PATENT CLAIM ANALYSIS

Application Number: 16060792
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["372", "002000"]

Abstract:
A free electron laser FEL comprises an undulator  24  generating coherent EUV radiation receiving an upstream electron beam EB 2  and emitting a downstream electron beam EB 4  and at least an electron source  21 a,  21 b  operable to produce an upstream electron beam EB 1 , EB 2  comprising bunches of electrons. A beam path is configured to direct the upstream electron beam through: a linear accelerator system (LINAC) comprising at least a first and a second linear accelerators  22 a,  22 b , a bunch compressor  28 b , and said undulator  24 . The downstream electron beam EB 3 , EB 4  that leaves the undulator  24  recirculates through the second linear accelerator  22 b  in parallel with the upstream electron beam with a phase such that the downstream beam is decelerated by the second linear accelerator  22 b  and then recirculates through the first linear accelerator  22 a  in parallel with the upstream electron beam with a phase such that the downstream beam is decelerated by the first linear accelerator  22 a ; and to direct the downstream beam to a beam dump  100 . At least a first energy spreader  50 a,  50 b,  50 c  imparts a reversible change to the energy distribution of bunches of electrons and is located at a position in the beam path before the bunch compressor  28 b  and so that it is only passed through by the upstream electron beam EB 1 . A second energy spreader  50 d  reverses the change to the energy distribution of bunches of electrons imparted by the at least one first energy spreader  50 a,  50 b,  50 c , the second energy spreader  50 d  being located at a position in the beam path before the undulator  24  and so that it is only passed through by the upstream electron beam EB 2.

Claim (Index 32):
A free electron laser comprising:\n an electron source operable to produce an upstream electron beam comprising bunches of electrons; a beam path configured to direct the upstream electron beam through: a linear accelerator system, a bunch compressor, and an undulator so as to generate coherent radiation, configured to recirculate a downstream beam that leaves the undulator through the linear accelerator in parallel with the upstream electron beam with a phase such that the downstream beam is decelerated by the linear accelerator, and configured to direct the downstream beam to a beam dump; a de-chirper configured to remove chirp from bunches of electrons of the upstream beam; a washout device configured to shift a longitudinal position of electrons in the bunches of electrons of the upstream beam proportionally to their energy; a chirper configured to add chirp to the bunches of electrons of electrons of the upstream beam; and a compressor configured to compress the bunches of electrons.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 94.0
- Lexical Diversity: 3.375
- Patent Class: 372.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15502462', '15562729', '15035674', '16072385', '15789702']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8251702350068084
- 35 USC 102 Novelty (BERT): 0.5662637911932511
- Combined Prediction Score: 0.7992795906254527
- Mean Citation Score: 399.32407600000016
- Max Citation Score: 429.66586
- Similarity Product: 384.9813395253444

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test