| Title |
Observations of Optical Synchrotron Radiation from Ultra-low Charges Stored in a Ring Operating at 425 MeV |
| Authors |
- A.H. Lumpkin
AAI/ANL, Lemont, Illinois, USA
- K.P. Woottonpresenter
ANL, Lemont, Illinois, USA
|
| Abstract |
The initial observations of optical synchrotron radiation (OSR) emitted over millions of passes from a few electrons circulating in the Particle Accumulator Ring (PAR) at the Advanced Photon Source have been done with a digital CMOS camera and a synchroscan streak camera operating at 117.3 MHz. The discrete changes of integrated counts in the CMOS image region of interest are ascribed to single electron steps at ~3500 cts per electron. Circulations of a single electron at 375 MeV and at 425 MeV were demonstrated in the 12-bit digital FLIR USB3 camera images. The Hamamatsu C5680 streak camera operating at the 12th harmonic of the fundamental revolution frequency at 9.77 MHz was used to measure the zero-current bunch length from 0.5 nC circulating charge down to 10s of electrons or <10 aC. The latter cases were performed with 6-ps temporal resolution for the first time anywhere, to our knowledge. We report a preliminary effective bunch length of 276 ± 36 ps for 57 electrons (9.1 aC) stored based on a fit to a single Gaussian peak. The results will be compared to the standard zero-current model for the ring.
|
| Funding |
This research used resources of the Advanced Photon Source, operated for the U.S. Department of Energy Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. |
| Paper |
download TUPP18.PDF [0.988 MB / 5 pages] |
| Poster |
download TUPP18_POSTER.PDF [0.558 MB] |
| Export |
download ※ BibTeX
※ LaTeX
※ Text/Word
※ RIS
※ EndNote |
| Conference |
IBIC2020 |
| Series |
International Beam Instrumentation Conference (9th) |
| Location |
Santos, Brazil |
| Date |
14-18 September 2020 |
| Publisher |
JACoW Publishing, Geneva, Switzerland |
| Editorial Board |
Daniel Tavares (LNLS, Campinas, Brazil); Renan Picoreti (LNLS, Campinas, Brazil); Gustavo Bruno (LNLS, Campinas, Brazil); Sergio Marques (LNLS, Campinas, Brazil); Volker R.W. Schaa (GSI, Darmstadt, Germany) |
| Online ISBN |
978-3-95450-222-6 |
| Online ISSN |
2673-5350 |
| Received |
31 August 2020 |
| Accepted |
18 September 2020 |
| Issue Date |
30 October 2020 |
| DOI |
doi:10.18429/JACoW-IBIC2020-TUPP18 |
| Pages |
61-65 |
| Copyright |
 Published by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |
|
