2011 Particle Accelerator Conference - List of Authors (Zhou, J.)

Paper	Title	Page
MOP010	Resonance, Particle Stability, and Acceleration in the Micro-Accelerator Platform	121
	J.C. McNeur, J.B. Rosenzweig, G. Travish, J. Zhou UCLA, Los Angeles, USA R.B. Yoder Manhattanville College, Purchase, New York, USA
	Funding: US Defense Threat Reduction Agency A micron-scale dielectric-based slab-symmetric accelerator is currently being designed and fabricated at UCLA. This Micro-Accelerator Platform (MAP) accelerates electrons in a 800nm wide vacuum gap via a resonant accelerating mode excited by a side-coupled optical-wavelength laser. Detailed results of particle dynamics and field simulations are presented. In particular, we examine various methods of achieving net acceleration and particle stability. Additionally, structural designs that produce accelerating fields synchronous with both relativistic and sub-relativistic electrons are discussed.

MOP086	Fabrication of a Prototype Micro-Accelerator Platform	259
	J. Zhou, J.C. McNeur, G. Travish UCLA, Los Angeles, USA R.B. Yoder Manhattanville College, Purchase, New York, USA
	Funding: Work supported by U.S. Defense Threat Reduction Agency, Grant no. HDTRA1-09-1-0043. The Micro-Accelerator Platform is a laser powered particle acceleration device made from dielectric materials. Its main building blocks, distributed Bragg reflectors and nanoscale coupling slots are fabricated using cutting-edge nanofabrication techniques. In this report, a prototype device will be presented, and technical details with fabrication will be discussed. Optical property of the DBR films is measured by ellipsometry, and film surface roughness is measured using profilometer. In addition, a few remaining challenges with manufacture of this device will be discussed.

MOP141	Design, Fabrication and Characterization of a Micron-scale Electron Source Based on Field Enhanced Pyroelectric Crystals	352
	H. Badakov, J.M. Allen, N.S. Carranza, G. Travish, J. Zhou UCLA, Los Angeles, USA E.R. Arab PBPL, Los Angeles, USA R.B. Yoder Manhattanville College, Purchase, New York, USA
	As a part of the Micro-Accelerator Platform (MAP) project, an electron source with a sub-micron size emitter is required. It is also desired that the source produces electrons with energies above the structure's minimum capture energy (about 25 keV) without the use of an external power supply. Field enhanced emission backed by field generation in pyroelectric crystals has been explored for this application. Here we present experimental progress towards characterization of electron, and x-ray emission. Purpose built diagnostics and specialized test assembly for optimized heat transmission are discussed.

Paper

Title

Page

Resonance, Particle Stability, and Acceleration in the Micro-Accelerator Platform

121

J.C. McNeur, J.B. Rosenzweig, G. Travish, J. Zhou
UCLA, Los Angeles, USA
R.B. Yoder
Manhattanville College, Purchase, New York, USA

Funding: US Defense Threat Reduction Agency
A micron-scale dielectric-based slab-symmetric accelerator is currently being designed and fabricated at UCLA. This Micro-Accelerator Platform (MAP) accelerates electrons in a 800nm wide vacuum gap via a resonant accelerating mode excited by a side-coupled optical-wavelength laser. Detailed results of particle dynamics and field simulations are presented. In particular, we examine various methods of achieving net acceleration and particle stability. Additionally, structural designs that produce accelerating fields synchronous with both relativistic and sub-relativistic electrons are discussed.

MOP086

Fabrication of a Prototype Micro-Accelerator Platform

259

J. Zhou, J.C. McNeur, G. Travish
UCLA, Los Angeles, USA
R.B. Yoder
Manhattanville College, Purchase, New York, USA

Funding: Work supported by U.S. Defense Threat Reduction Agency, Grant no. HDTRA1-09-1-0043.
The Micro-Accelerator Platform is a laser powered particle acceleration device made from dielectric materials. Its main building blocks, distributed Bragg reflectors and nanoscale coupling slots are fabricated using cutting-edge nanofabrication techniques. In this report, a prototype device will be presented, and technical details with fabrication will be discussed. Optical property of the DBR films is measured by ellipsometry, and film surface roughness is measured using profilometer. In addition, a few remaining challenges with manufacture of this device will be discussed.

MOP141

Design, Fabrication and Characterization of a Micron-scale Electron Source Based on Field Enhanced Pyroelectric Crystals

352

H. Badakov, J.M. Allen, N.S. Carranza, G. Travish, J. Zhou
UCLA, Los Angeles, USA
E.R. Arab
PBPL, Los Angeles, USA
R.B. Yoder
Manhattanville College, Purchase, New York, USA

As a part of the Micro-Accelerator Platform (MAP) project, an electron source with a sub-micron size emitter is required. It is also desired that the source produces electrons with energies above the structure's minimum capture energy (about 25 keV) without the use of an external power supply. Field enhanced emission backed by field generation in pyroelectric crystals has been explored for this application. Here we present experimental progress towards characterization of electron, and x-ray emission. Purpose built diagnostics and specialized test assembly for optimized heat transmission are discussed.