SAP2023 - List of Keywords (linac)

Paper	Title	Other Keywords	Page
MOPB035	Beam Dynamics Study of a Photo-Injector at Wuhan Light Source	emittance, gun, cathode, laser	79
	Z.Y. Dai, Y. Chen, J.B. Guan, J.H. He, Z. Hui, H.H. Li, L.X. Liu, Z.S. Liu, Y. Nie, J. Wang, J.H. Zhong, W. Zhou, Y. Zou IAS, Wuhan City, People’s Republic of China H.C. Shi Zhejiang University, Institute for Fusion Theory and Simulation, Hangzhou, People’s Republic of China
	A photo-injector is under development at Wuhan Light Source (WHLS) to provide beams for the 1.5 GeV storage ring proposed as a fourth-generation synchrotron radiation light source and a future free electron laser (FEL) facility. The photo-injector and the following LINAC will be able to produce electron beams with low emittance (<2 mm·mrad), high bunch charge (~1 nC), small energy spread (<0.5%) , and short bunch length, which meet the requirements of the ring injection and the FEL operation simultaneously. The injector boosts the bunch energy to 100 MeV, which is mainly composed of a photocathode RF gun working at 2998 MHz, two solenoid coils for emittance compensation, and two 3-meter-long 2998 MHz traveling-wave (TW) accelerator units. Beam dynamics optimization of the photo-injector is presented in detail, which has been performed with multi-objective genetic algorithm (MOGA) combining theoretical analysis and ASTRA code. After optimization, the 95% projected transverse emittance has reached as low as 0.45 mm·mrad with an RMS bunch length of about 1.0 mm at a bunch charge of 1 nC.
	Poster MOPB035 [2.643 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-SAP2023-MOPB035
About •	Received ※ 28 June 2023 — Accepted ※ 11 July 2023 — Issued ※ 12 November 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPB010	Dynamics Design on 70-250Mev Proton Linac	proton, acceleration, lattice, radiation	102
	Y.F. Yang, Z. Li, P.T. Lin, Z.Q. Ren, X.M. Wan SCU, Chengdu, People’s Republic of China
	Charged proton beams have broad application prospects, and research on compact S-band proton linear accelerators is increasingly heating up in recent years. For radiation therapy, to achieve the conventional penetration range of water-equivalent tissues, protons with energy of 70 to 230MeV are required. The design of electromagnetic structure is closely related to particle dynamics design. A flexible and controllable particle dynamic tracking code (PDT) through both traveling wave and standing wave acceleration has been compiled to simulate particle trajectory and satisfy automatic tuning of the various components in the entire acceleration chain. The linac with a total length of approximately 8.2m composed of 16 tanks of backward traveling wave structures and permanent magnet quadrupole lenses was designed, operating at an RF frequency of 2.856GHz with a target acceleration gradient of 30MV/m, and accelerating proton beam from 70MeV to 250MeV while maintaining low emittance and high transmission efficiency.
DOI •	reference for this paper ※ doi:10.18429/JACoW-SAP2023-TUPB010
About •	Received ※ 09 July 2023 — Accepted ※ 12 July 2023 — Issued ※ 11 August 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOPB035

Beam Dynamics Study of a Photo-Injector at Wuhan Light Source

emittance, gun, cathode, laser

79

Z.Y. Dai, Y. Chen, J.B. Guan, J.H. He, Z. Hui, H.H. Li, L.X. Liu, Z.S. Liu, Y. Nie, J. Wang, J.H. Zhong, W. Zhou, Y. Zou
IAS, Wuhan City, People’s Republic of China
H.C. Shi
Zhejiang University, Institute for Fusion Theory and Simulation, Hangzhou, People’s Republic of China

A photo-injector is under development at Wuhan Light Source (WHLS) to provide beams for the 1.5 GeV storage ring proposed as a fourth-generation synchrotron radiation light source and a future free electron laser (FEL) facility. The photo-injector and the following LINAC will be able to produce electron beams with low emittance (<2 mm·mrad), high bunch charge (~1 nC), small energy spread (<0.5%) , and short bunch length, which meet the requirements of the ring injection and the FEL operation simultaneously. The injector boosts the bunch energy to 100 MeV, which is mainly composed of a photocathode RF gun working at 2998 MHz, two solenoid coils for emittance compensation, and two 3-meter-long 2998 MHz traveling-wave (TW) accelerator units. Beam dynamics optimization of the photo-injector is presented in detail, which has been performed with multi-objective genetic algorithm (MOGA) combining theoretical analysis and ASTRA code. After optimization, the 95% projected transverse emittance has reached as low as 0.45 mm·mrad with an RMS bunch length of about 1.0 mm at a bunch charge of 1 nC.

Poster MOPB035 [2.643 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-SAP2023-MOPB035

About •

Received ※ 28 June 2023 — Accepted ※ 11 July 2023 — Issued ※ 12 November 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUPB010

Dynamics Design on 70-250Mev Proton Linac

proton, acceleration, lattice, radiation

102

Y.F. Yang, Z. Li, P.T. Lin, Z.Q. Ren, X.M. Wan
SCU, Chengdu, People’s Republic of China

Charged proton beams have broad application prospects, and research on compact S-band proton linear accelerators is increasingly heating up in recent years. For radiation therapy, to achieve the conventional penetration range of water-equivalent tissues, protons with energy of 70 to 230MeV are required. The design of electromagnetic structure is closely related to particle dynamics design. A flexible and controllable particle dynamic tracking code (PDT) through both traveling wave and standing wave acceleration has been compiled to simulate particle trajectory and satisfy automatic tuning of the various components in the entire acceleration chain. The linac with a total length of approximately 8.2m composed of 16 tanks of backward traveling wave structures and permanent magnet quadrupole lenses was designed, operating at an RF frequency of 2.856GHz with a target acceleration gradient of 30MV/m, and accelerating proton beam from 70MeV to 250MeV while maintaining low emittance and high transmission efficiency.

DOI •

reference for this paper ※ doi:10.18429/JACoW-SAP2023-TUPB010

About •

Received ※ 09 July 2023 — Accepted ※ 12 July 2023 — Issued ※ 11 August 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)