Title

A Program Of Basic Research To Study X-ray Spectra In The Region 15-50 Å 

Date

1961

Index Abstract

Contrails and DTIC

Photo Quality

Incomplete

Report Number

WADD TR 61-168

Creator

Furnas, Thomas C., Jr.

White, Eugene W.

Corporate Author

Picker X- Ray Corporation

Laboratory

Directorate of Materials and Processes

Extent

30

Identifier

AD0276293

AD0276293

Access Rights

OTS

Distribution Classification

1

Contract

AF 33(616)-7177

DoD Project

7364

DoD Task

73640

DTIC Record Exists

Yes

Distribution Change Authority Correspondence

None

Abstract

A vacuum spectrographic system has been designed and built for the study of x-ray spectra in the 15 to 50 Å region. This spectrograph is equally well suited for use throughout the ordinary x-ray region from 0.1 to 15 Å. Initial and principal experiments with the system will be with Bragg Law analyzers; however, the system is dimensionally compatible with the installation and use of grazing incidence gratings should it be desired to extend the experiments to include comparisons of performance. The present spectrometer drive is accurate to better than ±0.02° and reproducible to ±0.002°. A specimen can be excited either by direct electron bombardment or by high intensity x-rays. The versatile generator arrangement provides fully stabilized outputs of up to 30,000 volts full wave rectified or at constant potential and up to 100 ma. Analyzers built from monomolecular barium stearate films have yielded strong, sharp diffraction lines from as few as 140 layers. The 50.2 Å d spacing of these analyzers is ideal from the standpoint of any future use in double crystal spectrometer arrangements.

Report Availability

Full text available

Date Issued

1961-05

Subject

Spectrography

Vacuum Apparatus

X Ray Spectroscopy

Barium Compounds

Diffraction

Electron Irradiation

Fluorescence

Generators

Stearates

Publisher

Wright-Patterson Air Force Base, OH : Aeronautical Systems Division, Air Force Systems Command, United States Air Force

Distribution Conflict

No

Provenance

IIT

Type

report

Format

1 online resource