US3784909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picosecond beam monitor
Assignee: United States Atomic Energy Commission
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Filing: 1973-01-23
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Granted: 1974-01-08
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Expires: 1993-01-23
Abstract
Abstract Current in the beam of a particle accelerator is monitored with picosecond resolution by causing the beam to impinge upon the center conductor of a coaxial line, generating a pulse of electromagnetic energy in response thereto. This pulse is detected by means such as a sampling oscilloscope.
Inventors
- 👤 D Schutt
- 👤 G Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:15
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/29
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
A detector of the intensity of a beam of charged particles comprising: a section of coaxial transmission line having a hole in an outer conductor; a stopping block mounted to accept said beam of charged particles, said stopping block coupled electrically and mechanically to said outer conductor of said transmission line, further said stopping block having a hole aligned with said hole in said outer conductor of said transmission line to form a straight passage intercepting the inner conductor of said transmission line to permit said charged particles to impinge upon said inner conductor and generate a pulse of electromagnetic energy in said transmission line in response thereto; and detecting means connected electrically to an end of said transmission line to detect and display said electrical signal, which signal is a measure of the intensity of said beam of charged particles.
Claim 2
Dependent Claim
141 words
A detector of the intensity of a beam of charged particles comprising: a section of coaxial transmission line having a hole in an outer conductor; a stopping block mounted to accept said beam of charged particles, said stopping block coupled electrically and mechanically to said outer conductor of said transmission line, further said stopping block having a hole aligned with said hole in said outer conductor of said transmission line to form a straight passage intercepting the inner conductor of said transmission line to permit said charged particles to impinge upon said inner conductor and generate a pulse of electromagnetic energy in said transmission line in response thereto; and detecting means connected electrically to an end of said transmission line to detect and display said electrical signal, which signal is a measure of the intensity of said beam of charged particles.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 comprising in addition a resistive termination connected electrically tO a first end of said section of coaxial transmission line.
Claim 4
Dependent Claim
20 words
The apparatus of claim 1 wherein said detecting means are connected electrically to both ends of said coaxial transmission line.
Claim 5
Dependent Claim
55 words
The apparatus of claim 2 wherein said coaxial transmission line comprises a pair of rigid coaxial conducting elements supported physically and insulated electrically from each other by wafers of solid dielectric near the ends of said transmission line and insulated electrically from each other by air along the rest of the length of said line.
Claim 6
Dependent Claim
13 words
The apparatus of claIm 4 wherein said detecting means comprise a sampling oscilloscope.
Claim 7
Dependent Claim
56 words
The apparatus of claim 5 wherein said detecting means comprise in addition a signal averager connected electrically and operationally to said sampling oscilloscope and a plotter connected electrically to said signal averager and oscilloscope to prepare a plot of an averaged sampled signal, which signal is proportional to the intensity of said beam of charged particles.
Claim 8
Independent Claim
80 words
A method of viewing the intensity of a beam of charged particles comprising: disposing a coaxial transmission line having a hole in an outer conductor in said beam so as to cause said beam to impinge upon the inner conductor of said transmission line and generate an electrical signal in response thereto; detecting said electrical signal; and generating a visual signal having the form of said electrical signal, which visual signal provides a view of the intensity of said beam.
Claim 9
Independent Claim
80 words
A method of viewing the intensity of a beam of charged particles comprising: disposing a coaxial transmission line having a hole in an outer conductor in said beam so as to cause said beam to impinge upon the inner conductor of said transmission line and generate an electrical signal in response thereto; detecting said electrical signal; and generating a visual signal having the form of said electrical signal, which visual signal provides a view of the intensity of said beam.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |