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 27):
The free electron laser of  claim 25 , wherein the beam path is configured to direct the upstream electron beam through each of the first and second linear accelerators more than once before the undulator and to direct the downstream electron beam through each of the second and first linear accelerators more than once before the beam dump.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 94.0
- Lexical Diversity: 3.375
- Patent Class: 372.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15502462', '15562729', '15035674', '16072385', '15789702']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.843362497494637
- 35 USC 102 Novelty (BERT): 0.5627326136331916
- Combined Prediction Score: 0.8152995091084925
- Mean Citation Score: 399.32407600000016
- Max Citation Score: 429.66586
- Similarity Product: 328.5904766551364

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

Dataset: test