GB889751A - Apparatus for separating charged particles - Google Patents
Apparatus for separating charged particlesInfo
- Publication number
- GB889751A GB889751A GB42507/59A GB4250759A GB889751A GB 889751 A GB889751 A GB 889751A GB 42507/59 A GB42507/59 A GB 42507/59A GB 4250759 A GB4250759 A GB 4250759A GB 889751 A GB889751 A GB 889751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ions
- electrodes
- field
- length
- charged particles
- 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
Links
- 239000002245 particle Substances 0.000 title abstract 2
- 150000002500 ions Chemical class 0.000 abstract 6
- 238000004458 analytical method Methods 0.000 abstract 1
- 238000007872 degassing Methods 0.000 abstract 1
- 238000010981 drying operation Methods 0.000 abstract 1
- 230000005684 electric field Effects 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000004304 visual acuity Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/10—Ion sources; Ion guns
- H01J49/102—Ion sources; Ion guns using reflex discharge, e.g. Penning ion sources
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
889,751. Mass spectrometers. SIEMENSSCHUCKERTWERKE A.G. Dec. 14, 1959 [Dee. 12, 1958], No. 42507/59. Class 39(1) The high-frequency mass spectrometer described in Specification 773,689 in which charged particles oscillate in stable and unstable paths in a time varying electric field of hyperbolic distribution as they travel between longitudinal, e.g. four cylindrical, electrodes which set up the required field, is adapted for use at relatively high gas pressures, e.g. up to 10<SP>-2</SP> mm. Hg., by providing a cold ion source 2 which operates in accordance with Penning's oscillating electron principle, and by making the ion drift space, i.e. the length of the electrodes 4, comparable in dimensions to the length of the mean free path of the ions at the operating pressure. In order to obtain sufficient mass resolution it is arranged that the ions enter the ion drift space at a velocity such that the number of possible oscillations of the ions in the field is at least 3.5 times the square root of the required resolving power. The apparatus may be used for carrying out gas analyses or for the observation of degasification, drying operations and gas leakage in vacuum apparatus.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE889751X | 1958-12-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB889751A true GB889751A (en) | 1962-02-21 |
Family
ID=6834689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42507/59A Expired GB889751A (en) | 1958-12-12 | 1959-12-14 | Apparatus for separating charged particles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB889751A (en) |
-
1959
- 1959-12-14 GB GB42507/59A patent/GB889751A/en not_active Expired
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