Hostname: page-component-8448b6f56d-qsmjn Total loading time: 0 Render date: 2024-04-24T11:19:33.977Z Has data issue: false hasContentIssue false
  • English
  • Français

An easy to use X-ray collimator for Mao-Bell type diamond anvil cell

Published online by Cambridge University Press:  01 March 2012

P. Ch. Sahu ,
N. R. Sanjay Kumar ,
N. V. Chandra Shekar  and
N. Subramanian
P. Ch. Sahu
Affiliation:
Advanced Materials Section, Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
N. R. Sanjay Kumar
Affiliation:
Advanced Materials Section, Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
N. V. Chandra Shekar
Affiliation:
Advanced Materials Section, Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
N. Subramanian
Affiliation:
Advanced Materials Section, Materials Science Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
Get access Rights & Permissions [Opens in a new window]

Abstract

An incident beam X-ray collimator for Mao-Bell type diamond anvil cell (DAC) has been developed. Alignment of the collimator is carried out in situ while viewing the image of the collimated X-ray spot formed on a thin layer of fluorescent material spread on the diamond anvil culets with the help of a microscope. Special precaution has been taken to meet the radiation safety requirements during alignment and routine use. This collimator is of immense help for laboratory based high pressure X-ray diffraction experiments.

Keywords

high-pressure X-ray diffractioncollimatordiamond anvil cell
Type
Laboratory Notes
Information
Powder Diffraction , Volume 21 , Issue 4 , December 2006 , pp. 320 - 322
Copyright
Copyright © Cambridge University Press 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Dunstan, D. J. and Spain, I. L. (1989). “Technology of diamond anvil high-pressure cells: I. Principles, design and construction,” J. Phys. E JPSIAE 10.1088/0022-3735/22/11/004 22, 913–922.CrossRefGoogle Scholar
Eremets, M. I. (1996). High Pressure Experimental Methods (Oxford, New York).Google Scholar
Goettel, K., Bell, P. M., and Mao, H. K. (1985). “Generation of static pressures above 2.5 megabars in a diamond-anvil pressure cell,” Rev. Sci. Instrum. RSINAK 10.1063/1.1138497 56, 1420–1427.CrossRefGoogle Scholar
Hemley, R. J. and Mao, H. K. (1992). Static Compression to Multimegabar Pressures: Shock Compression of Condensed Matter, edited by Schmidt, S. C., Dick, R. D., Forbes, J. W., and Tasker, D. G. (Elsevier, Amsterdam), pp. 27–38.Google Scholar
Hemley, R. J., Mao, H. K., and Struzhkin, V. V. (2005). “Synchrotron radiation and high pressure: new light on materials under extreme conditions,” J. Synchrotron Radiat. JSYRES 12, 135–154.CrossRefGoogle ScholarPubMed
Holzapfel, W. B. and Isaacs, N. S. (1997). High Pressure Techniques in Chemistry and Physics—A Practical Approach (Oxford, New York).CrossRefGoogle Scholar
Jayaraman, A. (1986). “Ultrahigh pressures,” Rev. Sci. Instrum. RSINAK 10.1063/1.1138654 57, 1013–1031.CrossRefGoogle Scholar
Jayaraman, A. (1983). “Diamond anvil cell and high-pressure physical investigations,” Rev. Mod. Phys. RMPHAT 10.1103/RevModPhys.55.65 55, 65–108.CrossRefGoogle Scholar
Jephcoat, A. P., Mao, H. K., and Bell, P. M. (1987). Operation of the Megabar Diamond Anvil Cell: Hydrothermal Experimental Techniques, edited by Ulmer, G. C. and Barnes, H. L. (Wiley, New York), pp. 469–506.Google Scholar
Mao, H. K. and Bell, P. M. (1978). “Design and varieties of the megabar cell,” Year Book - Carnegie Inst. Washington CIWYAO 77, 904–908.Google Scholar
Mao, H. K. and Hemley, R. J. (1996). “Energy dispersive x-ray diffraction of micro-crystals at ultrahigh pressures,” High Press. Res. HPRSEL 14, 257–267.CrossRefGoogle Scholar
Mao, H. K. and Hemley, R. J. (1998). New Windows on the Earth’s Deep Interior: Reviews of Mineralogy and Geochemistry, edited by Hemley, R. J. (Mineralogy Society of America, Washington), pp. 1–32.Google Scholar
Nelmes, R. J. and McMahon, M. I. (1994). “High-pressure powder diffraction on synchrotron sources,” J. Synchrotron Radiat. JSYRES 10.1107/S0909049594006679 1, 69–73.CrossRefGoogle ScholarPubMed
Ruoff, A. L., Xia, H., and Xia, Q. (1992). “The effect of a tapered aperture on x-ray diffraction from a sample with a pressure gradient: Studies on three samples with a maximum pressure of 560 GPa,” Rev. Sci. Instrum. RSINAK 10.1063/1.1143734 63, 4342–4348.CrossRefGoogle Scholar
Sahu, P. Ch., Mohammad, Y., Shekar, N. V. C., Subramanian, N., and Rajan, K. G. (1995). “Performance of a diamond-anvil high-pressure x-ray diffractometer in the Guinier geometry,” Rev. Sci. Instrum. RSINAK 10.1063/1.1145595 66, 2599–2603.Google Scholar
Spain, I. L. and Dunstan, D. J. (1989). “The technology of diamond anvil high-pressure cells: II. Operation and use,” J. Phys. E JPSIAE 10.1088/0022-3735/22/11/005 22, 923–932.CrossRefGoogle Scholar