Monolithic integration of high-efficiency UV photocathodes on large-area microchannel plates for high spatial and temporal resolution particle detection

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0018567
Agency Tracking Number: 0000233148
Amount: $150,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 30a
Solicitation Number: DE-FOA-0001770
Solicitation Year: 2018
Award Year: 2018
Award Start Date (Proposal Award Date): 2018-04-09
Award End Date (Contract End Date): 2019-01-08
Small Business Information
2500 University Ave- W-,, B9, Saint Paul, MN, 55114-1741
DUNS: 009757611
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Amir Dabiran
 (612) 386-3349
Business Contact
 Amir Dabiran
Phone: (612) 386-3349
Research Institution
Reliable, high-sensitivity and high-resolution photon detectors, which can alleviate major limitations imposed by photomultiplier tubes (PMTs), for future high energy physics (HEP) and nuclear physics (NP) experiments, are of great interest to DOE- Other fields that could greatly benefit from these detectors include Cherenkov telescopes in astrophysics, positron emission tomography (PET) in medical imaging, space and planetary explorations, solar-blind UV missile tracking, and other scientific, industrial and military applications- For many of these applications, a photocathodes (PC) in conjunctions with a micro- channel plate (MCP) have been considered as a lower cost, less bulky and more robust alternative to PMTs- However, for detection of low level or fast transient signals, thestandardgeometry phototube with a separate semi-transparent PC positioned above a MCP stack does not have the required efficiency and/or spatial and temporal resolutions- This proposal is directed toward the application of an innovative metallic buffer for deposition of high- quality III-nitride based photocathode structures directly on operational MCPs- If successfully developed, the close proximity of the PC and MCP in addition to the operation in opaque (reflection) mode, will result in significant improvements in both detection efficiency and spatial and temporal resolution- The proposed metallic buffer for high quality deposition of III-N PCs on MCPs will also act as a mirror to reflect the unabsorbed light back into the PC layer to increase efficiency, as well as providing an effective backside metal contact to avoid charging effects, especially in large diameter detectors-

* Information listed above is at the time of submission. *

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