| Paper |
Title |
Page |
| FRX01 |
Recent Developments and Experimental Results From Electron Cooling of a 2.4 GeV/c Proton Beam at COSY |
72 |
| |
- P.J. Niedermayer, A.J. Halama, V. Kamerdzhiev, N. Shurkhno, R. Stassen
FZJ, Jülich, Germany
- T. Katayama
Nihon University, Narashino, Chiba, Japan
- V.B. Reva
BINP SB RAS, Novosibirsk, Russia
|
|
| |
The COSY control system as well as other subsystems are being upgraded. The 2 MeV electron cooler was recently extended with the EPICS control system and thereby integrated into the control and data acquisition system of the Cooler Synchrotron COSY. Taking advantages of the new software capabilities, studies of transverse and longitudinal magnetized electron cooling of a proton beam at 2.4 GeV/c were carried out. Electron and stochastic cooling were combined to reduce the cooling time while achieving lowest possible emittance and momentum spread. Results from experiments are discussed including cooling dynamics during operation of an internal cluster-jet target designed for the PANDA experiment at HESR. We present the results of probing the electron velocity distribution by means of the strongly cooled beam itself. The shape of the measured distibution may be caused by the galloping/scalloping effects within the electron beam. This effect plays a significant role in the strong dependence of the longitudinal and transverse electron cooling process on the proton beam size. Also discussed are the technical developments, achievements and further plans regarding the control system upgrade.
|
|
|
Slides FRX01 [4.424 MB]
|
|
| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-COOL2019-FRX01
|
|
| About • |
paper received ※ 21 September 2019 paper accepted ※ 18 October 2019 issue date ※ 01 November 2019 |
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |
| TUPS18 |
Phase Step Method for Friction Force Measurement in Filter Stochastic Cooling |
119 |
| |
- I.V. Gorelyshev, A.O. Sidorin
JINR/VBLHEP, Dubna, Moscow region, Russia
- V.V. Filimonov, A.V. Shemchuk
JINR, Dubna, Moscow Region, Russia
- I.V. Gorelyshev, A.O. Sidorin
Saint Petersburg State University, Saint Petersburg, Russia
- N. Shurkhno, R. Stassen
FZJ, Jülich, Germany
|
|
| |
Voltage step method for friction force measurement in electron cooling is well known. The similar method for friction force measurement in longitudinal stochastic cooling with comb filter is provided. First test of the method during the run at COSY has been implemented.
|
|
|
Poster TUPS18 [0.750 MB]
|
|
| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-COOL2019-TUPS18
|
|
| About • |
paper received ※ 06 October 2019 paper accepted ※ 21 October 2019 issue date ※ 01 November 2019 |
|
| Export • |
reference for this paper using
※ BibTeX,
※ LaTeX,
※ Text/Word,
※ RIS,
※ EndNote (xml)
|
|
| |