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Title: Enhancement of soft X-ray lasing action with thin blade radiators

Abstract

An enhancement of approximately 100 of stimulated emission over spontaneous emission of the CVI 182 Angstrom line was obtained in a recombining magnetically confined plasma column. The plasma was formed by focusing a CO.sub.2 laser beam on a carbon disc. A magnetic solenoid produced a strong magnetic field which confined the plasma to the shape of a column. A single thin carbon blade extended parallel to the plasma column and served to make the column axially more uniform and also acted as a heat sink. Axial and transverse measurements of the soft X-ray lasing action were made from locations off-set from the central axis of the plasma column. Multiple carbon blades located at equal intervals around the plasma column were also found to produce acceptable results. According to another embodiment 10 a thin coating of aluminum or magnesium was placed on the carbon disc and blade. The Z of the coating should preferably be at least 5 greater than the Z of the target. Measurements of the soft X-rays generated at 182 Angstroms showed a significant increase in intensity enhancement.

Inventors:
 [1];  [2];  [3]
  1. (Princeton Junction, NJ)
  2. (Kingston, NJ)
  3. (Hopewell, NJ)
Issue Date:
OSTI Identifier:
866720
Patent Number(s):
4771430
Assignee:
Princeton University (Princeton, NJ) OSTI
DOE Contract Number:  
KC-05-01
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
enhancement; soft; x-ray; lasing; action; blade; radiators; approximately; 100; stimulated; emission; spontaneous; cvi; 182; angstrom; line; obtained; recombining; magnetically; confined; plasma; column; formed; focusing; laser; beam; carbon; disc; magnetic; solenoid; produced; strong; field; shape; single; extended; parallel; served; axially; uniform; acted; heat; sink; axial; transverse; measurements; locations; off-set; central; axis; multiple; blades; located; equal; intervals; found; produce; acceptable; results; according; embodiment; 10; coating; aluminum; magnesium; placed; z; preferably; target; x-rays; generated; angstroms; significant; increase; intensity; lasing action; significant increase; confined plasma; plasma column; central axis; heat sink; magnetic field; laser beam; soft x-ray; stimulated emission; magnetically confined; strong magnetic; spontaneous emission; soft x-rays; equal intervals; x-rays generated; /372/

Citation Formats

Suckewer, Szymon, Skinner, Charles H., and Voorhees, David R. Enhancement of soft X-ray lasing action with thin blade radiators. United States: N. p., 1988. Web.
Suckewer, Szymon, Skinner, Charles H., & Voorhees, David R. Enhancement of soft X-ray lasing action with thin blade radiators. United States.
Suckewer, Szymon, Skinner, Charles H., and Voorhees, David R. Fri . "Enhancement of soft X-ray lasing action with thin blade radiators". United States. https://www.osti.gov/servlets/purl/866720.
@article{osti_866720,
title = {Enhancement of soft X-ray lasing action with thin blade radiators},
author = {Suckewer, Szymon and Skinner, Charles H. and Voorhees, David R.},
abstractNote = {An enhancement of approximately 100 of stimulated emission over spontaneous emission of the CVI 182 Angstrom line was obtained in a recombining magnetically confined plasma column. The plasma was formed by focusing a CO.sub.2 laser beam on a carbon disc. A magnetic solenoid produced a strong magnetic field which confined the plasma to the shape of a column. A single thin carbon blade extended parallel to the plasma column and served to make the column axially more uniform and also acted as a heat sink. Axial and transverse measurements of the soft X-ray lasing action were made from locations off-set from the central axis of the plasma column. Multiple carbon blades located at equal intervals around the plasma column were also found to produce acceptable results. According to another embodiment 10 a thin coating of aluminum or magnesium was placed on the carbon disc and blade. The Z of the coating should preferably be at least 5 greater than the Z of the target. Measurements of the soft X-rays generated at 182 Angstroms showed a significant increase in intensity enhancement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

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