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Title: Diamond-anvil high-pressure cell with improved X-ray collimation system

Abstract

An adjustable X-ray collimation system for a diamond-anvil high-pressure cell of the type including a cooperable piston and cylinder and a pair of opposing diamonds located between the head of the piston and the head of the cylinder. The X-ray collimation system includes a tubular insert which contains an X-ray collimator. The insert is engageable in the bore of the piston. The collimator is mounted within the insert by means of an elastomeric O-ring at the end closest the opposed diamonds, and by means of a set of adjustable set screws at the opposite end. By adjustment of the set screws the collimator can be pivoted about the O-ring and brought into alignment with the opposed diamonds and the sample contained therein. In the preferred embodiment there is further provided a set of plugs which are insertable in the bore of the collimator. The plugs have bores of different diameters. By successively inserting plugs of progressively smaller bore diameters and adjusting the alignment of the collimator with each plug, the collimator can be quickly brought into accurate alignment with the diamonds. The collimation system allows alignment of the collimator either before or after the cell has been loaded and pressurized.

Inventors:
 [1];  [2];  [1]
  1. Los Alamos, NM
  2. Santa Fe, NM
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
865936
Patent Number(s):
4602377
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
diamond-anvil; high-pressure; cell; improved; x-ray; collimation; adjustable; type; including; cooperable; piston; cylinder; pair; opposing; diamonds; located; head; tubular; insert; contains; collimator; engageable; bore; mounted; means; elastomeric; o-ring; closest; opposed; set; screws; opposite; adjustment; pivoted; brought; alignment; sample; contained; therein; preferred; embodiment; provided; plugs; insertable; bores; diameters; successively; inserting; progressively; adjusting; plug; quickly; accurate; allows; loaded; pressurized; preferred embodiment; contained therein; set screw; x-ray collimation; tubular insert; high-pressure cell; pressure cell; diamond-anvil high-pressure; /378/976/

Citation Formats

Schiferl, David, Olinger, Barton W, and Livingston, Robert W. Diamond-anvil high-pressure cell with improved X-ray collimation system. United States: N. p., 1986. Web.
Schiferl, David, Olinger, Barton W, & Livingston, Robert W. Diamond-anvil high-pressure cell with improved X-ray collimation system. United States.
Schiferl, David, Olinger, Barton W, and Livingston, Robert W. Wed . "Diamond-anvil high-pressure cell with improved X-ray collimation system". United States. https://www.osti.gov/servlets/purl/865936.
@article{osti_865936,
title = {Diamond-anvil high-pressure cell with improved X-ray collimation system},
author = {Schiferl, David and Olinger, Barton W and Livingston, Robert W},
abstractNote = {An adjustable X-ray collimation system for a diamond-anvil high-pressure cell of the type including a cooperable piston and cylinder and a pair of opposing diamonds located between the head of the piston and the head of the cylinder. The X-ray collimation system includes a tubular insert which contains an X-ray collimator. The insert is engageable in the bore of the piston. The collimator is mounted within the insert by means of an elastomeric O-ring at the end closest the opposed diamonds, and by means of a set of adjustable set screws at the opposite end. By adjustment of the set screws the collimator can be pivoted about the O-ring and brought into alignment with the opposed diamonds and the sample contained therein. In the preferred embodiment there is further provided a set of plugs which are insertable in the bore of the collimator. The plugs have bores of different diameters. By successively inserting plugs of progressively smaller bore diameters and adjusting the alignment of the collimator with each plug, the collimator can be quickly brought into accurate alignment with the diamonds. The collimation system allows alignment of the collimator either before or after the cell has been loaded and pressurized.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

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