Bibliographic Details
| Title: |
Improvement of Fresnel zone plate beam-profile monitor and application to ultralow emittance beam profile measurements |
| Authors: |
Hiroshi Sakai, Masami Fujisawa, Kensuke Iida, Isao Ito, Hirofumi Kudo, Norio Nakamura, Kenji Shinoe, Takeo Tanaka, Hitoshi Hayano, Masao Kuriki, Toshiya Muto |
| Source: |
Physical Review Special Topics. Accelerators and Beams, Vol 10, Iss 4, p 042801 (2007) |
| Publisher Information: |
American Physical Society, 2007. |
| Publication Year: |
2007 |
| Collection: |
LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| Subject Terms: |
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| More Details: |
We describe the improvements of a Fresnel zone plate (FZP) beam-profile monitor, which is being developed at the KEK-ATF damping ring to measure ultralow emittance electron-beam profiles. This monitor, which is designed to have a submicrometer spatial resolution, is based on x-ray imaging optics composed of two FZPs. Various improvements were performed to the old setup. First, a new crystal monochromator was introduced to suppress the beam image drift. Second, the two FZP folders were improved in order to realize a precise beam-based alignment during x-ray imaging. Third, a fast mechanical shutter was installed to achieve a shorter time resolution, and an x-ray mask system was also installed to obstruct direct synchrotron radiation through the FZPs. These improvements could make beam-profile measurements more precise and reliable. The beam profiles with less than 50 μm horizontal beam size and less than 6 μm vertical beam size could be measured within a 1 ms time duration. Furthermore, measurements of the damping time and the coupling dependence of the ATF damping ring were successfully carried out with this upgraded FZP monitor. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1098-4402 |
| Relation: |
https://doaj.org/toc/1098-4402 |
| DOI: |
10.1103/PhysRevSTAB.10.042801 |
| Access URL: |
https://doaj.org/article/bde5879ee10145a38933ee07265ed296 |
| Accession Number: |
edsdoj.bde5879ee10145a38933ee07265ed296 |
| Database: |
Directory of Open Access Journals |
