Neutron Inelastic Scattering Mechanism and Measurement of Neutron Asymmetry Using Time of Flight Technique

Journal Article · Wed Feb 14 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2711121· OSTI ID:21054902

Al Azzawe, A. J. M. ^[1]

---

1. Nuclear Energy Center (Argentina)

Inelastic scattering is an essential reaction for other nuclear reactions to detect the optical model and compound nucleus formation within the range of (0.4- 5.0) MeV neutron incident energy by using time of flight technique. The time of flight system (TOFS) installed on the horizontal channel reactor RRA has been used to measure the asymmetry of scattered fast neutrons, when data acquisition and system control were recorded event by event by HP - computer via CAMAC system. Eight NE 213 neutron counters were used in order to detect neutron inelastic scattering in the forward direction (4 neutron counters at 0 deg. angle) and in the backward direction (4 neutron counters at 180 deg. angle) to measure the asymmetry of fast neutron. Each neutron counter was 50cm in length and 8cm in diameter, viewed by two (58 - DVP) photomultiplier tubes. The contribution of direct interaction to the compound nucleus formation was deduced from the asymmetry in the neutron detection at the same direction of these eight neutron counters. A time resolution of 8.2 ns between the eight neutron counters and one of the two Ge(Li) detectors has been obtained.

• OSTI ID: 21054902
• Journal Information: AIP Conference Proceedings, Vol. 888, Issue 1; Conference: MTPR-06: 2. international conference on modern trends in physics research, Cairo (Egypt), 6-11 Apr 2006; Other Information: DOI: 10.1063/1.2711121; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ASYMMETRY
CAMAC SYSTEM
COMPOUND NUCLEI
COMPOUND-NUCLEUS REACTIONS
DATA ACQUISITION
DATA ACQUISITION SYSTEMS
FAST NEUTRONS
INELASTIC SCATTERING
LI-DRIFTED GE DETECTORS
MEV RANGE
NEUTRON DETECTION
OPTICAL MODELS
PHOTOMULTIPLIERS
SYMMETRY
TIME RESOLUTION
TIME-OF-FLIGHT METHOD