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  • 1
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    An accelerator test of semi-empirical cross-sections (1983)
    In:  Other Sources
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    Publication Date: 2019-06-28
    Description: Experimentally measured yields of isotopes of elements from Mg to K resulting from the fragmentation of Ar-40 are compared with calculated yields based on semiempirical cross-section formulas. Excellent mass resolution is obtained in measurements using a beam of 287 MeV/amu Ar-40 incident on a CH2 target. The resolution is made possible by an Si(Li) detector telescope. Whereas the general agreement between calculation and experiment is good, with an rms difference of approximately 24 percent, attention is called to certain significant differences. It is found that important information for refining the semiempirical calculation of fragmentation cross sections can be obtained from data collected during the calibration of cosmic ray detector systems when such calibrations are performed under suitable conditions.
    Keywords: NUCLEAR AND HIGH-ENERGY PHYSICS
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    An accelerator test of semi-empirical cross-sections (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Experimentally measured yields of isotopes of elements from Mg-12 to K-19 resulting from the fragmentation of Ar-40 are compared with calculated yields based on semiempirical cross-section formulae. The measurements, made at the LBL Bevalac using a beam of 287 MeV/amu Ar-40 incident on a CH2 target, achieve excellent mass resolution (up to 0.2 amu) through the use of a Si(Li) detector telescope. The general agreement between calculation and experiment is good (rms difference of about 24 percent), but some significant differences are reported.
    Keywords: NUCLEAR AND HIGH-ENERGY PHYSICS
    Type: International Cosmic Ray Conference; Aug 22, 1983 - Sep 03, 1983; Bangalore; India
    Format: text
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    NASA TECHNICAL REPORTS
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