JPS55142984A - Vacuum exhauster - Google Patents
Vacuum exhausterInfo
- Publication number
- JPS55142984A JPS55142984A JP5036279A JP5036279A JPS55142984A JP S55142984 A JPS55142984 A JP S55142984A JP 5036279 A JP5036279 A JP 5036279A JP 5036279 A JP5036279 A JP 5036279A JP S55142984 A JPS55142984 A JP S55142984A
- Authority
- JP
- Japan
- Prior art keywords
- chevron
- liquid helium
- radiation heat
- cryopanel
- heat absorber
- 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.)
- Pending
Links
Abstract
PURPOSE: To minimize the heat of radiation transmitted to liquid helium and reduce the consumption of the liquid helium by making the chevron surface facing a cryopanel side such a surface that no radiation heat absorber is coated in order to practically maximize its reflection factor.
CONSTITUTION: Of four chevron surfaces provided vertically and before and behind of the channel parts 28 of the chevron baffle 20, only the surface 30A facing the cryopanel 12 side is polished for finishing so as to obtain a mirror state having a maximum reflection factor, and the other three chevron surfaces 30 are coated with a black paint as a radiation heat absorber. Thus, the external radiation heat QF is reflected at the chevron surface 30 at each stage and absorbed by the black paint as a radiation heat absorber each time it is reflected, whereby no heating of the liquid helium occurs due to its arrival to the cryopanel 12. Thus, the consumption of expensive liquid helium can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5036279A JPS55142984A (en) | 1979-04-25 | 1979-04-25 | Vacuum exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5036279A JPS55142984A (en) | 1979-04-25 | 1979-04-25 | Vacuum exhauster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55142984A true JPS55142984A (en) | 1980-11-07 |
Family
ID=12856773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5036279A Pending JPS55142984A (en) | 1979-04-25 | 1979-04-25 | Vacuum exhauster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55142984A (en) |
-
1979
- 1979-04-25 JP JP5036279A patent/JPS55142984A/en active Pending
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