为PIP-II pHB650低温模块进行热负荷测量
Heat load measurements for the PIP-II pHB650 cryomodule
AI总结：
PIP-II pHB650低温模块测试通过自动化技术提升了热负荷监测的效率和准确性。
摘要：
在PIP-II注入器测试设施上对pHB650低温模块进行第三阶段测试，旨在评估在先前测试阶段后实施的热负荷缓解措施的有效性，并继续确定任何意外高热负荷的来源。该计划在“标准”、“直线加速器”和“模拟动态”运行模式下测量HTTS、LTTS以及2 K等温/非等温负载，在低温模块内部和bayonet can电路之间记录数据。通过将原G10冷却阀杆替换为带有刮水器的不锈钢杆，消除了热声振荡。新开发的Python脚本自动化了ACNET数据的采集，进行了实时热负荷计算，并生成了图表和表格，这些内容在几分钟内发布到电子日志中，大大减少了手动工作量，并加快了SRF和制冷团队之间的反馈速度。分析显示，JT热交换器的效率和两相及泄压管道中的温度分层强烈影响观测到的负载，并帮助确定了额外热量的来源。该活动表明，严格的预测试计划、实时诊断和自动化报告可以提高准确性和效率，为未来的PIP-II低温模块测试以及实施有针对性的热负荷缓解措施提供了模板。
英文摘要：
Phase-3 testing of the pHB650 cryomodule at the PIP-II Injector Test Facility was conducted to evaluate the effectiveness of heat load mitigations performed after earlier phases of testing and to continue pinpointing any sources of unexpectedly high heat loads.. The programme measured HTTS, LTTS, and 2 K isothermal/non-isothermal loads under "standard", "linac", and "simulated dynamic" operating modes, recording data both inside the cryomodule and across the bayonet can circuits. Thermal-acoustic oscillations were eliminated by replacing the original G10 cooldown-valve stem with a stainless-steel stem fitted with wipers. A newly developed Python script automated acquisition of ACNET data, performed real-time heat-load calculations, and generated plots and tables that were posted to the electronic logbook within minutes, vastly reducing manual effort and accelerating feedback between SRF and cryogenics teams. Analysis showed that JT heat-exchanger effectiveness and temperature stratification in the two-phase and relief piping strongly influence the observed loads and helped isolate sources of excess heat. The campaign demonstrates that rigorous pre-test planning, real-time diagnostics, and automated reporting can improve both accuracy and efficiency, providing a template for future PIP-II cryomodule tests and for implementing targeted heat-load mitigations.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
