Dr. Kazuki Hiraoka Profile

Dr. Kazuki Hiraoka

at Advanced Science Lab Inc

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 28 January 2019 Paper

Focusing an electron-beam array with a multi-hole permanent magnet

K. Hiraoka, K. Tsuno, T. Ando, K. Shimonomura, T. Etoh

Proceedings Volume 11051, 110510N (2019) https://doi.org/10.1117/12.2525291

KEYWORDS: Electron beams, Magnetism, Electrodes, Picosecond phenomena, Photography, Particles, Neodymium, High speed imaging, Temporal resolution

Read Abstract +

A simulation study was performed to confirm the technical feasibility of a magnetic lens consisting of a multi-hole permanent magnet to focus a two-dimensional electron beam array. The permanent magnetic lens has a simple structure, and its interference with the deflection electric field is low. In contrast to expectations, the magnetic field intensity is substantially flat in the central region of the multi-hole permanent magnet with a diameter of 6 mm. Only a slight nonuniformity is observed in the radial direction in this region. Although the outer edge of the magnet strongly distorts the intensity distribution in the peripheral region, the area of the influence is only 1 mm wide. The beam convergence rate in the uniform area is approximately 1/10 for a simple model, and 1/40 for an improved model. This technology is applicable to ultra-high-speed imaging with a temporal resolution of the order of picoseconds. The number of recorded signals is expected to be M2 with 1/M convergence with the deflection in two directions. Therefore, a speed-up of 1600 times is achievable.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years