Soft X-ray laser using pumping of 3P and 4P levels of he-like and H-like ions

Patent · Tue Apr 21 00:00:00 EDT 1987

OSTI ID:6535746

Hagelstein, P L

An X-ray laser apparatus is described comprising: a substantially rectangular parallelepiped hollow container containing a low density gas that, is multiply-ionized and undergoes at least one super-radiant laser transition between a pair of excited atomic levels with emission of coherent radiation of energy of at least 40 eV; container having an interior length at least 4 mm and having transverse dimensions substantially 50 ..mu..m height X 120 ..mu..m width, with top and bottom walls being fabricated from thin parylene and having an overcoating of thickness of at least 400 A of a material drawn from the class consisting of Cr, Mn, Co, Ni and Na, with side walls being fabricated from Au, Pt or similar high Z material, and with end walls being fabricated from a material that is substantially transparent to radiation of wavelengths lambda=60-300A; and an irradiation source producing at least 10/sup 14/ watts/cm/sup 2/ of radiation of a wavelength in the wavelength range lambda=0.3-1.1 ..mu..m and positioned to irradiate the overcoating and the container gas along substantially the entire length of the container.

• Assignee: United States Department of Energy, Washington, DC
• Patent Number(s): US 4660203
• OSTI ID: 6535746
• Resource Relation: Patent File Date: Filed date 5 Jul 1985
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASERS
DESIGN
ELECTRICAL PUMPING
CHROMIUM
COBALT
COHERENT RADIATION
CONTAINERS
DENSITY
EXCITATION
GASES
GOLD
IONIZATION
MANGANESE
NICKEL
PLATINUM
SODIUM
SOFT X RADIATION
WALLS
ALKALI METALS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FLUIDS
IONIZING RADIATIONS
METALS
PHYSICAL PROPERTIES
PLATINUM METALS
PUMPING
RADIATIONS
TRANSITION ELEMENTS
X RADIATION
420300* - Engineering- Lasers- (-1989)