Pre-emptive parametric kill switch for evaporative atomic sources in vacuum
Abstract
A robust pre-emptive kill switch for cold atom experiments is introduced to significantly reduce costly system reassembly or replacement. The design incorporates upper (alarm) and lower (evaporation) event detection mechanisms based on predefined thresholds. Meanwhile, a duty cycle timing methodology is used to avert unintentional activation of the dispenser in circumstances where pulse signals occur. The circuit employs generic components, a modular design, and formalized logic, ensuring cost-effectiveness, making the design suitable for school laboratories and other research environments. This design is highly versatile and can be applied to other sensitive devices beyond dispensers, such as heating filaments, titanium sublimation pumps, tungsten lamps, and comparable systems.
Keywords
Cite
@article{arxiv.2510.27381,
title = {Pre-emptive parametric kill switch for evaporative atomic sources in vacuum},
author = {Shuang Li and Zhiyuan Lin and Sen Li and Mohan Zhang and Fengquan Zhang and Jin Hu and Xiaotong Liu and Lin Meng and Tim Byrnes and Valentin Ivannikov},
journal= {arXiv preprint arXiv:2510.27381},
year = {2025}
}