Experimental effective atomic numbers for the photoelectric process in some alloys at 84 and 145 keV

Journal Article · Thu May 01 04:00:00 EDT 1986 · Nucl. Sci. Eng.; (United States)

OSTI ID:5368850

Siddappa, K; Nayak, N G; Balakrishna, K M; Lingappa, N

The total attenuation coefficients are measured for seven alloys at 84 and 145 keV by the transmission method using a good geometry setup employing a NaI(Tl) scintillation spectrometer. The scattering contributions are deduced using the theoretical cross sections taken from the recent literature and are subtracted from the measured total cross sections to get the photoelectric cross sections. Finally, the effective atomic numbers are obtained from the graph of cross section versus the atomic number. Results are compared with semiempirical estimates and are found to be in good agreement. Results are also compared with the available experimental values, some of which are reported at 412 keV and some at 52.5 keV and a good agreement is noted.

• Research Organization: Mangalore Univ., Dept. of Physics, Mangalagangotri-574199, Mangalore
• OSTI ID: 5368850
• Journal Information: Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 93:1; ISSN NSENA
• Country of Publication: United States
• Language: English

Related Subjects

654002* -- Radiation & Shielding Physics-- Shielding Calculations & Experiments-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALLOYS
ATOMIC NUMBER
ATTENUATION
CROSS SECTIONS
DATA ANALYSIS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
GAMMA RADIATION
GRAPHS
IONIZING RADIATIONS
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
MEASURING INSTRUMENTS
NAI DETECTORS
NEUTRAL-PARTICLE TRANSPORT
PHOTOELECTRIC EFFECT
PHOTOELECTROMAGNETIC EFFECTS
PHOTON TRANSPORT
RADIATION DETECTORS
RADIATION TRANSPORT
RADIATIONS
SCATTERING
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
TOTAL CROSS SECTIONS