GB854474A - Improvements in or relating to magnetic separator devices for electron beams - Google Patents

Improvements in or relating to magnetic separator devices for electron beams

Info

Publication number
GB854474A
GB854474A GB8817/59A GB881759A GB854474A GB 854474 A GB854474 A GB 854474A GB 8817/59 A GB8817/59 A GB 8817/59A GB 881759 A GB881759 A GB 881759A GB 854474 A GB854474 A GB 854474A
Authority
GB
United Kingdom
Prior art keywords
sector
magnets
electrons
linear
energies
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8817/59A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB854474A publication Critical patent/GB854474A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/44—Energy spectrometers, e.g. alpha-, beta-spectrometers
    • H01J49/46—Static spectrometers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
    • H01J29/845—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection by means of magnetic systems

Abstract

854,474. Mass separators, linear particle accelerators. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 13, 1959 [March 13, 1958 ; Jan. 20, 1959], No. 8817/59. Class 39(1). A beta-ray magnetic separator for analysing the output of a linear electron accelerator 1, consists of three sector shaped magnets 5, 6 and 7, Fig. 1, or of four rectangular magnets disposed in two pairs 27, 28 and 29, 30, Fig. 3, so arranged that electrons having relatively lower energies follow longer paths than electrons having higher energies. In Fig. 1 the first sector 5 converts the beam 14 into a divergent beam, the second sector 6 transforms the divergent beam into a convergent beam and the final sector 7 restores the beam to a cylindrical shape. The successive bunches of high and low energies which are produced may then be acted upon by a second linear accelerator 18 so as to produce finally an accelerated beam of monoenergetic electrons. The relation- 'ship between the spacing of the sectors and the radius and angle of a sector are shown in the Figure. Suitable values for α are specified in the description. In Fig. 3, the two pairs of magnets 27, 28 and 29, 30 are symmetrically arranged with respect to the plane 16, the directions of the field in each magnet being indirected at B. The magnets may be adjustable in position or may have adjustable faces. The electron beam need not be cylindrical in shape.
GB8817/59A 1958-03-13 1959-03-13 Improvements in or relating to magnetic separator devices for electron beams Expired GB854474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1177749X 1958-03-13

Publications (1)

Publication Number Publication Date
GB854474A true GB854474A (en) 1960-11-16

Family

ID=9660382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8817/59A Expired GB854474A (en) 1958-03-13 1959-03-13 Improvements in or relating to magnetic separator devices for electron beams

Country Status (3)

Country Link
DE (1) DE1177749B (en)
FR (1) FR1205220A (en)
GB (1) GB854474A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE620891A (en) * 1961-09-27

Also Published As

Publication number Publication date
DE1177749B (en) 1964-09-10
FR1205220A (en) 1960-02-01

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