LAPPD2 Theory-Based Photocathode Godparent Review

Saturday 6 Apr 2013, 13:00 → 18:00 US/Central

A-224 (Argonne, Building 360)

Gary Varner (Univ. of Hawaii), Kathy Harkay (Argonne ASD)

13:00 → 13:15 Welcome & Introduction

13:00 Welcome, Context & Charge

13:20 → 15:50 High QE Cathode Development

13:20 Overview: Limiting Factors and Promising Areas

Speaker: Klaus Attenkofer (Brookhaven)

Slides Multi_alkali_challenges.pptx

13:50 Bialkali Chemistry & Stoichiometry

Speaker: Klaus Attenkofer (Brookhaven)

14:15 X-ray Diffraction & Other Measurements

Speaker: John Smedley (Brookhaven)

Slides LAPPD_review_talk.pptx

14:40 Computational Methods for Cathode Design

Speakers: Karoly Nemeth (IIT), Kathy Harkay (Argonne ASD)

Slides designHarkayNemeth-v4.pdf

15:05 Plasmonic Photo-Cathodes

Plasmonic arrays of Ag and Al nanoparticles can dramatically enhance the absorbance of any photocathode material making the photocathode more efficient and broadening the range of photocathode materials available for the designer.

Speaker: Mike Pellin (Argonne MSD)

Slides Plasmonic_Photocathodes_LAPPD.pptx

15:25 Emittance, Noise, QE Considerations: Making a List

Speaker: Discussion: Varner and Harkay (leaders)

15:50 → 16:05 Coffee Break

16:05 → 17:55 New Methods of Making Photocathodes: Cheaper, Faster, or More Robust

16:05 Sb Deposition & Cleaning by ALD

Speaker: Junqi Xie (Argonne HEPD)

Slides Development_of_Bialkali_Photocathode.pdf

Video GISAXS_Movie_during_Sb_growth.avi

16:25 External Alkali Introduction

Speakers: Matt Wetstein (UChicago), Razib Obaid (IIT)

Slides Alkali_introduction_on_MCPs.pdf

16:45 ALD-based Cathodes

Speaker: Anil Mane (Argonne ESD)

Slides ALD-based_Cathodes_GP_meeting-4-6-2013-final.pptx

17:05 III-V Cathodes & Sealing

Speaker: Jim Buckley (Washington Univ.)

Slides gan_update_godparent_april13.pdf

17:25 Questions to Be Decided & Drafting of Recommendations

What Material Resources & Funding Are Needed? What Expertise Is Needed? What's the Plan for the Next 6 Months

Speaker: Committee & Proponents