Accession Number : AD0475311


Title :   MEASUREMENTS OF THE MULTIPLE SCATTERING OF VERY RELATIVISTIC ELECTRONS.


Descriptive Note : Master's thesis,


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Kirkpatrick, John H ; Narmi, Ronald E


Report Date : Jan 1965


Pagination or Media Count : 68


Abstract : In order to determine the accuracy with which electron energy can be measured using multiple scattering techniques, and to compare the difference-product and cell-overlap methods of data reduction, multiple scattered electron tracks of known energy were employed. A total of 163 cm of tracks of known energies of 300, 500, and 875 Mev was scattered. It was found that energies calculated from our data were much lower than expected, that radiative effects could not be separated from the general depression of the energy, and that there is little difference in the two methods of data reduction if certain assumptions are satisfied. It was found that energy calculations using both methods compared favorably with the known energy when the noise was cell independent, and compared poorly when noise was cell dependent. The assumption of cell independent noise was not usually valid for data from relativistic electrons. Cell dependent noise was evident in 70% of the 300 Mev events, 63% of the 500 Mev events, and 95% of the 875 Mev events. (Author)


Descriptors :   *ELECTRONS , SCATTERING , ELECTRON BEAMS , ENERGY , MEASUREMENT , CHARGED PARTICLES , VELOCITY , SIGNAL TO NOISE RATIO , COMPUTER PROGRAMMING , FLOW CHARTING , ERRORS , BREMSSTRAHLUNG


Subject Categories : Nuclear Physics & Elementary Particle Physics


Distribution Statement : APPROVED FOR PUBLIC RELEASE