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Article #7775Re: K-Ar laser lifespan
From: Brett Schroeder
Date: Fri, 12 May 1995 00:00
Date: Fri, 12 May 1995 00:00
70 lines
3846 bytes
3846 bytes
I would have to question why the Anode current levels are so high even when the laser was first read after receiving it. Every time that a laser has been installed at this institution, the starting Anode current has been from what I have seen since I have been here, around 67.6 mW to 78 mW. When the laser was noted to be failing was when the Anode voltage reached approx. 90+ mW. So starting at the 90 mW level seems high for a 15mW laser. Am I right? Or is the upper 80's to 90 a normal starting point? Also, I was looking through the records here and I came across a spec sheet for an ILT laser from 1993 and it had the laser listed as a 20 mW laser output. When did ILT change to the 15mW instead? >this was a replacment laser (#10121077) while ours was being 'repaired' >date hours LCV ACmv >11-11-94 4 3.1 90-92 >15-11-94 7 3.1 91-92 >17-11-94 10 3.1 88-97 >21-11-94 11 3.1 89-90 >25-11-94 14 3.1 92-95 >28-11-94 16 3.1 90-92 >29-11-94 21 3.1 92-98 >30-11-94 26 3.1 96-97 >01-12-94 28 3.1 94-101 no red line >01-12-94 29 3.1 94-96 when LCV 2.4 >02-12-94 32 3.1 94-95 >07-12-94 34 3.1 93-96 >08-12-94 37 3.1 92-98 >12-12-94 40 3.1 93-96 >13-12-94 42 3.1 92-93 >14-12-94 44 3.1 93-96 >15-12-94 47 3.1 92-95 >16-12-94 51 3.1 93-94 >19-12-94 54 3.1 93-99 >21-12-94 57 3.1 92-95 >26-01-95 64 3.1 96-97 >07-02-95 68 3.1 98-100 >09-02-95 73 3.1 98-100 >20-02-95 79 3.1 98-101 >07-03-95 87 3.1 98-99 >08-03-95 89 3.1 >101 NO RED >09-03-95 91 2.7 93-94 >14-03-95 95 2.7 97-101 >15-03-95 99 2.7 95-96 > > >ours returns (unfortunately hours not recorded, but this was first 47 hrs) >21-03-95 4.0 81.5 >22-03-95 4.0 83-86 poor green line >23-03-95 4.0 85.5-86.5 " >27-03-95 4.0 86-88 " >28-03-95 4.0 89-93 " >31-03-95 4.0 92.5-95 NO GREEN >04-04-95 4.0 94 " >06-04-95 4.0 94-95 " >07-04-95 4.0 94.5 " >10-04-95 4.0 93 " >11-04-95 4.0 91-94 " >08-05-95 4.0 94.5 " >11-05-95 4.0 87-88 GREEN RETURNS! > > >cheers, >Danny Thomas (D.Thomas@vthrc.uq.edu.au) > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + Brett Schroeder 8701 Watertown Plank Road + + Dept. of Cellular Biology & Anatomy Milwaukee, WI 53226-4801 USA + + Medical College of Wisconsin (414) 456-8504 + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 114d69,94e9c1fac77aca1d X-Google-Attributes: gid114d69,public From: Brett Schroeder <schroedb@ITS.MCW.EDU> Subject: Re: K-Ar laser lifespan Date: 1995/05/12 Message-ID: <199505121650.LAA14426@post.its.mcw.edu> X-Deja-AN: 102606426 sender: Confocal Microscopy List <CONFOCAL@UBVM.CC.BUFFALO.EDU> x-sender: schroedb@post.its.mcw.edu comments: Gated by NETNEWS@AUVM.AMERICAN.EDU content-type: text/plain; charset="us-ascii" mime-version: 1.0 newsgroups: bit.listserv.confocal x-mailer: <PC Eudora Version 1.4>