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This technique takes advantage of partially-coherent x-rays and diffraction to enable clear …


Biology Articles » Methods & Techniques » Real-time phase-contrast x-ray imaging: a new technique for the study of animal form and function » Abbreviations

Abbreviations
- Real-time phase-contrast x-ray imaging: a new technique for the study of animal form and function

Abbreviations

DGC, discontinuous gas exchange

D, incident beam power density

d, sample-detector distance

E, x-ray energy

Iinc, incident beam intensity

L, source-sample distance

λ, x-ray wavelength

ρ, sample density

RQ, respiratory quotient

RS, respiratory signal

R(x,y), effective detector resolution

σs, source size

TTRS, time to respiratory signal

V, volume

x-y, image plane

z, beam direction

Competing interests

The authors declare that they have no competing interests.

Authors' contributions

The scope of this paper was conceived by all authors. JS and JW collected most of the data. JS and WKL performed the analyses. JS and WKL drafted the manuscript, and JH and MW contributed to the writing. All authors read and approved the final manuscript.

Acknowledgements

We thank Kamel Fezzaa and Aaron Rice with help in collecting data, John Lighton, Barbara Joos, and Robbin Turner of Sable Systems International (SSI) for assistance with respirometry equipment, Kendra Greenlee for help with the thermocouple thermometry, and Jim Liebherr for help with identification of beetle internal anatomy. Use of the Advanced Photon Source was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. W-31-109-ENG-38. Harrison's work at ANL was supported by NSF IBN-9985857 and IBN 0419704.


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