Conveners
WG1
- Oleg Shevchenko (BINP)
WG1
- Junji Urakawa (KEK)
WG1
- Oleg Shevchenko (BINP)
To carry out experiments on X-ray flash radiography, a high power linear induction accelerator (LIA) was developed at the Budker Institute of Nuclear Physics. This report describes the main systems of the accelerator and its main parameters. The results of modeling the beam dynamics in the injector and linear accelerator are presented. The simulation is compared to the experimental data. An...
The Australian synchrotron has recently completed a conceptual design for upgrading the facility to a 4th generation light source.This talk will outline the design options that were explored and the proposed benefits for the facility.
Small-scale accelerator-based radiation sources have been used for developing advanced technologies and exploring new science with high convenience and low cost. We have developed a 3 MeV ultrafast electron diffraction (UED) probe technology that nominally reduces the electron bunch duration and the arrival time jitter to the sub-femtosecond level. This simple configuration uses a...
An Infrared Free Electron Laser (IR-FEL) has been built at RRCAT, Indore to serve as a user facility for the optical spectroscopy of materials in low temperature and high magnetic field environment. The first commissioning experiments on the IR-FEL setup were performed in 2016 with an injector system built in-house. The first observation of lasing using this setup was made in November 2016,...
The report presents data on superconducting wigglers, which were made in Budker INP for various synchrotron radiation (SR) centers, their main parameters are given. Main parameters of superconducting undulator manufactured for SR DLS source are discussed. Other types of superconducting undulators based on the same key element - a superconducting magnetic element with horizontal racetrack coils...
Since the spectral quality from cryogenic permanent magnet undulators (CPMUs) can be superior to that of in-vacuum undulators (IVUs), a PrFeB-based CPMU with a period length of 15 mm has been constructed for the Taiwan Photon Source (TPS) to provide high brilliant X-rays. Two cryo-coolers, each with a cooling capacity of 200W at 80 K, provide high temperature stability in the presence of...
A high-performance electron source is required for a stable operation of an electron accelerator and future colliders. For this purpose, the electron beam is generated in an RF photocathode-based electron gun by irradiating the photocathode with laser light. Typically, a few tens of femtosecond laser systems are routinely used to generate a pre-bunched electron beam of a few hundred...
NEA (Negative Electron Affinity) activated GaAs cathode is an unique device which can generate highly spin polarized electron beam. Because the NEA activation surface has a limited robustness, it is compatible only with a DC biased gun under an extremely good vacuum condition in order of 1e-10 Pa. We propose to improve the robustness by NEA activation with a stable semiconductor thin film. We...
The feasibility of beam injection process using a pulsed multipole kicker (PMK) magnet as a case study for the storage ring of high brilliance synchrotron radiation source (HBSRS) is investigated. For the HBSRS, the beam emittance of 150 pm rad at the beam energy of 6 GeV is considered assuming 7 bend achromatic (7MBA) type lattice configuration. The PMK magnet provides transparent top up...
We are developing relatively large 2D 4-mirror optical cavity to reduce the crossing angle between electron bunch train and laser pulse train. Total length of first 2D 4-mirror optical cavity is 7.56m and it includes 9 laser pulse train to realize the crossing angle of 8 degrees between electron beam in Linear accelerator and the laser pulse train in the optical cavity [1]. Second 2D 4-mirror...
The compact THz-FEL facility, based on the RF photocathode electron gun, is under the commissioning stage at Inter University Accelerator Centre (IUAC), New Delhi. Once operational, it will be the first pre-bunched FEL facility in India and will be among the few in the world [1,2]. The complete accelerator facility will be ~ 5 meters long and will deliver intense THz radiation as well as an...
The High Energy Photon Source (HEPS) is a 34-pm, 1360-m storage ring light source being built in the suburb of Beijing, China. The construction of the HEPS started in mid-2019.In this report we will introduce the construction status of the HEPS, and especially discuss the progress of the physics design and studies on the accelerator.
A hard X-ray engineering application beamline (BL-02) was commissioned recently and started operation in March 2019 at Indian synchrotron storage ring Indus-2. This beamline is capable to operate in various beam modes viz; white beam, pink beam and monochromatic beam. The beamline utilizes X-ray diffraction technique in energy dispersive and angle dispersive modes to carry out experiments...
Indus-1 and Indus-2 are electron storage ring based synchrotron radiation sources at RRCAT. Lately few upgrades and additions have been carried out for some of the pulse sources in Indus-2. In this talk, these upgrades / additions to pulse sources in Indus-2 will be discussed. Pulse sources to energise Indus-2 Injection kicker magnets are working in the machine for last 15 years. These pulse...
