RADIOISOTOPE AND RADIATION APPLICATIONS QUARTERLY PROGRESS REPORT. SECTION I. USE OF INTRINSIC RADIOACTIVE TRACERS FOR PROCESS CONTROL. SECTION II. RADIATION-INDUCED GRAFT-POLYMERIZATION STUDIES

Technical Report · Mon Oct 23 04:00:00 EDT 1961

DOI:https://doi.org/10.2172/4829813· OSTI ID:4829813

McFarling, J. L.; Gluck, P.; Kircher, J. F.; Sunderman, D. N.; Sliemers, F. A.; Luttinger, M.; Guelbaran, E.; Gager, W. B.; Lieberman, R.; Kircher, J. F.; Leininger, R. I.

Research was continued in the areas of intrinsic radioactive tracers for industrial process control and the influence of structural factors in radiation- induced graft polymerization. The use of in-process isotope neutron soarces to produce short-lived radiotraces is discussed. A 10c Po--Be neutron source was obtained for exploratory experiments. The design and construction of a neutronsource storage shield and an activatioa-cell holder are underway. The effect of structural factors oii the eIficiency of free-radical site formation in acrylate and methacrylate polymers was emphasized. Site measurements versus dose were made for poly-n-hexylmethacrylate. Two additional methods for measuring free-radical conceiitrations, a chemical method employing diphenylpicrylhydrazyl and hydroquinone and a method based on molecular-weight decreases, were developed. The grafting studies were continued. (M.C.G.)

• Research Organization: Battelle Memorial Inst., Columbus, Ohio
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-92
• NSA Number: NSA-16-002093
• OSTI ID: 4829813
• Report Number(s): BMI-X-179
• Country of Publication: United States
• Language: English

Related Subjects

ACRYLIC ACID
ACTIVATION
BERYLLIUM
CONFIGURATION
CONTROL
CONTROL ELEMENTS
DPPH
FREE RADICALS
GRAFT POLYMERS
INDUSTRIAL APPLICATIONS OF ISOTOPES AND RADIATIONS
IRRADIATION
METHACRYLIC ACID
NEUTRON SOURCES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHENYL RADICALS
PICRYL RADICALS
POLONIUM
POLYMERIZATION
POLYMERS
QUINONES
RADIOISOTOPES
SHIELDING MATERIALS
STORAGE
TRACER TECHNIQUES