US3331961A - Linear particle accelerators - Google Patents

Linear particle accelerators Download PDF

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Publication number
US3331961A
US3331961A US218226A US21822662A US3331961A US 3331961 A US3331961 A US 3331961A US 218226 A US218226 A US 218226A US 21822662 A US21822662 A US 21822662A US 3331961 A US3331961 A US 3331961A
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United States
Prior art keywords
separating means
accelerator
sections
energy level
particle
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Expired - Lifetime
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US218226A
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English (en)
Inventor
Leboutet Hubert
Jean Roger
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Thales SA
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CSF Compagnie Generale de Telegraphie sans Fil SA
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H9/00—Linear accelerators
    • H05H9/02—Travelling-wave linear accelerators

Definitions

  • the present invention relates to linear accelerators for charged particles and, more particularly, to such accelerators in which the particles have velocities close to that of light and carry energies of relatively high level or value.
  • the present invention essentially consists of improvements realized with these accelerators, principally with a view toward facilitating the adjustment and control thereof.
  • the present invention aims at rendering it possible for the same installation to simultaneously furnish a beam of high energy particles and one or more lower energy beams.
  • a linear chargedparticle accelerator which is composed of a number of rectilinear sections, dispose-d one behind the other, is characterized by the following arrangementsvand features taken alone or in combination:
  • a magnetic particle separator preferably having four deilecting magnets, is interposed between each pair of consecutive sections;
  • the magnetic separators are provided with lateral bifurcations or' branches ⁇ which permit the injection thereat of an auxiliary particle beam upstream of each accelerator section and the extraction of this auxiliary beam downstream of the same section; and/ or (3) means are disposed in each separator for permitting the analysis and measurement of the intensity of the beams.
  • Still a further object of the present invention resides in the provision of a linear particle accelerator which greatly facilitates operating adjustments to be'made for proper operation thereof.
  • Another object of the present invention resides in the provision of a linear accelerator capable of simultaneously handling a plurality of beams of differing energy levels.
  • reference numeral 1 designates therein one of the rectilinear sections of which any suitable desired number thereof constitute a high energy level linear particle accelerator.
  • Section 1 is connected with the preceding accelerator section 1 by a magnetic separator comprising magnets 2, 3, 4 and 5, and to the nextfollowing section 1" by a similar separator comprising magnets 2', 3, 4 and 5.
  • The'magnetic separators are preferably of the type described in the U.S. Patent No. 3,031,596, is-sued in the name of H. P. Leboutet et al. on Apr. 24, 1962, and assigned to the same assignee as the present application. Reference is made, therefore, to this patent and particularly to FIGURE 3 thereof for the description of the separators utilized in the present arrangement.
  • Such arrangement permits the injection into branch line 6 of an auxiliary particle beam of lower energy level than the main beam traversing the field of magnet 4, and the subsequent extraction of this auxiliary beam into the branch line 6' where the auxiliary beam separates from the main beam deflected by 'the magnet 2.
  • the arrangement according to the present invention additionally comprises, in each magnetic separator, beamanalyzing and intensity-measuring apparatus, indicated schematically in the single figure herein by reference numerals 7, 7 and 8, 8.
  • beamanalyzing and intensity-measuring apparatus indicated schematically in the single figure herein by reference numerals 7, 7 and 8, 8.
  • the adjustments and the control of the accelerator according to the present invention may be made, section'by section, with the aid of particle beams of low energy level; ln fact, once the adjustments have been made with relatively'low energy levels separately for all of the sections, the installation is also perfectly regulated ing to the presentinvention to supply for utilization onel or several beams of'relatively low or very low energy level, at the same time as the main beam of high energy of the' accelerator, which increases thepossibilities as well as protableness of the installation.
  • a charged-particle linear accelerator comprising at least three physically separated accelerator sections, a plurality of separating means for separating the particles of a relatively high energy level particle beam in accordance with their energy levels and operatively connecting adjoining sections, said separating means being operatively inserted into at least two successive separations between two accelerator sections, means for injecting a inserted into at least two successive separations between adjoining accelerator sections, means including a derivation duct forv injecting a relatively W energy level particle beam in a first one of said separating means, and means including a derivation duct for extracting said relatively low energy levelbeam from a second one of said separating means which is located downstream with respect to said rst separating means along the normal charged particle path.
  • a charged-particle linear accelerator comprising a least three physically separated accelerator sections, a plu- ⁇ rality of separating means for separating the particles of a relatively high energy level particle beam in accordance with their energy levels and operatively connecting adjoining sections, said separating means being operatively inserted into at least two successive separations between two accelerator sections, means for injecting a relatively 10W energy level particle beam in a first one of said separating means, means fory extracting said .relatively low ⁇ energy level particle beam in a second one'of said separating means which is located downstream with respect to4 said rst separating means along the normal charged particle path, and detecting means operatively associated with said separating means for measuring the intensity of the charged particle beam moving through a respective separating means.
  • a charged particle linear accelerator comprising at least .three physically separated accelerator sections, 'a plurality of separating means vfor the particles of a relatively high energy level particle beam in accordance With their energy levels operatively connecting adjoining sections, said separating means being operatively inserted into at least two successive separations between adjoining accelerator sections, means including a derivation duct forv injecting a relatively low energylevel particle beam in a iirst one of said separating means, means including a derivation duct for extracting said relatively low yenergy level beam from a second one of saidvseparating means which is located downstream with respect to said first separating means along .the normal charged particle path, and detecting means associated with at least one of said derivation ducts formeasuring the intensity of said relatively low energy level beam.
  • a charged-particle linear accelerator comprising at least three physically separated accelerator sections, a plurality of separating means ⁇ 'for separating the particles of a relatively high energy level particle beam in accordance with their energy levels and operatively connecting 4 adjoining sections, said separating means being operatively inserted into at least two separations between .two accelerator sections, means for injecting ⁇ ⁇ a relatively low energy level particle beam in a first one of said separating means, and means for extracting said relatively low energy level particle beam in a second one of said separating means which is located downstream with respect to said first separating means 'along the normal charged particle path.
  • separating means for separating the particles in accordance with their energy levels and operatively -connecting successive ones of said sections, and means for injecting a rst,.rel'a tively high energy levelbeam into ⁇ the accelerator, .the
  • separating means operable to separate the particles in accordance with their energy levels and operatively connecting successive ones of said sections, and means for injecting into said accelerator a first beam of charged particles
  • the improvement essentially consisting of means operativelyr associated wtih one of said separating means ⁇ for injecting ⁇ a second charged particle beam having yan energy level different from said iirst beam, and second means operatively associated with another separating means located downstreamv with respect to said one separating means along .ther
  • a charged particle linear accelerator comprising a series of straight tubular sections and 'a plurality of- References Cited UNITED STATES PATENTS 2,957,985 10/1960 Brubaker 250--4l.9 2,979,635 4/1961 Burleigh 3l5-5.42 Xy 3,040,173 6/1962 Higatsberger S15- 5.42 X 3,209,269 f 9/1965 Julian et al 313-,-63 X HERMAN KARL SAALBACH, Primary Examiner.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Particle Accelerators (AREA)
  • Electron Tubes For Measurement (AREA)
  • Measurement Of Radiation (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
US218226A 1961-09-27 1962-08-17 Linear particle accelerators Expired - Lifetime US3331961A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR874287A FR1311234A (fr) 1961-09-27 1961-09-27 Perfectionnements aux accélérateurs linéaires de particules

