PATENT CLAIM ANALYSIS

Application Number: 16143949
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["250", "503100"]

Abstract:
Abeam shaping assembly for neutron capture therapy includes a beam inlet, a target having nuclear reaction with an incident proton beam from the beam inlet to produce neutrons forming a neutron beam defining a main axis, a moderator adjoining to the target, a reflector surrounding the moderator, a thermal neutron absorber adjoining to the moderator, a radiation shield arranged inside the beam shaping assembly and a beam outlet. The neutrons are moderated to epithermal neutron energies. The reflector leads the neutrons deviated from the main axis back, and a gap channel is arranged between the moderator and the reflector. The thermal neutron absorber is used for absorbing thermal neutrons so as to avoid overdosing in superficial normal tissue during therapy. The radiation shield is used for shielding leaking neutrons and photons so as to reduce dose of the normal tissue not exposed to irradiation.

Claim (Index 4):
The beam shaping assembly for neutron capture therapy according to  claim 1 , wherein an epithermal neutron energy range ranges from 0.5 eV to 40 keV, a thermal neutron energy range is below 0.5 eV, and a fast neutron energy range is above 40 keV, and the beam shaping assembly reduces the quantity of thermal neutrons and fast neutrons; and wherein the moderator is made of a material having a cross section for principally acting with fast neutrons but hardly acting with epithermal neutrons, the reflector is made of a material having a high neutron reflection ability.

Metadata:
- Claim Count in Document: 27.0
- Percentile: 97.0
- Lexical Diversity: 2.09459
- Patent Class: 250.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15825690', '15970001', '14705811', '14705784', '15704495']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8658343119559361
- 35 USC 102 Novelty (BERT): 0.677453939573448
- Combined Prediction Score: 0.8469962747176872
- Mean Citation Score: 678.8831680000002
- Max Citation Score: 691.6729
- Similarity Product: 686.8479489366888

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

Dataset: test