ES483579A1 - Isotopically selective photoionisation - Google Patents
Isotopically selective photoionisationInfo
- Publication number
- ES483579A1 ES483579A1 ES483579A ES483579A ES483579A1 ES 483579 A1 ES483579 A1 ES 483579A1 ES 483579 A ES483579 A ES 483579A ES 483579 A ES483579 A ES 483579A ES 483579 A1 ES483579 A1 ES 483579A1
- Authority
- ES
- Spain
- Prior art keywords
- ionization
- transition
- state
- isotopically selective
- transitions
- 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
- 230000007704 transition Effects 0.000 abstract 6
- 238000000034 method Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000003190 augmentative effect Effects 0.000 abstract 1
- 230000005281 excited state Effects 0.000 abstract 1
- 230000005283 ground state Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/34—Separation by photochemical methods
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electron Tubes For Measurement (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Apparatus and process for isotopically selective multistep photoionization in which the ionizing step is tuned to produce a specific transition to an excited state above ionization for which the ionization cross-section is substantially greater than for ionization transitions in general. The autoionization transition to an ionized state is made from a highly excited bound state reached in one or two isotopically selective energy jumps from the ground state or other low-lying levels. The isotope shift for the ionization transition is small compared to the bandwidth of the ionization transition and relatively broad band photoionization radiation covering the entire absorption line can be employed. A technique is also shown for identifying the ionization transitions of augmented cross-section.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86170077A | 1977-12-19 | 1977-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES483579A1 true ES483579A1 (en) | 1980-04-16 |
Family
ID=25336528
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES476145A Expired ES476145A1 (en) | 1977-12-19 | 1978-12-19 | Isotopically selective photoionisation |
| ES483579A Expired ES483579A1 (en) | 1977-12-19 | 1979-08-22 | Isotopically selective photoionisation |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES476145A Expired ES476145A1 (en) | 1977-12-19 | 1978-12-19 | Isotopically selective photoionisation |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5499898A (en) |
| AU (1) | AU524246B2 (en) |
| BE (1) | BE872873A (en) |
| CA (1) | CA1107232A (en) |
| DE (1) | DE2854909A1 (en) |
| ES (2) | ES476145A1 (en) |
| FR (1) | FR2412341A1 (en) |
| GB (1) | GB2011160A (en) |
| IT (1) | IT1106833B (en) |
| NL (1) | NL7812326A (en) |
| SE (1) | SE7813055L (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4320300A (en) * | 1979-09-28 | 1982-03-16 | Allied Chemical Corporation | Isotope separation by solar photoionization |
| JPS58153526A (en) * | 1982-03-10 | 1983-09-12 | Japan Atom Energy Res Inst | Separation of isotope by 3 photon absorption |
| US5316635A (en) * | 1992-05-22 | 1994-05-31 | Atomic Energy Of Canada Limited/Energie Atomique Du Canada Limitee | Zirconium isotope separation using tuned laser beams |
| US5527437A (en) * | 1994-08-19 | 1996-06-18 | Atomic Energy Of Canada Limited/Energie Atomique Du Canada Limitee | Selective two-color resonant ionization of zirconium-91 |
| RU2119816C1 (en) * | 1996-06-10 | 1998-10-10 | Василий Иванович Держиев | Method for separation of ytterbium isotopes |
| KR100927466B1 (en) * | 2005-09-08 | 2009-11-19 | 한국원자력연구원 | Ytterbium Isotope Separation Method |
| JP6868903B2 (en) * | 2015-12-17 | 2021-05-12 | 国立研究開発法人理化学研究所 | Palladium isotope even-odd separation ionization method and equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224699A (en) * | 1975-08-18 | 1977-02-24 | Hitachi Ltd | Uranium isotopic separation method |
-
1978
- 1978-12-18 CA CA318,103A patent/CA1107232A/en not_active Expired
- 1978-12-18 AU AU42621/78A patent/AU524246B2/en not_active Expired
- 1978-12-19 JP JP15841878A patent/JPS5499898A/en active Granted
- 1978-12-19 NL NL7812326A patent/NL7812326A/en not_active Application Discontinuation
- 1978-12-19 SE SE7813055A patent/SE7813055L/en unknown
- 1978-12-19 BE BE192403A patent/BE872873A/en unknown
- 1978-12-19 DE DE19782854909 patent/DE2854909A1/en not_active Withdrawn
- 1978-12-19 FR FR7835704A patent/FR2412341A1/en not_active Withdrawn
- 1978-12-19 GB GB7849039A patent/GB2011160A/en not_active Withdrawn
- 1978-12-19 IT IT52351/78A patent/IT1106833B/en active
- 1978-12-19 ES ES476145A patent/ES476145A1/en not_active Expired
-
1979
- 1979-08-22 ES ES483579A patent/ES483579A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2854909A1 (en) | 1979-07-05 |
| BE872873A (en) | 1979-04-17 |
| FR2412341A1 (en) | 1979-07-20 |
| IT7852351A0 (en) | 1978-12-19 |
| SE7813055L (en) | 1979-06-20 |
| ES476145A1 (en) | 1979-11-16 |
| NL7812326A (en) | 1979-06-21 |
| CA1107232A (en) | 1981-08-18 |
| AU524246B2 (en) | 1982-09-09 |
| AU4262178A (en) | 1979-06-28 |
| GB2011160A (en) | 1979-07-04 |
| JPS6325812B2 (en) | 1988-05-26 |
| JPS5499898A (en) | 1979-08-07 |
| IT1106833B (en) | 1985-11-18 |
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