Accession Number : ADA194621

Title :   Determination of Plutonium-Beryllium Source Strength by Manganese Activation.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Whitworth, Paul F , Jr

PDF Url : ADA194621

Report Date : Mar 1988

Pagination or Media Count : 62

Abstract : In this study the manganese-sulfate-bath technique was used to determine the total neutron output of a Plutonium-Beryllium neutron source. Activation trials were conducted using 4 different concentrations of manganese sulfate and 3 different size containers. Correction factors for source absorption, non-leakage, and resonance absorption were calculated using data generated by MORSE, a Monte Carlo neuron transport code. Values for these factors were calculated for manganese sulfate concentrations between 5.56% and 36.00%, and volumes from 17.2 to 160 liters in cylindrical containers. A source strength of 1.07 x 10 to the 7th + or - 3% neutrons per second was found by using experimentally measured manganese activity in conjunction with the computer-predicted correction factors.

Descriptors :   *BERYLLIUM, *PLUTONIUM, *RADIOACTIVE ISOTOPES, *NEUTRON ACTIVATION, ABSORPTION, ACTIVATION, COMPUTER APPLICATIONS, CONTAINERS, CORRECTIONS, CYLINDRICAL BODIES, MANGANESE, NEUTRONS, OUTPUT, PREDICTIONS, RESONANCE ABSORPTION, SOURCES, STRENGTH(GENERAL), NEUTRON MULTIPLICATION FACTOR, SULFATES

Subject Categories : Nuclear Physics & Elementary Particle Physics
      Isotopes

Distribution Statement : APPROVED FOR PUBLIC RELEASE