Hi Joe, What is known as 'green paper' and some of the 'burn paper' variants used to be 'Green Detex' from Sessions of York -- and this is to the best of my knowledge not produced anymore. Green Detex was paper with UV sensitive coating for calibrating UV lamps. It works to use other UV sensitive paper types like:
'UV FASTCHECK STRIPS' from UVPS http://www.uvprocess.com/product.asp?code=INTS+LBL+B If you have a surveillance camera at hand you can also use fluorescent screens for a non-permanent indication of the beam position. If you search for 'X-ray intensifying screens', then you will find fluorescent screens that are used in X-ray setups where still a X-ray sensitive film rather than a camera is used: http://www.laborversand.de/product_info.php?info=p574_Intensifying-screens.html http://www.kiranxray.com/xrc_screens.asp I think the X-rays that passed the film are turned via this intensifying screen in visible light that exposes the film, i.e., the film detection becomes more efficient. Anyway: It is a cheap fluorescent screen, with the advantage and disadvantage of non-permanent X-ray position marks. I hope this helps a bit, best regards Oliver > ------------------------------ > > Date: Wed, 26 Jun 2013 16:03:12 -0400 > From: Matthew Franklin <mfrank...@nysbc.org> > Subject: Re: Supplier for X-ray sensitive paper > > Hi Joe - > > This is what I've used in the past. It's film, not paper, but needs no > developer and is instant-readout. I think the "find a distributor" link > should help you obtain it. > > http://www.ashland.com/products/gafchromic-radiology-films > > - Matt > > > On 6/26/13 3:51 PM, Patel, Joe wrote: > > Hi All, > > > > I have done a few searches of the archive and googled a few times but not > found what I am looking for. > > > > Could someone point me in the direction of a supplier of the X-ray sensitive > paper I have used in the past to confirm beam position on a home source. I am > specifically after this type of paper rather than X-ray film so as not to have > to go through any developing stage and quickly visualize the location of the > beam at different points beyond the position of the goniometer towards the > detector. > > > > A USA supplier would be great but any would do. > > > > Many thanks, > > > > Joe P > > > > > > > > -------------------------------------------------------------------------- > > Confidentiality Notice: This message is private and may contain confidential > and proprietary information. If you have received this message in error, > please notify us and remove it from your system and note that you must not > copy, distribute or take any action in reliance on it. Any unauthorized use or > disclosure of the contents of this message is not permitted and may be > unlawful. > > > > > > > > > -- > Matthew Franklin, Ph. D. > Senior Scientist > New York Structural Biology Center > 89 Convent Avenue, New York, NY 10027 > (212) 939-0660 ext. 9374 >
