM INJECTION
BEAMS
DESIGN
NEUTRON SOURCES
NUCLEON BEAMS
OPERATION
PARTICLE BEAMS
PARTICLE SOURCES
PROTON BEAMS
RADIATION SOURCES
RF SYSTEMS
STORAGE RINGS