A Method of Stretching Thin Aluminum Foil over Large Areas

Total attenuation coefficients of aluminum and gold for 14.4-keV gamma rays have been measured using a resonant (i.e., Mossbauer) detector to reduce forward scattering and background corrections. The results are 390.7=b0.7 and 59 290±70 barns per atom for aluminum and gold, respectively. These values imply photoelectric cross sections of 371.0=1=0.7 and 58 220d=70 barns/atom, respectively. The results are in agreement with other, less precise, measurements in this energy region. Present theoretical estimates of these cross sections are high by 5% for aluminum and 35% for gold.

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Measurement of Total Attenuation Cross Sections in Aluminum and Gold for 14.4-keV Gamma Rays

Alonso

Гродзинс

1965

Phys. Rev.

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A Method of Stretching Thin Aluminum Foil over Large Areas

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Measurement of Total Attenuation Cross Sections in Aluminum and Gold for 14.4-keV Gamma Rays

Measurement of Total Attenuation Cross Sections in Aluminum and Gold for 14.4-keV Gamma Rays

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