ILC Electron Source Injector Simuations

Lakshmanan, Manu ; /Cornell U., LNS /SLAC

关键词: CHARGED PARTICLES;    DESIGN;    ELECTROMAGNETIC FIELDS;    ELECTRON BEAMS;    ELECTRON GUNS;    ELECTRON SOURCES;    ELECTRONS;    MAGNETIC FIELDS;    SIMULATION Accelerators;    ACCPHY;   

DOI  :  10.2172/915383
RP-ID  :  SLAC-TN-07-014
PID  :  OSTI ID: 915383
Others  :  TRN: US0804972

学科分类：物理（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

As part of the global project aimed at proposing an efficient design for the ILC (International Linear Collider), we simulated possible setups for the electron source injector, which will provide insight into how the electron injector for the ILC should be designed in order to efficiently accelerate the electron beams through the bunching system. This study uses three types of software: E-Gun to simulate electron beam emission, Superfish to calculate solenoidal magnetic fields, and GPT (General Particle Tracer) to trace charged particles after emission through magnetic fields and subharmonic bunchers. We performed simulations of the electron source injector using various electron gun bias voltages (140kV - 200kV), emitted beam lengths (500ps - 1ns) and radii (7mm - 10mm), and electromagnetic field strengths of the first subharmonic buncher (5 - 20 MV/m). The results of the simulations show that for the current setup of the ILC, a modest electron gun bias voltage ({approx}140kV) is sufficient to achieve the required bunching of the beam in the injector. Extensive simulations of parameters also involving the second subharmonic buncher should be performed in order to gain more insight into possible efficient designs for the ILC electron source injector.