Mr. He Liu Profile

He Liu

at Shanghai Institute of Applied Physics

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 | 27 March 2022 Paper

Calculation of undulator section wakefield at the SHINE

He Liu, Hanxiang Yang, Haixiao Deng, Bo Liu

Proceedings Volume 12169, 121691B (2022) https://doi.org/10.1117/12.2622215

KEYWORDS: Free electron lasers, Hard x-rays, Light sources, X-rays, X-ray lasers, Synchrotron radiation

Read Abstract +

The wakefield is always an important issue in a free electron laser (FEL) facility. A longitudinal wakefield could lead to an energy spread of an electron bunch, and a transverse wakefield could lead to a deterioration in quality of an electron bunch. As a result, the performance of the FEL will be decreased under these impacts. Due to the discontinuous structures and the resistive wall of the chambers in the undulator section, the wakefield is ineluctable. The Shanghai high-repetition-rate XFEL and extreme light facility (SHINE) is under construction with three undulator lines as planned. These three lines have the similar framework, thus we consider the first undulator line (FEL-I) as a representation. FEL-I contains 40 undulators and many other devices in the inner segments between undulators which might generate a strong wakefield. In this paper, we give the theoretical and simulation results of the resistive wall wakefield in the vacuum chambers. In addition, the simulation result of geometry wakefields and the overall undulator section wakefield are given, which is as strong as predicted. Lasing simulations with and without wakefield are also given to show the impact of the wakefield. In order to counteract the damage to the FEL performance caused by the wakefield, we employ an undulator tapering scheme and the simulation result shows a great performance.

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