Author: Chaudhri, M.A.
Paper Title Page
TH1PB03 Activation Analysis with Charged Particles: Theory, Practice and Potential 440
  • M.A. Chaudhri
    Inst. of Biomaterials, Uni. of Erlangen-Nuernberg, Erlangen, Germany
  Charged particle activation analysis (CPA) is an important application of cyclotrons. It is sensitive and can also activate lighter and other elements, such as Al, Si, Ti, Cd, Tl, Pb, Bi, etc., which cannot be conveniently or at all determined by slow neutron activation (NA). But, the heating of the target in CPA has to be overcome. Besides, it is necessary that the matrices of the sample and the “Standard” are identical or at least similar,which is not always convenient. However, with Chaudhri’s method*, CPA is reduced to the simplicity of NA even when matrices of “Standard” and sample are widely different. By using CPA, the effect of French Atomic Tests Series of 1974 in the Pacific on the Australian East Coast was studied. The sensitivity for detecting any element/isotope with Z=20 to Z=90 in any matrix, activated with protons, deuterons and alphas of up to 35 MeV energy have been estimated and presented in graphical form. From these curves the sensitivity of detecting any element/isotope in the aforementioned range can be directly estimated in any given matrix. These curves would help in selecting the most suitable nuclear reaction for the measurement of a particular element.
*A.Chaudhri, N.Chaudhri. Methods of charged-particle activation analysis. Paper presented at the 20th Int. Conf. On Ion Beam Analysis, Itapema (Brazil) 10-15 April, 2011 to be published