Fast DAQ system with image rejection for axion dark matter searches

S. Ahn; M. J. Lee; A. K. Yi; B. Yeo; B. R. Ko; Y. K. Semertzidis

doi:10.1088/1748-0221/17/05/P05025

Fast DAQ system with image rejection for axion dark matter searches

Instrumentation and Detectors 2022-05-25 v2 High Energy Physics - Experiment

Authors: S. Ahn , M. J. Lee , A. K. Yi , B. Yeo , B. R. Ko , Y. K. Semertzidis

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

A fast data acquisition (DAQ) system for axion dark matter searches utilizing a microwave resonant cavity, also known as axion haloscope searches, has been developed with a two-channel digitizer that can sample 16-bit amplitudes at rates up to 180 MSamples/s. First, we realized a practical DAQ efficiency of greater than 99% for a single DAQ channel, where the DAQ process includes the online fast Fourier transforms (FFTs). Using an IQ mixer and two parallel DAQ channels, we then also implemented a software-based image rejection without losing the DAQ efficiency. This work extends our continuing effort to improve the figure of merit in axion haloscope searches, the scanning rate.

Keywords

axion dark matter haloscope data acquisition image rejection IQ mixer scanning rate

Cite

@article{arxiv.2109.08312,
  title  = {Fast DAQ system with image rejection for axion dark matter searches},
  author = {S. Ahn and M. J. Lee and A. K. Yi and B. Yeo and B. R. Ko and Y. K. Semertzidis},
  journal= {arXiv preprint arXiv:2109.08312},
  year   = {2022}
}

Comments

14 pages, 8 figures, 3 tables. JINST accepted

Fast DAQ system with image rejection for axion dark matter searches

Abstract

Keywords

Cite

Comments

Related papers