Bunched electron cooling

Author: fnfo

August undefined, 2024

WebMotivation for applying electron cooling for the bunching process • Recent studies showed that for minimal momentum spread which can be achieved in ELENA p/p =2.5·10-4 (Gerard Tranquille) beam capture and compression to get required bunch length 4 l = 1.3m can be made fast, approximately within 50 msec (Steve Hancock). Webbunched ion beam cooling process, in which the electron cooling, intrabeam scattering (IBS), ion beam space-charge field, transverse and synchrotron motion are considered. …

Electron cooling - Wikipedia

WebIn the design, two facilities are required for supporting a multi-staged cooling scheme; one is a 2 MeV DC cooler in the ion pre-booster; the other is a high electron energy (up to 55 MeV) ERL-circulator cooler in the collider ring. WebJun 11, 2024 · A natural approach of accelerating electron beam to high energies is RF acceleration and thus the use of bunched electron beam cooling [10]. Several experiments in HIRFL-CSRm in the collaboration between IMP and JLab have demonstrated that bunched electron beams can be used to cool ion beams [11], [12], [13]. The … thunderball results for 13th october 2021

Top-10 Science and Technology Achievements of 2024

WebThe U.S. Department of Energy's Office of Scientific and Technical Information WebFeb 21, 2024 · Electron beams with kinetic energies of 1.6 and 2.0 MeV with a beam quality suitable for cooling were successfully propagated through 100 m of beam lines, including dispersion sections,... Webcooling process of bunched ion beam, a simulation code was developed, in which the electron cooling, IBS and space charge effect are considered, and simulation of elec … thunderball results for 14th december 2022

Demonstration of electron cooling using a pulsed beam from an ...

(PDF) Advance in MEIC cooling studies - Academia.edu

WebJun 11, 2024 · In CSRm, an experiment of bunched beam cooling using a flat distributed electron bunch with phase modulation was tested. We observed the cooling of the ion beam as well as a serious beam loss caused by the space charge force from the electron … A magnet system of the cooler EC-35 consists of cooling section solenoid, two … The most important facilities of the ring are various complementary cooling devices … The stochastic cooling for COSY [3] is designed for proton momenta between … Further injections, followed by cooling and stacking, take place until the number of … WebJun 11, 2024 · We have demonstrated the cooling of bunched ion beam by a bunched electron beam with phase modulation. Due to the large space charge effect at low … thunderball results for 12th november 2022WebThe electron source and dump are installed in the upper metallic cylinders. Electron cooling is a method to shrink the emittance (size, divergence, and energy spread) of a … thunderball results for 13th november 2021

"WebFeb 2, 2024 · Abstract. A combination of electron cooling and rf system is an effective method to compress the beam bunch length in storage rings. A simulation code … " - Bunched electron cooling

Bunched electron cooling

Emittance growth caused by phase modulation in bunched electron …

WebFeb 2, 2024 · A simulation code based on multiparticle tracking was developed to calculate the bunched ion beam cooling process, in which the electron cooling, intrabeam … WebJan 6, 2024 · The researchers modified a traditional dc electron cooler so that it delivered a pulsed beam. They found that the bunched electron …

Did you know?

WebApr 25, 2024 · To achieve 2 h cooling time, the CeC system needs to operate with a high current beam of 100 mA and up to 150 MeV energy, and electron bunches as long as 14 mm to overlap the hadron bunches. Such an electron beam can only be … WebJan 6, 2024 · Electron beam at cooling channel in a few to tens MeV can be accelerated by a RF/SRF linac, and thus using bunched electrons to cool bunched ions. To study …

WebJun 5, 2024 · Electrons have successfully cooled bunches of ions in these cooling sections of the Relativistic Heavy Ion Collider (RHIC). Brookhaven’s accelerator team is testing the method at the collider’s … WebNov 7, 2024 · Magnetized bunched-beam electron cooling could be a means to achieve the required high luminosity, where strong cooling is accomplished inside a cooling …

WebIt has been recently proposed a scheme to produce a high-intensity antiproton beam in a precooler ring with functions of both stochastic cooling and accumulating. According to this scheme 13... WebMay 28, 2024 · The new “bunched-beam” electron cooling system keeps RHIC’s ion beams tightly packed together, especially at low energy levels. This bunching increases the chances that the ions will …

WebA combination of electron cooling and RF system is an effective method to compress the beam bunch length in storage rings. A simulation code based on multi-particle tracking was developed to calculate the bunched ion beam cooling process, in which the electron cooling, Intra-Beam Scattering (IBS), ion beam space charge field, transverse

WebApr 4, 2024 · In this scenario, all the electrons are "bunched" in a coherent length scale. Ioka estimated that the ratio between the coherent cooling length scale and the radius r is about 0.15 and this constant is not dependent on other parameters. It means that electron cooling has a very short cooling timescale in a very short cooling distance. thunderball results for 14th october 2022WebUntil now, all electron cooling systems used DC electron beams. LEReC is first electron cooler which employs RF acceleration of electron bunches [2]. Such a scheme of cooling with a bunched electron beam is a natural approach for high-energy electron cooling which requires RF accel-eration. As such, LEReC is also a prototype for future high- thunderball results for 14th january 2023Webcooler provides a bunched electron beam of 420 pC/bunch. The current, or the electron number per bunch, is limited by the capability of the cathode an d the instabil-ity due to the collective effect during beam transport. There are two competing factors to obtain the highest cooling rate with a bunched electron beam. One factor is thunderball results for 14th september 2022Web2024. Ring-based electron cooler for high energy beam cooling. H Zhao, J Kewisch, M Blaskiewicz, A Fedotov. Physical Review Accelerators and Beams 24 (4), 043501. , 2024. 12. 2024. Longitudinal electron cooling experiments at HIRFL-CSRe. LJ Mao, H Zhao, XD Yang, J Li, JC Yang, YJ Yuan, VV Parkhomchuk, ... thunderball results for 15th december 2021WebBunched electron beam cooling January 11, 2012 4 Fig. 4. Longitudinal (green) and transverse (blue and red) ion bunch profiles after 900 s of cooling at 40 GeV/n gold ions beam energy with electron bunch charge of 0.75 nC (peak current of 90 A), rms normalized emittance of 1.3 m and parameters given in Table 1. ... thunderball results for 16 april 2022WebOct 29, 2024 · While electron cooling is a mature technology at low energy utilizing a DC beam, RF acceleration requires the cooling beam to be bunched, thus extending the parameter space to an unexplored territory. thunderball results for 16th october 2021WebMay 1, 2010 · Recent advances in muon cooling [2] have the promise of muon emittances that are compatible with the 1300 MHz accelerating structures that are the basis for the ILC design. In the design described here, H{sup -} ions are accelerated to 8 GeV in the superconducting Linac, then stripped, stored and bunched in a ring while more » the … thunderball results for 1st october 2022