11. The active and passive sensors provide coincident measurements of the surface emission and backscatter . 12. The ACLU refers to backscatter x-rays as a " virtual strip search ". 13. The primary application of geophysical model function ( GMF ) which relates wind and backscatter . 14. Octafluoropropane microbubbles reflects sound waves well and are used to improve the ultrasound signal backscatter . 15. The US Marshal Service did operate a backscatter machine in a courthouse which records images. 16. Other techniques include backscatter SEM, elemental mapping and " camera lucida " drawing. 17. In this configuration, some of the electrons which enter the sample backscatter and may escape. 18. Nevertheless, backscatter and near-camera reflections are very real phenomena which deserve an article. 19. AS & E has also developed a mobile backscatter X-ray van ( ZBV ). 20. Some backscatter X-ray scanners can scan much larger objects, such as trucks and containers.
