An adjustable curved crystal monochromator for X-ray diffraction analysis
article
The logarithmic spiral form of Barrau d’s monochromator can be obtained to a good approximation by exerting unequal bending moments on the short edges of a rectangular crystal plate. In the first two paragraphs some aberration formulas are derived pertaining to the asymetrical Barraud -type monochromator. In § 4 the new way of mounting is described. The aberration due to its approximative character is calculated. It appears to be negligible in the case of a monochromator, constructed and successfully used in this laboratory, the details of which are described in § 6. Finally it is an advantage of the device that there is no high precision work needed in making the crystal holder; further, that the monochromator can easily be set to a large range of wave lengths and crystal-to-focus distances.
TNO Identifier
946768
ISSN
03657140
Source
Applied Scientific Research, Section B, 1(1), pp. 119-126.
Publisher
Oxford University Press OUP
Collation
8 p.
Place of publication
Oxford, UK
Pages
119-126
Files
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