GB724309A - Improvements relating to the electrical heating of irradiated specimens - Google Patents
Improvements relating to the electrical heating of irradiated specimensInfo
- Publication number
- GB724309A GB724309A GB7781/53A GB778153A GB724309A GB 724309 A GB724309 A GB 724309A GB 7781/53 A GB7781/53 A GB 7781/53A GB 778153 A GB778153 A GB 778153A GB 724309 A GB724309 A GB 724309A
- Authority
- GB
- United Kingdom
- Prior art keywords
- specimen
- aperture
- heater
- examined
- refractory
- 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
- 238000010438 heat treatment Methods 0.000 title abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 238000010894 electron beam technology Methods 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 238000005485 electric heating Methods 0.000 abstract 1
- 230000005670 electromagnetic radiation Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052715 tantalum Inorganic materials 0.000 abstract 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/02—Details
- H01J37/20—Means for supporting or positioning the object or the material; Means for adjusting diaphragms or lenses associated with the support
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
724,309. X-ray apparatus. GENERAL ELECTRIC CO. March 20, 1953 [March 22, 1952], No. 7781/53. Class 98 (1). [Also in Groups XI and XL (a)] An attachment for heating a specimen within apparatus in which the specimen is examined by a beam of radiant energy, i.e. electromagnetic radiation, e.g. X- rays, gamma rays and particles, e.g. electrons, protons, comprises a body of refractory material 11 having an aperture 12 extending therethrough to permit the passage of the beam and an electric heating element 27 and means 23 for holding the specimen 25 in heat transfer relation to the heater, both heater and holder being located within the aperture 12. The heater comprises a bifilar filament 29 supported on a post 30 eccentrically mounted on a refractory plate 31 carrying the leads 35 of the heater and the leads 37 of a thermocouple 36 measuring the temperature of the aperture 12. The heater extends into the upper part 28 of the aperture 12 in the cylindrical ceramic glass or quartz body 11. A thin metal liner 13 with a wife mesh top 14 extends into the lower part of the aperture below the heater and has a metal end flange 15 facilitating its removal. When the specimen 25 is to be examined by reflection of an electron beam, the upper edges of the specimen are pressed against shoulders 26 of the liner 13 by a leaf spring 24 pressing on the lower surface of the specimen and carried by a flanged tray 23 readily removable from the liner 13 forming an electrostatic shield in the aperture 12. The refractory body 11 is mounted within two "cylindrical radiation shields 16, 17 of tantalum or molybdenum to minimise heat loss by screws 19 engaging an end plate 20 on the inner shield 16. A tongued centrally apertured metal plate 33 is mounted on the outside of the refractory plate 31, which is attached to the cylindrical member 11 by screws 32. Centrally apertured end caps 38-41 further reduce heat loss. When a specimen is to be examined by transmission of an electron beam, it is mounted on a wire mesh 48 retained against a flange 49 of a Banged hollow cylindrical member 45 attached by a strap 46 to a base 42 carrying leaf springs 44 adapted to bear on the shoulders 26 of the lining 13. The specimen holder in a diffraction instrument is mounted on a manipulator with a rod as described in Specification 618,657, [Group XL (a)], which is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US277997A US2728840A (en) | 1952-03-22 | 1952-03-22 | Specimen heating means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB724309A true GB724309A (en) | 1955-02-16 |
Family
ID=23063253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7781/53A Expired GB724309A (en) | 1952-03-22 | 1953-03-20 | Improvements relating to the electrical heating of irradiated specimens |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2728840A (en) |
| GB (1) | GB724309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133930A (en) * | 1983-01-08 | 1984-08-01 | Canon Kk | Workpiece carriages |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1165780B (en) * | 1961-02-28 | 1964-03-19 | Siemens Ag | Electron microscope with a preparation adjustment table that is in particular not supported symmetrically to the beam axis |
| US3171955A (en) * | 1962-03-30 | 1965-03-02 | Rca Corp | Temperature controlled and adjustable specimen stage for scientific instruments |
| JPS6175227A (en) * | 1984-09-20 | 1986-04-17 | Nippon Kokan Kk <Nkk> | Temperature measuring apparatus for moving body |
| US6025592A (en) * | 1995-08-11 | 2000-02-15 | Philips Electronics North America | High temperature specimen stage and detector for an environmental scanning electron microscope |
| US7743506B2 (en) * | 2005-10-11 | 2010-06-29 | The Gillette Company | Heated shaving razors |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1144942A (en) * | 1914-06-24 | 1915-06-29 | John W Morsbach | Incubator for microscope-stages. |
| US1686051A (en) * | 1922-03-23 | 1928-10-02 | Westinghouse Electric & Mfg Co | Means for preventing explosions |
| US2234578A (en) * | 1938-06-30 | 1941-03-11 | Frank Dumur | Cooling chamber for microscopes |
| US2440472A (en) * | 1944-09-11 | 1948-04-27 | Belmont Radio Corp | Stage incubator for microscopes |
| US2417213A (en) * | 1944-12-28 | 1947-03-11 | Rca Corp | Device for indirect heating of materials |
| US2514382A (en) * | 1946-09-23 | 1950-07-11 | Friedman Herbert | High temperature device for X-ray diffraction |
| US2554902A (en) * | 1948-03-25 | 1951-05-29 | Nat Res Corp | Thermionic discharge device control |
| US2651236A (en) * | 1951-08-08 | 1953-09-08 | Kahler Herbert | Microtome specimen holder |
-
1952
- 1952-03-22 US US277997A patent/US2728840A/en not_active Expired - Lifetime
-
1953
- 1953-03-20 GB GB7781/53A patent/GB724309A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2133930A (en) * | 1983-01-08 | 1984-08-01 | Canon Kk | Workpiece carriages |
Also Published As
| Publication number | Publication date |
|---|---|
| US2728840A (en) | 1955-12-27 |
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