Path: utzoo!attcan!uunet!cs.utexas.edu!usc!apple!decwrl!hayes.fai.alaska.edu!acad3.fai.alaska.edu!ftpam1 From: ftpam1@acad3.fai.alaska.edu (MUNTS PHILLIP A) Newsgroups: sci.electronics Subject: Re: Need help ... is there any inexpensive device that Message-ID: <1990Jul21.023806.12927@hayes.fai.alaska.edu> Date: 21 Jul 90 02:38:06 GMT References: <14380@venera.isi.edu> Sender: usenet@hayes.fai.alaska.edu (J Random USENET) Reply-To: ftpam1@acad3.fai.alaska.edu Organization: University of Alaska Fairbanks Lines: 17 News-Software: VAX/VMS VNEWS 1.3-4 In article <14380@venera.isi.edu>, sllu@jenny.isi.edu (Shih-Lien Lu) writes... >will detect UV light only (200nm to 400 nm wave length)? >If not, is there any device that will detect light down to 200 nm wave >length? >Thank you in advance. > > >Shih-Lien Lu Photomultiplier tubes (possibly with optic filtering). High voltage (> 1 KV) and big bucks ($$$). Manufacturers include RCA and Hammatsu. Sorry I don't have addresses available; my databooks are in storage some 3000 Km southeast. Philip Munts N7AHL NRA Extremist, etc. University of Alaska, Fairbanks