Bunch length compression method for free electron lasers to avoid parasitic compressions

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Quick Facts

Patent No.: US 9,040,936
App. No.: 14/503,499
Granted: May 26, 2015
Kind: B1

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Abstract

A method of bunch length compression method for a free electron laser (FEL) that avoids parasitic compressions by 1) applying acceleration on the falling portion of the RF waveform, 2) compressing using a positive momentum compaction (R 56 >0), and 3) compensating for aberration by using nonlinear magnets in the compressor beam line.

Claims (7)

1. A method for compressing the bunch length of a free electron laser (FEL) comprising:

a. providing an FEL including an RF waveform with a falling portion;

b. applying acceleration on the falling portion of the RF waveform;

c. compressing using a positive momentum compaction (R 56 >0); and

d. applying aberration compensation.

2. The method of claim 1 wherein the aberration compensation is applied by one or more nonlinear magnets in a compressor beam line.

3. The method of claim 1 wherein the aberration compensation is applied by one or more sextupole magnets in a compressor beam line.

Assignments (4)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2018

From: LOS ALAMOS NATIONAL SECURITY, LLC

To: TRIAD NATIONAL SECURITY, LLC