Angular distribution of bremsstrahlung produced by electrons with initial energies in the range from 10 to 20 keV incident on thick Ag

POSTER

Abstract

Experimental results are presented comparing the intensities of the thick-target bremsstrahlung produced by electrons with initial energies ranging from 10 to 20 keV incident on Ag, measured at forward angles in the range of 0 to 55 degrees. When the data are corrected for attenuation due to photon absorption within the target, the results indicate that the detected radiation is distributed anisotropically only at photon energies $k $that are approximately equal to the initial energy of the incident electrons $E_{0}$. The results of our experiments suggest that, as $k/E_{0} \to 0$, the detected radiation essentially becomes isotropic due primarily to the scattering of electrons within the target. Comparison to the theory of Kissel \textit{et al.} [At. Data Nucl. Data Tables \textbf{28}, 381 (1983)] suggests that the angular distribution of bremsstrahlung emitted by electrons incident on thick targets is similar to the angular distribution of bremsstrahlung emitted by electrons incident on free-atom targets only when $k/E_{0} \approx 1$. The experimental data also are in approximate agreement with the angular distribution predictions of the Monte Carlo program PENELOPE.

Authors

  • Daniel Gonzales

    Angelo State University

  • Brandon Cavness

    Texas A\&M University, University of Punjab Lahore Pakistan, Department of Physics, Lamar University, Beaumont, TX, BAE Systems, Advanced Systems and Technology, Nashua, NH 03061-0868, USA, Istanbul University, Beyazit, 34459 Istanbul, Turkey, Texas Tech University, Lubbock, TX 79409-1051, USA, Texas Tech University, Department of Physics and Astronomy, Texas A\&M University, Los Alamos National Laboratory, Texas A\&M University-Commerce, ATLAS Collaboration, Physics Department,The University of Texas at Dallas, Department of Surgery (Emergency Medicine), The University of Texas Southwestern Medical Center at Dallas, Texas Tech University - Health Science Center, Massachusetts Institute of Technology, San Antonio College, Angelo State University, Angelo State University / Los Alamos National Laboratory

  • Brandon Cavness

    Texas A\&M University, University of Punjab Lahore Pakistan, Department of Physics, Lamar University, Beaumont, TX, BAE Systems, Advanced Systems and Technology, Nashua, NH 03061-0868, USA, Istanbul University, Beyazit, 34459 Istanbul, Turkey, Texas Tech University, Lubbock, TX 79409-1051, USA, Texas Tech University, Department of Physics and Astronomy, Texas A\&M University, Los Alamos National Laboratory, Texas A\&M University-Commerce, ATLAS Collaboration, Physics Department,The University of Texas at Dallas, Department of Surgery (Emergency Medicine), The University of Texas Southwestern Medical Center at Dallas, Texas Tech University - Health Science Center, Massachusetts Institute of Technology, San Antonio College, Angelo State University, Angelo State University / Los Alamos National Laboratory