THE DEVELOPMENT OF A DILUTE ALUMINUM-GOLD ALLOY FOR THERMAL AND RESONANCE NEUTRON FLUX MEASUREMENTS

摘要: Aluminum -gold alloy wire of very uniform cross section and composition was made for the preparation neutron flux monitors. Because ls uniform, a device to cut lt into pleces equal length can be used rapld monltors need weigh lndividual monitors thus avoided. Homogeneity achieved mainly by rolling annealing, effectiveness each step assessed neutronactlvatlon analysis. The gold content flnal product (wire 0.018 in. dlameter) also determined activation analysis found 0.0985 plus or minus 0.0020 at.%. Thermal-neutron self-shleldlng ln thls is negligible cadmlum ratio experiments show that resonanceneutron self-shielding amounts about 2.5%. (auth)