Publications (1)

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US3331961A true US3331961A (en) 1967-07-18

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US218226A Expired - Lifetime US3331961A (en) 1961-09-27 1962-08-17 Linear particle accelerators

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US (1) US3331961A (en))
BE (1) BE620891A (en))
CH (1) CH398811A (en))
DE (1) DE1182369B (en))
FR (1) FR1311234A (en))
GB (1) GB967115A (en))

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571642A (en) * 1968-01-17 1971-03-23 Ca Atomic Energy Ltd Method and apparatus for interleaved charged particle acceleration
US4780682A (en) * 1987-10-20 1988-10-25 Ga Technologies Inc. Funnel for ion accelerators
DE3830478A1 (de) * 1987-09-21 1989-07-13 Leybold Ag Kathodenzerstaeubungsvorrichtung
US4885070A (en) * 1988-02-12 1989-12-05 Leybold Aktiengesellschaft Method and apparatus for the application of materials

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2957985A (en) * 1958-06-05 1960-10-25 Cons Electrodynamics Corp Mass spectrometers
US2979635A (en) * 1959-07-15 1961-04-11 Richard J Burleigh Clashing beam particle accelerator
US3040173A (en) * 1957-06-06 1962-06-19 Oesterr Studien Atomenergie Method for separating electrically charged particles
US3209269A (en) * 1961-06-27 1965-09-28 Julian Frederick Arthur Linear accelerators of tandem type

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1205220A (fr) * 1958-03-13 1960-02-01 Csf Séparateur magnétique d'électrons de différentes énergies dans le sein d'un faisceau électronique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040173A (en) * 1957-06-06 1962-06-19 Oesterr Studien Atomenergie Method for separating electrically charged particles
US2957985A (en) * 1958-06-05 1960-10-25 Cons Electrodynamics Corp Mass spectrometers
US2979635A (en) * 1959-07-15 1961-04-11 Richard J Burleigh Clashing beam particle accelerator
US3209269A (en) * 1961-06-27 1965-09-28 Julian Frederick Arthur Linear accelerators of tandem type

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3571642A (en) * 1968-01-17 1971-03-23 Ca Atomic Energy Ltd Method and apparatus for interleaved charged particle acceleration
DE3830478A1 (de) * 1987-09-21 1989-07-13 Leybold Ag Kathodenzerstaeubungsvorrichtung
US4780682A (en) * 1987-10-20 1988-10-25 Ga Technologies Inc. Funnel for ion accelerators
US4885070A (en) * 1988-02-12 1989-12-05 Leybold Aktiengesellschaft Method and apparatus for the application of materials

Also Published As

Publication number Publication date
DE1182369B (de) 1964-11-26
BE620891A (en))
CH398811A (fr) 1966-03-15
GB967115A (en) 1964-08-19
FR1311234A (fr) 1962-12-07

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