GB1191520A - Improvements in Devices Having a Variable Width Slit or Aperture. - Google Patents

Improvements in Devices Having a Variable Width Slit or Aperture.

Info

Publication number
GB1191520A
GB1191520A GB5872167A GB5872167A GB1191520A GB 1191520 A GB1191520 A GB 1191520A GB 5872167 A GB5872167 A GB 5872167A GB 5872167 A GB5872167 A GB 5872167A GB 1191520 A GB1191520 A GB 1191520A
Authority
GB
United Kingdom
Prior art keywords
aperture
slit
dec
supporting
devices
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
GB5872167A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1191520A publication Critical patent/GB1191520A/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
    • H01J49/02—Details
    • H01J49/025—Detectors specially adapted to particle spectrometers
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/04—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using variable diaphragms, shutters, choppers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

1,191,520. Mass spectrometers. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 27 Dec., 1967 [30 Dec., 1966], No. 58721/67. Heading H1D. An adjustable slit for a mass spectrometer comprises a circular diaphragm 1 containing a central circular aperture 2 and supporting a fixed rectangular blade 3, the diaphragm also supporting a pair of bearings (not shown) for a pivot rod 6 which carries a second rectangular blade 7. The blades have bevelled edges which are accurately parallel to each other and to a diameter of the aperture 2, and in the position shown the edges overlap by 5 microns. When the rod 6 is rotated the slit is opened to a width determined by the angle of rotation. The parts are preferably made of stainless steel so that the device may be heated to 250‹ C. for out-gassing.
GB5872167A 1966-12-30 1967-12-27 Improvements in Devices Having a Variable Width Slit or Aperture. Expired GB1191520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR89582A FR1516896A (en) 1966-12-30 1966-12-30 Improvements to slit devices with adjustable width, in particular for passage of particle beams

Publications (1)

Publication Number Publication Date
GB1191520A true GB1191520A (en) 1970-05-13

Family

ID=8623233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5872167A Expired GB1191520A (en) 1966-12-30 1967-12-27 Improvements in Devices Having a Variable Width Slit or Aperture.

Country Status (5)

Country Link
BE (1) BE708258A (en)
DE (1) DE1648881A1 (en)
FR (1) FR1516896A (en)
GB (1) GB1191520A (en)
NL (1) NL6717864A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4891515A (en) * 1987-01-30 1990-01-02 Vg Instruments Group Limited Solution analyzing mass spectrometer
WO2004079754A1 (en) * 2003-02-28 2004-09-16 Osmic, Inc. X-ray optical system with adjustable convergence

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604935A1 (en) * 1986-02-17 1987-08-20 Siemens Ag DIRECTION WITH CONTINUOUSLY CHANGEABLE, EFFECTIVE DIRECTION OPENING FOR DIFFERENTIAL MEASURING DEVICES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4891515A (en) * 1987-01-30 1990-01-02 Vg Instruments Group Limited Solution analyzing mass spectrometer
WO2004079754A1 (en) * 2003-02-28 2004-09-16 Osmic, Inc. X-ray optical system with adjustable convergence
US7245699B2 (en) 2003-02-28 2007-07-17 Osmic, Inc. X-ray optical system with adjustable convergence

Also Published As

Publication number Publication date
DE1648881A1 (en) 1971-05-13
BE708258A (en) 1968-06-20
NL6717864A (en) 1968-07-01
FR1516896A (en) 1968-02-05

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees