US3600580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charged particle beam density measurement device
Assignee: United States Atomic Energy Commission
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Filing: 1969-09-22
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Granted: 1971-08-17
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Expires: 1989-09-22
Abstract
Abstract Apparatus for measuring the location and intensity profile of a charged particle beam by moving a wire with high velocity, in a plane, transversely through the beam, whereby the wire spills a small portion of the beam for accurately generating signals from the spilled portion of the beam corresponding to the location and the density profile of the beam.
Inventors
- 👤 Uriel Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:47
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/29
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
208 words
Apparatus for measuring the density of a beam of charged particles in a high energy accelerator having means for transporting said charged particles along an equilibrium axis, and means forming an evacuated enclosure for containing said beam of charged particles, comprising means in said enclosure having a longitudinally extending wire, an actuator for rapidly flipping said wire transversely through said beam with a sudden, selective, incremental jerk in said enclosure, whereby said wire interacts with a small, selective portion of said charged particles in said beam in accordance with the density profile of said beam for producing a small, corresponding, beam spill of reaction products that diverges from said beam of charged particles in said enclosure, and means for the detection of said reaction products in said beam spill having a scintillation crystal for effecting the production of light in said scintillation crystal in accordance with the interaction of said crystal with said reaction products produced in said beam spill as a result of the interaction of said wire with said charged particles in said beam as said charged particles are transported along said equilibrium axis, whereby said light produced in said crystal provides a selective measure of the density profile of the charged particles in said beam.
Claim 2
Dependent Claim
208 words
Apparatus for measuring the density of a beam of charged particles in a high energy accelerator having means for transporting said charged particles along an equilibrium axis, and means forming an evacuated enclosure for containing said beam of charged particles, comprising means in said enclosure having a longitudinally extending wire, an actuator for rapidly flipping said wire transversely through said beam with a sudden, selective, incremental jerk in said enclosure, whereby said wire interacts with a small, selective portion of said charged particles in said beam in accordance with the density profile of said beam for producing a small, corresponding, beam spill of reaction products that diverges from said beam of charged particles in said enclosure, and means for the detection of said reaction products in said beam spill having a scintillation crystal for effecting the production of light in said scintillation crystal in accordance with the interaction of said crystal with said reaction products produced in said beam spill as a result of the interaction of said wire with said charged particles in said beam as said charged particles are transported along said equilibrium axis, whereby said light produced in said crystal provides a selective measure of the density profile of the charged particles in said beam.
Claim 3
Dependent Claim
47 words
The invention of claim 1 in which said actuator flips said wire through said beam at a velocity sufficient to minimize its interaction with the beam of charged particles by cutting only less than 10 percent of the particles from out of said beam of charged particles.
Claim 4
Dependent Claim
57 words
The invention of claim 1 in which said actuator flips said wire in a plane transversely through said beam of charged particles at a predetermined angle to said axis and at a controlled velocity, abruptly stops said wire velocity, and reactuates said flipping of said wire through said beam in the reverse direction to complete a cycle.
Claim 5
Dependent Claim
46 words
The invention of claim 1 in which said actuator has means, comprising a rotatable motor shaft, and a linkage connected to said shaft and said wire for flipping said wire transversely through said beam at a velocity faster than the angular velocity of said motor shaft.
Claim 6
Dependent Claim
124 words
The invention of claim 1 in which said actuator, comprises: a. a motor having first linkage means for flipping said wire in a plane through a predetermined angle at a rapid velocity, and means for selectively stopping the further movement of said wire after said wire passes through said beam of charged particles; b. crank means connected to said first linkage means at a point spaced from said motor; and c. second linkage means coupling said crank means to a second wire for flipping said second wire transversely through said beam of charged particles at a correspondingly rapid velocity to said first wire for producing successive beam spills for successive detection thereof along the equilibrium axis of said beam at a point spaced therefrom.
References Cited (Backward Citations)
US3207982A
Cited
US3370171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |