Atomic pair production by photons in the threshold region

Journal Article · Wed Apr 01 04:00:00 EST 1981 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.23.1817· OSTI ID:6802310

Basu, J; Sen Gupta, S K; Paul, N C; Das, S C; Chaudhuri, N

New results of relatively high-precision measurements to study atomic pair production by photons in the threshold region together with some other previous measurements are presented for a critical evaluation of the new calculations with corrections of Coulomb effect and atomic-electron screening effect in the low-energy pair production. This evaluation reveals the degree in which the theory is in greater agreement with measurements in the threshold region and indicates the trend of cross sections as a function of atomic number and photon energy.

• Research Organization: Department of Physics, North Bengal University, Pin 734430 Darjeeling, India
• OSTI ID: 6802310
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 23:4; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

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Molecular & Chemical Physics-- Collision Phenomena
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Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METAL COMPOUNDS
ATOM COLLISIONS
ATOMS
ATTENUATION
BEAMS
COLLISIONS
COULOMB FIELD
CROSS SECTIONS
DATA
ELECTRIC FIELDS
ELEMENTARY PARTICLES
ENERGY
ENERGY DEPENDENCE
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INORGANIC PHOSPHORS
INTERACTIONS
IODIDES
IODINE COMPOUNDS
MASSLESS PARTICLES
NUMERICAL DATA
PAIR PRODUCTION
PHOSPHORS
PHOTON BEAMS
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PHOTONS
SCREENING
SODIUM COMPOUNDS
SODIUM IODIDES
THEORETICAL DATA
THRESHOLD ENERGY