ENERGY AND ANGULAR DISTRIBUTION OF X-RAYS SCATTERED IN LEAD

Journal Article · Sun Dec 15 00:00:00 EST 1957 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.108.1361· OSTI ID:4311185

Hubbell, J H; Hayward, E; Titus, W F

The energy and angular distributions of the photons transmitted by thick lead barriers irradiatcd by 8- and l0Mev bremsstrahlung beams have been measured by using a NaI(Tl) spectrometer. These distributions have been integrated over angle. The resultant energy distributions, after subtraction of the calculated annihilation radiation component, have been compared with the results of moments- method infinite-medium theory for plane monodirectional sources. Discrepancies of the order of 10% above 1 Mev and of the order of 50% below 1 Mev may be attributed, respectively, to omission of bremsstrahlung from the theory and the presencc of a boundary in the experiment. An angular distribution of the transmitted energy indicated a nearly exponential falloff with angle. (auth)

• Research Organization: National Bureau of Standards, Washington
• NSA Number: NSA-12-005058
• OSTI ID: 4311185
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Vol. Vol: 108; Other Information: Orig. Receipt Date: 31-DEC-58
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

PHYSICS
ANGULAR DISTRIBUTION
ANNIHILATION
ANODES
BREMSSTRAHLUNG
CALUTRON
CATHODES
CIRCUITS
CONTROL
CURRENTS
ELECTRIC ARCS
ELECTRON TUBES
ELECTRONS
EMISSION
ENERGY
ENERGY RANGE
GAMMA SPECTROMETERS
ION SOURCES
ISOTOPE SEPARATION
LEAD
MASS SPECTROMETERS
RESISTORS
SCATTERING
SCINTILLATION COUNTERS
SODIUM IODIDES
THALLIUM
X RADIATION