OKTAVIAN Benchmarks

OKTAVIAN Benchmarks#

Aspect

Details

Facility

Osaka University, operational since 1981

Neutron Source

250 keV D⁺ beam on 370 GBq tritium target

D-T fusion up to 3×10¹² neutrons/s

Experiments (1984–1988)

Sphere pile (Al, Co, Cr, Cu, LiF, Mn, Mo, Si, Ti, W, Zr)

Measurement Technique

TOF at 11 m, 55° angle

Neutron Detector

NE-218 liquid scintillator (12.7 cm ⌀ × 5.1 cm)

Gamma Detector

NaI scintillator at 5.8 m

Source Characterization

Same TOF setup; isotropic source assumed for analysis

Background Suppression

Polyethylene/iron layered collimator facing detector

Calibration

Cf-252 TOF + graphite leakage spectra; Nb foil activation (Nb-92m)

Gamma Reactions Observed

Mainly (n,n’), (n,2n); minimal (n,xγ) contribution