SPOT IL - Slow positron facility in Israel
A slow positron facility is being built in Israel, at the Hebrew University, for basic and applied research. It consists of a slow positron beam and a compact Positrons Annihilation Lifetime (PAL) spectrometer. The slow positron beam follows a traditional design, using a 22Na source, of about 40mCi,...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing
2021
|
| Online Access: | https://hdl.handle.net/1721.1/129627 |
| _version_ | 1826195264239566848 |
|---|---|
| author | Or, P. Dribin, D. Cohen, D. Erlichman, G. Cohen, E. Hen, Or Piasetzky, E. Sabo-Napadensky, I. Steinberg, H. Beck, S. May-Tal Ron, G. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Or, P. Dribin, D. Cohen, D. Erlichman, G. Cohen, E. Hen, Or Piasetzky, E. Sabo-Napadensky, I. Steinberg, H. Beck, S. May-Tal Ron, G. |
| author_sort | Or, P. |
| collection | MIT |
| description | A slow positron facility is being built in Israel, at the Hebrew University, for basic and applied research. It consists of a slow positron beam and a compact Positrons Annihilation Lifetime (PAL) spectrometer. The slow positron beam follows a traditional design, using a 22Na source, of about 40mCi, a Tungsten moderator and a unique grounded target cell, with positrons energy that can vary between 0.03 keV and 30 keV. The detection system will be comprised of High Purity Germanium and BaF2 detectors, facing each other, for low background Doppler Broadening (DB) measurements. The target cell is designed to allow a combined measurement of sample conductivity and DB, with the flexibility to add more detection options in the future. The compact PAL spectrometer includes two fast scintillation detectors read by a fast digitizer (DRS4), with a sampling rate of 5.12 GS/s. A dedicated software package was developed to emulate analogue data acquisition. Lifetime measurements were performed using a ∼25 μCi 22Na source. The time resolution was defined using a 60Co source, to be 180-200ps. First positron lifetime validation measurements of Ti resulted in positrons lifetime of 157 ± 4 ps, consistent with previously published values. |
| first_indexed | 2024-09-23T10:09:58Z |
| format | Article |
| id | mit-1721.1/129627 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:09:58Z |
| publishDate | 2021 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1296272022-09-26T16:11:15Z SPOT IL - Slow positron facility in Israel Or, P. Dribin, D. Cohen, D. Erlichman, G. Cohen, E. Hen, Or Piasetzky, E. Sabo-Napadensky, I. Steinberg, H. Beck, S. May-Tal Ron, G. Massachusetts Institute of Technology. Department of Physics A slow positron facility is being built in Israel, at the Hebrew University, for basic and applied research. It consists of a slow positron beam and a compact Positrons Annihilation Lifetime (PAL) spectrometer. The slow positron beam follows a traditional design, using a 22Na source, of about 40mCi, a Tungsten moderator and a unique grounded target cell, with positrons energy that can vary between 0.03 keV and 30 keV. The detection system will be comprised of High Purity Germanium and BaF2 detectors, facing each other, for low background Doppler Broadening (DB) measurements. The target cell is designed to allow a combined measurement of sample conductivity and DB, with the flexibility to add more detection options in the future. The compact PAL spectrometer includes two fast scintillation detectors read by a fast digitizer (DRS4), with a sampling rate of 5.12 GS/s. A dedicated software package was developed to emulate analogue data acquisition. Lifetime measurements were performed using a ∼25 μCi 22Na source. The time resolution was defined using a 60Co source, to be 180-200ps. First positron lifetime validation measurements of Ti resulted in positrons lifetime of 157 ± 4 ps, consistent with previously published values. 2021-02-02T16:52:07Z 2021-02-02T16:52:07Z 2019-12 2021-01-27T15:00:40Z Article http://purl.org/eprint/type/JournalArticle 978-0-7354-1929-2 https://hdl.handle.net/1721.1/129627 Or, P. et al. "SPOT IL - Slow positron facility in Israel." 18TH INTERNATIONAL CONFERENCE ON POSITRON ANNIHILATION (ICPA-18): Positron Annihilation Spectroscopy-Fundamentals, Techniques ad Applications, AIP Conference Proceedings, 2182, AIP Publishing, 2019, 040009. © 2019 Author(s) en http://dx.doi.org/10.1063/1.5135841 AIP Conference Proceedings Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf AIP Publishing Prof. Hen via Barbara Williams |
| spellingShingle | Or, P. Dribin, D. Cohen, D. Erlichman, G. Cohen, E. Hen, Or Piasetzky, E. Sabo-Napadensky, I. Steinberg, H. Beck, S. May-Tal Ron, G. SPOT IL - Slow positron facility in Israel |
| title | SPOT IL - Slow positron facility in Israel |
| title_full | SPOT IL - Slow positron facility in Israel |
| title_fullStr | SPOT IL - Slow positron facility in Israel |
| title_full_unstemmed | SPOT IL - Slow positron facility in Israel |
| title_short | SPOT IL - Slow positron facility in Israel |
| title_sort | spot il slow positron facility in israel |
| url | https://hdl.handle.net/1721.1/129627 |
| work_keys_str_mv | AT orp spotilslowpositronfacilityinisrael AT dribind spotilslowpositronfacilityinisrael AT cohend spotilslowpositronfacilityinisrael AT erlichmang spotilslowpositronfacilityinisrael AT cohene spotilslowpositronfacilityinisrael AT henor spotilslowpositronfacilityinisrael AT piasetzkye spotilslowpositronfacilityinisrael AT sabonapadenskyi spotilslowpositronfacilityinisrael AT steinbergh spotilslowpositronfacilityinisrael AT becksmaytal spotilslowpositronfacilityinisrael AT rong spotilslowpositronfacilityinisrael |