苏黎世联邦理工学院

2023年5月2日

测试信号发生器可以让研究人员计划的软件小说动量显微镜(如图)虽然仍被设置在汉堡。这节约了时间和金钱。信贷:伊夫Acremann处理大量的灵巧和浓度,侵略性的Bozzini,电子工程师,焊接芯片的微小的腿上绿色电路板。“焊接不是我的强项,”他笑着说。他更感兴趣的编程芯片上的电路,也是去年他最后的实际考试的重点。作为他的个人实际工作的一部分(IPA)他最终的项目和伊夫Acremann从固体物理研究小组开发出一种测试信号发生器模拟实验数据。这个小小的银盒子看起来不起眼,但它是无价的帮助在设计一种新型显微镜观察单个电子,使研究人员。“拍照”与x射线闪光苏黎世联邦理工学院是一个世界各地的许多大学参与构建这个开创性的仪器。完成时,k-microscope,众所周知,将连接到LCLS-II设计laser-a粒子加速器在斯坦福大学,电子障碍滑雪课程,这样他们发出强大的x射线闪光。这些x射线针对标本的显微镜,使电子从标本分离。 A detector at the end of the microscope captures these electrons and calculates their exit angle and time of flight. This data tells researchers more about the electronic properties of a specimen, such as a new semiconductor. The super-fast flashes can also be used to observe dynamic processes such as a chemical reaction. "The test signal generator simulates the electrons hitting the detector," explains Acremann, a physicist. "It's connected to the detector electronics to program the software for the microscope. This step can be done from the comfort of an office." Bozzini's simulator enables researchers to develop the software while the microscope is still being built. This will save them a lot of time and money because the software will already be fully operational when the researchers connect the microscope to the particle accelerator. Integrated into the research group Apprentices also have to prepare a detailed schedule for their IPA. "Testing the generator and documenting the work took longer than planned," Bozzini recounts. This was mainly because he had written his work—as is common in research—in English and using LaTeX, a software program. That's not the only thing that makes Bozzini's work unusual: "This final project goes well beyond the basic skills of an electronics engineer," Acremann says. In January, Bozzini even managed to publish a scientific paper on the test signal generator in the Journal of Instrumentation—not an everyday achievement for an apprentice. As an apprentice, Bozzini was fully integrated into the research group. "I was able to contribute to the group's output with my paper," he says. The close collaboration between researchers and apprentices is a hallmark of vocational training at ETH Zurich. The aspiring electronics engineers spend the first two years of their education in the electronics training lab, where they learn the basics of circuit technology, manufacturing and measuring technology, and programming. For the next two years, they do an apprenticeship within ETH—in a research lab, for example. "Especially in experimental physics , it's important that we have experts who can solve technical problems and implement things effectively," Acremann explains. Although Bozzini thinks it's cool that his thesis made an important contribution to basic research, he remains modest: "That's my job—it's what I get paid for," he says. He doesn't yet know whether he would one day like to work in research himself. He's currently completing a one-year full-time vocational diploma. He has fond memories of his successful apprenticeship at ETH Zurich: after his IPA, he got to travel with Acremann to Hamburg, where the microscope is currently being set up. "That was an exciting experience for me. That's when I saw that my work can actually contribute to basic research," he says. More information: J. Bozzini et al, Test signal generator for simulating electron events from a momentum microscope, Journal of Instrumentation (2023). DOI: 10.1088/1748-0221/18/01/P01014