Photon mass attenuation and mass energy-absorption coefficients for H, C, N, O, Ar, and seven mixtures from 0. 1 keV to 20 MeV

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Radiat. Res.; (United States)

DOI:https://doi.org/10.2307/3574732· OSTI ID:7109456

Hubbell, J H

Mass attenuation coefficients ..mu../rho for H, C, N, O, and Ar, developed at the National Bureau of Standards by the X-Ray and Ionizing Radiation Data Center from the latest theoretical and experimental cross-section data, are tabulated for photon energies from 0.1 keV to 20 MeV, including the cesium-137 and cobalt-60 energies explicitly. Cross sections are listed, for the above elements, for the principal photon-atom interactions: coherent and incoherent scattering, atomic photoeffect, and positron-electron pair and triplet production; the energy-absorption cross sections for these interactions are also listed. From this cross-section data base, mass energy-absorption coefficients ..mu../sub en//rho, taking into account bremsstrahlung losses and positron annihilation in flight, Compton-scattered and fluorescence photons, and mass-attenuation coefficients ..mu../rho, are tabulated for the above elements and for the mixtures: air, water, polystyrene, methyl methacrylate (Lucite, Perspex, Plexiglass, etc.), polyethylene, bakelite, and amber over the range from 0.1 keV to 20 MeV. For application to cavity ionization detector metrology the ratio ..mu../sub en//rho in air to that in carbon and to that in the above six remaining mixtures is tabulated over the same energy range. The air and carbon ..mu../sub en//rho values and air/carbon ratios are compared with those in ICRU Report 17 and other earlier compilations.

• Research Organization: National Bureau of Standards, Washington, DC
• OSTI ID: 7109456
• Journal Information: Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 70:1; ISSN RAREA
• Country of Publication: United States
• Language: English

Related Subjects

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
AIR
ALKALI METAL ISOTOPES
AMBER
ARGON
ATOM COLLISIONS
BAKELITE
BASIC INTERACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BREMSSTRAHLUNG
CARBON
CARBOXYLIC ACID ESTERS
CESIUM 137
CESIUM ISOTOPES
COBALT 60
COBALT ISOTOPES
COHERENT SCATTERING
COLLISIONS
COMPTON EFFECT
CROSS SECTIONS
CRYOGENIC FLUIDS
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY LOSSES
ENERGY RANGE
ESTERS
FLUIDS
GAMMA RADIATION
GASES
HYDROGEN
HYDROGEN COMPOUNDS
INTERACTIONS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZATION CHAMBERS
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
KEV RANGE 01-10
KEV RANGE 10-100
KEV RANGE 100-1000
LUCITE
MASS
MEASURING INSTRUMENTS
METHACRYLIC ACID ESTERS
METHYL METHACRYLATE
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NEUTRAL-PARTICLE TRANSPORT
NITROGEN
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
OXYGEN
OXYGEN COMPOUNDS
PAIR PRODUCTION
PERSPEX
PETROCHEMICALS
PETROLEUM PRODUCTS
PHOTON COLLISIONS
PHOTON TRANSPORT
PHOTON-ATOM COLLISIONS
PLASTICS
PLEXIGLAS
POLYACRYLATES
POLYETHYLENES
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
RADIATION DETECTORS
RADIATION TRANSPORT
RADIATIONS
RADIOISOTOPES
RARE GASES
SCATTERING
WATER
X RADIATION
YEARS LIVING RADIOISOTOPES