Accession Number:

AD0735793

Title:

Luminescence Yield in Roentgenography with High-Energy X-Rays.

Descriptive Note:

Research memo.,

Corporate Author:

GRUMMAN AEROSPACE CORP BETHPAGE N Y RESEARCH DEPT

Personal Author(s):

• Brandt,Werner
• Stauber,Michael C.

Report Date:

1972-01-01

Pagination or Media Count:

9.0

Abstract:

A universal energy transfer function is derived that applies to absorption of X-rays or gamma rays in all thin luminescent screens over a wide range of incident energies. This function is evaluated for monoenergetic incident radiation and for bremsstrahlung originating in gold targets. A scaled universal luminescence yield is given, in terms of the energy transfer function minus an energy escape function which accounts for the energy loss by electron escape from the phosphor. Under conditions where the energy escape is small, the dominant dependence of the luminescence yield on the phosphor appears only as a multiplicative material characteristic constant. Author

Descriptors:

• *RADIOGRAPHY
• LUMINESCENCE
• GAMMA RAYS
• ABSORPTION SPECTRA
• GOLD
• TRANSFER FUNCTIONS
• COMPTON SCATTERING

Subject Categories:

• Test Facilities, Equipment and Methods
• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE