Accession Number : AD0652514

Title :   THE CHEMICAL DISTRIBUTION OF 11C AFTER PROTON IRRADIATION OF INULIN IN DILUTE WATER SOLUTION,

Corporate Author : UPPSALA UNIV (SWEDEN) GUSTAF WERNER INST

Personal Author(s) : Stenstrom,Tore

Report Date : AUG 1965

Pagination or Media Count : 13

Abstract : Inulin in both aerated and de-aerated water solutions, in the concentration range 0.00001 to 0.01 g/ml, was irradiated with 60 MeV protons. The reaction products were separated on Sephadex into a low and a high molecular fraction. The distribution of the induced carbon-11 activity between the two fractions was studied and it was found that up to 50% of the activity was bound to molecules of high molecular weight. The scavenging efficiency was found to be dependent on the dose rate and seen to be decreasing with reduced beam current. The possibility of labelling organic compounds by direct proton irradiation in water solutions is discussed. (Author)

Descriptors :   (*INULIN, *LABELED SUBSTANCES), RADIOACTIVE ISOTOPES, CARBON, PROTON BOMBARDMENT, TRACER STUDIES, SWEDEN

Subject Categories : Radiobiology
      Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE