4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires
Utilizing noninvasive 2D scans with laser wires, we tomographically reconstructed the 4D transverse phase space distribution of a 1-GeV hydrogen ion (i.e., H^{-}) beam during operation. The 4D tomography is based on two new advances. First, we extended the formulation of maximum entropy phase space...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-04-01
|
| Series: | Physical Review Accelerators and Beams |
| Online Access: | http://doi.org/10.1103/PhysRevAccelBeams.25.042801 |
| _version_ | 1818018081804386304 |
|---|---|
| author | Jonathan C. Wong Andrei Shishlo Alexander Aleksandrov Yun Liu Cary Long |
| author_facet | Jonathan C. Wong Andrei Shishlo Alexander Aleksandrov Yun Liu Cary Long |
| author_sort | Jonathan C. Wong |
| collection | DOAJ |
| description | Utilizing noninvasive 2D scans with laser wires, we tomographically reconstructed the 4D transverse phase space distribution of a 1-GeV hydrogen ion (i.e., H^{-}) beam during operation. The 4D tomography is based on two new advances. First, we extended the formulation of maximum entropy phase space tomography to take 2D projections as input and derived theoretical results relevant to our application. Second, we introduced the method of “perpendicular scans” to obtain cross-plane information from a laser wire emittance scanner. Perpendicular scans are two unconventional 2D measurements performed with perpendicular front and back wires. In contrast, only parallel front and back wires (i.e., “parallel scans”) are utilized in ordinary measurements of the horizontal and vertical 2D phase space distributions. When we applied the technique to the laser emittance station in the high-energy beam transport of the Spallation Neutron Source, experimental results showed that perpendicular scans can provide significant new information to the reconstructed 4D phase space distribution. |
| first_indexed | 2024-04-14T07:35:27Z |
| format | Article |
| id | doaj.art-023497f5b9074da4bbfd2c606e4e4f8f |
| institution | Directory Open Access Journal |
| issn | 2469-9888 |
| language | English |
| last_indexed | 2024-04-14T07:35:27Z |
| publishDate | 2022-04-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Accelerators and Beams |
| spelling | doaj.art-023497f5b9074da4bbfd2c606e4e4f8f2022-12-22T02:05:42ZengAmerican Physical SocietyPhysical Review Accelerators and Beams2469-98882022-04-0125404280110.1103/PhysRevAccelBeams.25.0428014D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wiresJonathan C. WongAndrei ShishloAlexander AleksandrovYun LiuCary LongUtilizing noninvasive 2D scans with laser wires, we tomographically reconstructed the 4D transverse phase space distribution of a 1-GeV hydrogen ion (i.e., H^{-}) beam during operation. The 4D tomography is based on two new advances. First, we extended the formulation of maximum entropy phase space tomography to take 2D projections as input and derived theoretical results relevant to our application. Second, we introduced the method of “perpendicular scans” to obtain cross-plane information from a laser wire emittance scanner. Perpendicular scans are two unconventional 2D measurements performed with perpendicular front and back wires. In contrast, only parallel front and back wires (i.e., “parallel scans”) are utilized in ordinary measurements of the horizontal and vertical 2D phase space distributions. When we applied the technique to the laser emittance station in the high-energy beam transport of the Spallation Neutron Source, experimental results showed that perpendicular scans can provide significant new information to the reconstructed 4D phase space distribution.http://doi.org/10.1103/PhysRevAccelBeams.25.042801 |
| spellingShingle | Jonathan C. Wong Andrei Shishlo Alexander Aleksandrov Yun Liu Cary Long 4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires Physical Review Accelerators and Beams |
| title | 4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires |
| title_full | 4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires |
| title_fullStr | 4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires |
| title_full_unstemmed | 4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires |
| title_short | 4D transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2D measurements using laser wires |
| title_sort | 4d transverse phase space tomography of an operational hydrogen ion beam via noninvasive 2d measurements using laser wires |
| url | http://doi.org/10.1103/PhysRevAccelBeams.25.042801 |
| work_keys_str_mv | AT jonathancwong 4dtransversephasespacetomographyofanoperationalhydrogenionbeamvianoninvasive2dmeasurementsusinglaserwires AT andreishishlo 4dtransversephasespacetomographyofanoperationalhydrogenionbeamvianoninvasive2dmeasurementsusinglaserwires AT alexanderaleksandrov 4dtransversephasespacetomographyofanoperationalhydrogenionbeamvianoninvasive2dmeasurementsusinglaserwires AT yunliu 4dtransversephasespacetomographyofanoperationalhydrogenionbeamvianoninvasive2dmeasurementsusinglaserwires AT carylong 4dtransversephasespacetomographyofanoperationalhydrogenionbeamvianoninvasive2dmeasurementsusinglaserwires |