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LosAlamos NATIONAL LABORATORY LosAlamos National Laboratory, anaffirmative action/equal opportunity empldyer, isoperated bytheUniversity of California forthe U.S.Department ofEnergy undercontract W-7405-ENG-36. Byacceptance o! thisarticle, thepublisher recognizes thattheU.S.Government retains a nonexclusive, royalty-free license to publish orreproduce thepublished formofthiscontribution, orIoallowothers to doso,forU.S.Government purposes. TheLosAlamos National Laboratory requests thatthepublisher identify thisarticle asworkperformed under theauspices o! theU.S.Department of Energy.

We have determined the strain and particle size for several samples of palladium powder by time-of-flight nrutron powder diffraction on two different diffractometers and by x-ray powder diffraction. The results are compared and found to be in fair agreement. The time-of-flight method gives good enough precision to reveal deficiencies in the simple models used for strain and particle size line broadening.

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