robert_gertler Posted May 26, 2003 Share Posted May 26, 2003 How are those dazzling flower x-ray photographs made? The incredibly fine resolution of the veins in the flowers suggests that the cut stems are soaked in some kind of radio-opaque solution; but exactly how are they made? Thanks, Rob Gertler Link to comment Share on other sites More sharing options...
andrew_oneill Posted May 26, 2003 Share Posted May 26, 2003 To which x-ray photographs of flowers are you refering? I've seen some fantastic photograms of flowers but no x-rays. Link to comment Share on other sites More sharing options...
luis_de_santos Posted May 26, 2003 Share Posted May 26, 2003 It can be done by soaking or more exactly simply replacing water in a vase with contrast and leting the plant absorb the fluid,This is a tedious and very much unreliable method to gain contrast.The simple way is to radiograph the flower using standard x ray film and screens.Is preferable to use very detail or "extremity" casetts that are designed to reveal very fine detail in xrays of bones,In addition you need to use very high MA (mili amperage) and very low KV ( kilo voltage) in order to gain maximum contrast.Wit simple X ray technique you can achive the fine detail that you are talking about.As a practical note unless you have ready access to radiographic equipment it will be imposible for you to do this kind of work particularly in todays regulatory enviroment.Good luck Link to comment Share on other sites More sharing options...
nathan_congdon Posted May 26, 2003 Share Posted May 26, 2003 Where might we see such pix on line? You've piqued my interest! Nathan Link to comment Share on other sites More sharing options...
aaron_van_de_sande Posted May 26, 2003 Share Posted May 26, 2003 http://www.bmyersphoto.com/ Link to comment Share on other sites More sharing options...
wieslaw1 Posted May 27, 2003 Share Posted May 27, 2003 Luis - I guess you are using continuum rather than monochromatic X-ray radiation in medical applications. Low kV narrows the generated wavelength spectrum in addition to lowering the intensity. Why to compensate it with the increased current and not by using higher kV? The density of biological specimens is equally low as that of flash and bones. What is the typical kV used in X-rays, and what tubes are being used W, Fe? Link to comment Share on other sites More sharing options...
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