Bonse Hart camera

Fig. 29. Schematic design of a Bonse-Hart camera. The first double crystal is used for monochromatization. In order to perform a 9-scan, the second double crystal has to be rotated...

Although the light scattering range is also accessible by the Bonse-Hart camera [2], this type of optics is not well suited for real time experiments. 

The Bonse-Hart camera which has already been mentioned above is capable of reaching ultrasmall Q-values but is much more compact as compared to the... 

Bonse-Hart-Camera Ultrasmall Angle X-Ray Scattering (USAXS)... 

An extended discussion of the Bonse-Hart camera has been given by Chu and coworkers [91] this reference as well as the review by Pedersen [69] also contain further citations on the subject. A further discussion of the technical problems has been given by Koga et al. [92]. 

The application of the Bonse-Hart camera to polymer latexes has been seldom up to now. The work of Chu et al. [91] already mentioned above has shown the great potential of USAXS for the structural study of latexes. Reus et al. [93, 94] and Ise at al. [95] have applied USAXS to the investigation of S(q) of latex particles in suspensions. Since USAXS-cameras are now available at synchrotron beam fines [96] more investigations pertaining to latexes and using this techniques are expected to appear in near future. 

An extension of the range to lower Q-values for X-ray studies can now be achieved by using an alternative technique based on the Bonse-Hart camera. 

A higher resolution can also be obtained with a Bonse Hart eamera (Fig. 29). Real time experiments are, however, not practical for such a camera as the second... 

High collimation cameras of the Franks, Eliott, - and Bonse-Hart types make use of total reflection of the X-rays at a glancing angle for collimation. These provide higher resolution with less intensity loss than the Kratky system for studies of spacings above about 1000 A. 

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