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lasersafety,september2014,liverpooluniversity,contents,basicshealthavoidalcohol!,avoidbaggyjumpersandscarves(correcttemp.inlabisessential),removewatchesandjewellery(includingweddingrings),tielonghairback,practicallasersafety?-yes!,hairrestrainedoutofway,nowatchorjewellery,cleararmsandclothingunlikelytosnagopticsorcrossbeampaths,appropriatesafetygoggle,practicallasersafety?!,practicallasersafetydefinitelyno!,toolsontable,nolaserscreens,foodanddrinkinlab,periscopenotenclosed,jewellery,hairunrestrained,cablehangingdown,looseclothinginbeampath,eyesatbeamheight-nosafetygoggles,unsecuredopticpost,loosecovers,areapoorlylit,practicallasersafety-yes!,eyeswellabovebeamheightandsafetygogglesavailable,cleararms,laserscreens,nojewelleryorwatch,properlysecuredoptics,unclutteredopticalset-upandnotoolsontable,generalareawelllit,(1)ensurealloptics(lens,mirrors,etc)aresecurelyfastenedinthecorrectopticalmount(2)ensureallopticalmounts(postsetc)aresecurelyfastenedtotheopticaltable-notloosealwayskeeplaserbeamsparalleltotablesurfaceandpreferablyatonecommonheight(4)alwaysplacebeamstopsascloseasispracticaltoopticsinset-up(5)neverleavecomponentsortoolsinopticalsetup,5safetybenchrules,laserbeamparalleltotable,beamstop,note:allcomponentsfastenedsecurelytotable-includingthelaser!,neverleaveobjectsonopticaltable,note:beamcontainmentwallsaroundopticaltable(safetybelt!),beamalignmentstrategies,visiblemainlaser:(1)useneutraldensityfiltertoreducelaserpowertobelow1mw(2)uselowpowerancillarylaser(1mw)forinitialalignmentofopticsinfraredlaseroruvlaser:alwaysuselowpowerancillarylaser(1mw)forinitialalignment,alllasers:always-startatlowestpowersettingandfirstcheckforstraybeams,changingbeamheight,(1)neverinclinelaserbeamsalwaysuseperiscopes(2)neverworkwithlaserbeamsabovethetablebeamstops,alwaysencloseperiscope,changingbeamheight,useperiscopetochangebeamheight-neverinclinelaserbeams,periscopes-initialalignmentstrategy(nolaserrequired),(1)makeaheightrule(2)marktheinandoutbeamheightontherule(3)positioncentreofmirrorsatcorrectheight,(1)positioneyeinlinewithruleandlowermirror(2)adjustbottommirroruntilimageoftopmirroriscentredonbottommirror,(1)positioneyeinlinewithlowermirror(2)adjusttopmirroruntilimageofmarkonruleiscentredonbottommirror,simple-andmucheaserandsaferthatusingalaser,musthave-nolaserlabshouldbewithoutatleastone,(1)ensurealloptics(lens,mirrors,etc)aresecurelyfastenedinthecorrectopticalmount(2)ensureallopticalmounts(postsetc)aresecurelyfastenedtotheopticaltable-notloosealwayskeeplaserbeamsparalleltotablesurfaceandpreferablyatonecommonheight(4)alwaysplacebeamstopsascloseasispracticaltoopticsinset-up(5)n
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