Poster Presentations -preparing and presenting at your best- Malika Bell CfAO Summer, 2006

Why Posters?  Enables your individual input to a conference or meeting  Share your work  Network  Get feedback on your research  Develop your experience communicating in the scientific/technological world  Get travel award for a conference (travel free!!!)

A Successful Poster Presentation Demonstrates Enthusiasm – The Presenter and the Poster By Itself - Relevant to Audience – Do You Know Your Audience? Visually Appealing, But Not Too Busy Well Rehearsed Presentation Organized, Visually and Logically

What Goes on a Poster  Minimal Words  Introduction  Abstract (optional)  Methods  Results  Discussion or Summary  Acknowledgements  Your Style

Standard Flow Introduction Acknowledgements

Layout Show them your story Visuals rather than words What if you’re not there to present it?

Keep it Interesting

Preparing YOUR Poster

Preparation Get Details From the Conference Use Oral Presentation Slides Prioritize Information Design Your Layout

Font and Poster Size  Can you read it from 4 feet away?  Suggestions Basic font and symbolsBasic font and symbols Titles: 90 ptTitles: 90 pt Sub titles: 72 ptSub titles: 72 pt Other poster content: 18-20ptOther poster content: 18-20pt NEVER smaller than 14 pointNEVER smaller than 14 point  Ask conference people about size What size should my poster be?

Setting Up the Poster Slide Create a New PPT File - choose "blank presentation" upon opening program, or use "File" menu and choose "New..." Page Setup - choose "Page Setup..." in "File" menu Page Setup Dialog Box - set as below... "custom" 48" = 4 feet 36" = 3 feet don't worry about Page Settings

Notice that you are only looking at a 11% zoom of your poster This one slide is 3' X 4' You Now Have a Presentation with 1 Very Big Slide !! Looking at Your Poster Slide

MIRROR ALIGNMENT USING DUAL BEAM LASER Vinya Agluba, Smithsonian Astrophysical Observatory, Submillimeter Array, Hilo, HI SMA Optics Layout 170mm Methods A 6-meter diameter paraboloidal primary reflector is combined with a 350 mm diameter hyperboloidal sub reflector. Mirrors M3 through M6 form a beam waveguide which directs the beam from the antenna vertically downward into the receiver optics assembly. The goal of this project is to assemble a portable setup that would align the sub reflector and the beam waveguide mirrors. To align the mirrors, a dual beam laser is used. Because there are visible red beams at each end of the laser that are aligned to each other, it feasible to place this laser between mirrors M4 and M5 since there is a lot of space for the laser and a focal point is located. The mount for the laser is kinematic, it can be adjusted by its x-y-z axis and angle. M4 170mm M5 Align Mirrors Reduce Losses Achieve Maximum Efficiency -due to: beam truncation, distortion at focusing mirrors, and absorption and reflection at windows and mirrors 230GHz – GHz – GHz – 0.4 Since it would be hard for us to look for the laser beam propagated on the sub reflector, a video camera is installed on the vertex of the reflector. Mirror M4 is an ellipsoidal mirror. If the laser beam strikes this mirror, the beam would disperse. So, an aperture stop is placed after M4 to block the dispersion and still have a fine beam going to the sub reflector. The DS9 program is used to measure the amount of displacement of the laser beam on the sub reflector from the center as the antenna moves from different elevation. First Trial One end of the dual laser is placed right on the focal point of mirror M4, which is 170mm high from the plate to assure that the laser beam passes this critical point. Looking on the sub reflector, the laser beam is off the center and as the elevation of the antenna changes, it moved by 1-3 pixels. The laser beam on the sub reflector is still dispersed even though an aperture stop is already placed because the mirror M3 is too dusty that it had contributed to the dispersion of the laser beam. Antenna elevation: 20° Antenna elevation: 70° Second Trial Instead of positioning the laser 170mm high from the plate, the laser is placed such that the laser beam strikes the center of mirrors M4 and M6. Crosshairs are placed across the mirrors to show the center of the mirrors. Looking again at the sub reflector, the laser beam is off the center at an antenna elevation of 15°. But as the antenna elevation increases, the laser beam disappears as shown in the picture above with an elevation of 85°. This proves that the laser beam does not pass through the focal point (the laser beam was higher than 170mm) and thus, beam truncation could have occurred. Antenna elevation: 15°Antenna elevation: 85° Conclusion A portable setup is built to align the mirrors of the Submillimeter Array optics. It must be noted that the laser beam should pass through the focal point of mirror M4 so there would be no beam truncation that would occur. To assure the 170mm height, targets like shown on the picture on the left could be placed on both ends of the laser and one target is positioned right where the focal point is located. Acknowledgments: Rob Christensen, Research Supervisor SMA Staff Sarah Anderson, Malika Bell and Lisa Hunter, Center for Adaptive Optics University of Hawaii - Manoa This project is supported by the National Science Foundation Science and Technology Center for Adaptive Optics, managed by the University of California at Santa Cruz under cooperative agreement No. AST

Presenting Your Poster  Prepare and Rehearse 3-5 Minute Talk  Don’t Ramble  Avoid Reading  Enhance What is Already Written  Dress to Impress  Bring Resume or Business Cards

Your Poster at SACNAS  You never know who you will meet!  We’ll be there to support you  Graduate school and industry representative to meet  Poster Contest Winner $500

Poster Making Timeline For Hawaii Island July 5 Poster Presentation During Weekly Meeting July 10 Mini Poster Outline Due July 12 Go Over Poster Outlines During Meeting July 26 Work on Final Posters Due at End of Day

Mini Poster Outline  Due next weeks meeting  Sketch out the topics you’ll cover  Determine what existing slides you’ll use  Play around with formatting so we can answer questions next week