JPS6448884A - Cryogenic cooling medium - Google Patents
Cryogenic cooling mediumInfo
- Publication number
- JPS6448884A JPS6448884A JP62204894A JP20489487A JPS6448884A JP S6448884 A JPS6448884 A JP S6448884A JP 62204894 A JP62204894 A JP 62204894A JP 20489487 A JP20489487 A JP 20489487A JP S6448884 A JPS6448884 A JP S6448884A
- Authority
- JP
- Japan
- Prior art keywords
- liq
- cooling medium
- superconductor
- nitrogen
- carbon tetrafluoride
- 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.)
- Granted
Links
Abstract
PURPOSE:To enable a high temp. superconductor to be maintained in a superconducting state even when the superconductor undergoes a high thermal load, by adding liq. carbon tetrafluoride to a cryogenic cooling medium used for a high temp. superconductor and composed of liq. nitrogen. CONSTITUTION:Liq. nitrogen is mixed with liq. carbon tetrafluoride to produce a cryogenic cooling medium. A pref. mixing ratio is such that the vol. ratio of liq. nitrogen to liq. carbon tetrafluoride is about 9:1. In the use of this cooling medium, a high temp. superconductor 1 is placed in a low temp. vessel 2, a mixed cooling medium 12 prepared by mixing liq. nitrogen 6 with liq. carbon tetrafluoride 9 is introduced into the low temp. vessel 2 so as to cool the high temp. superconductor 1 to such an extent that a superconducting state is attained, and an electric current is passed from a power source 4 to form a superconducting magnet. In this case, since the mixed cooling medium 12 maintains a nucleate boiling state even when it undergoes a thermal load of, e.g., 20W/cm<2> or above, it is possible to maintain the superconductor 1 in a superconducting state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62204894A JP2559755B2 (en) | 1987-08-18 | 1987-08-18 | Cryogenic cooling medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62204894A JP2559755B2 (en) | 1987-08-18 | 1987-08-18 | Cryogenic cooling medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6448884A true JPS6448884A (en) | 1989-02-23 |
| JP2559755B2 JP2559755B2 (en) | 1996-12-04 |
Family
ID=16498160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62204894A Expired - Lifetime JP2559755B2 (en) | 1987-08-18 | 1987-08-18 | Cryogenic cooling medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2559755B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2323145A1 (en) | 2002-10-31 | 2011-05-18 | Mitsubishi Chemical Corporation | Electrolytic solution for electrolytic capacitor and electrolytic capacitor as well as method for preparing an organic onium tetrafluoroaluminate |
-
1987
- 1987-08-18 JP JP62204894A patent/JP2559755B2/en not_active Expired - Lifetime
Non-Patent Citations (2)
| Title |
|---|
| IZV.VYSSH.UCHEBN.ZAVED.=1985 * |
| KHIM.NEFT.MASHINOSTR=1984 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2323145A1 (en) | 2002-10-31 | 2011-05-18 | Mitsubishi Chemical Corporation | Electrolytic solution for electrolytic capacitor and electrolytic capacitor as well as method for preparing an organic onium tetrafluoroaluminate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2559755B2 (en) | 1996-12-04 |
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