Possibilities for a neutron-proton bremsstrahlung experiment at WNR/LAMPF (Los Alamos Meson Physics Facility)
The high energy and high intensity of the continuous energy (white) neutron source at the WNR target area of the Los alamos Meson Physics Facility (LAMPF) may make possible a direct measurement of the neutron-proton bremsstrahlung (NPB) cross section. Several recent papers have discussed the operation of the WNR white neutron source in detail so we will just include a short description of the relevant properties of the source in this article. Next we will describe one possible method of measuring the NPB cross section which is based on two calorimetric detectors that measure the energies of the scattered neutrons and the recoil protons. There are several advantages in using a white neutron source for this type of measurement. First, a wide range of incident neutron energies may be covered. In the case of the WNR, the energy range is from below 50 MeV to over 400 MeV which is above the pion production threshold. Second, all incident neutron energies are measured simultaneously. The greatly reduces the systematic errors associated with sequential measurements at different beam energies when measuring the energy dependence of the NPB cross section. Third, the neutron beam is shared amongst several experimenters at WNR. This greatly reduces the competition for beam time, so longer runs are often possible compared to facilities that require the dedicated use of the accelerator. In the past, typical experiments have run for several months. 6 refs., 5 figs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 6995902
- Report Number(s):
- LA-UR-90-1242; CONF-900179-2; ON: DE90010571
- Resource Relation:
- Conference: Los Alamos National Laboratory (LANL) workshop on n-p Bremsstrahlung, Los Alamos, NM (USA), 25-26 Jan 1990
- Country of Publication:
- United States
- Language:
- English
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PROTON-NEUTRON INTERACTIONS
BREMSSTRAHLUNG
ENERGY DEPENDENCE
NEUTRON BEAMS
NEUTRON SOURCES
PROTON BEAMS
SPALLATION
TIME-OF-FLIGHT METHOD
BARYON-BARYON INTERACTIONS
BEAMS
ELECTROMAGNETIC RADIATION
HADRON-HADRON INTERACTIONS
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NUCLEON BEAMS
NUCLEON-NUCLEON INTERACTIONS
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PROTON-NUCLEON INTERACTIONS
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