Beam Dynamics simulations for ERDC project -- SRF linac for industrial use

arXiv - PHYS - Accelerator Physics Pub Date : 2024-09-11 DOI:arxiv-2409.07561

N. SolyakFermilab, Batavia, USA, I. GoninFermilab, Batavia, USA, A. SainiFermilab, Batavia, USA, V. YakovlevFermilab, Batavia, USA, C. EdwardsFermilab, Batavia, USA, J. C. ThangarajFermilab, Batavia, USA, R. KostinEuclid Techlabs LLC, C. JingEuclid Techlabs LLC

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Abstract

Compact conductively cooled SRF industrial linacs can provide unique parameters of the electron beam for industrial applications. (up to 10MeV, 1MW). For ERDC project we designed normal conducting RF injector with thermal RF gridded gun integrated in first cell of multi-cell cavities. For design of the RF gun we used MICHELLE software to simulate and optimize parameters of the beam. Output file was converted to ASTRA format and most beam dynamic simulations in multi-cell normal conducting cavity and cryomodule were performed by using ASTRA software. For cross-checking we compare results of MICHELLE and AS-TRA in first few cells. At the end of injector beam reach ~250keV energy which allow to trap bunch in acceleration regime without losses in TESLA like 1.3 GHz cavity. Short solenoid at the end of injector allow to regulate transverse beam size in cryomodule to match beam to extraction system and also reduce charge losses in accelerator.

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ERDC 项目的光束动力学模拟 -- 用于工业用途的 SRF 直列加速器

紧凑型传导冷却 SRF 工业直列加速器可为工业应用提供独特的电子束参数。(高达 10MeV，1MW）。在 ERDC 项目中，我们设计了集成在多腔第一单元中的热射频格栅枪的普通导电射频注入器。在设计射频枪时，我们使用了 MICHELLE 软件来模拟和优化射束参数。输出文件被转换为 ASTRA 格式，多室常导腔和低温模块中的大多数光束动力学模拟都是通过 ASTRA 软件完成的。为了进行交叉检验，我们比较了 MICHELLE 和 AS-TRA 在最初几个单元中的结果。在注入器末端，光束达到约 250keV 的能量，这使得在 TESLA（类似于 1.3 GHz 的腔体）中可以无损耗地俘获加速束。注入器末端的短螺线管可以调节低温模块中横向光束的大小，使光束与提取系统相匹配，同时减少加速器中的电荷损耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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arXiv - PHYS - Accelerator Physics

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