Broadband, Dead-Time-Free Spectrometer Using RFSoC for WISP Dark Matter Searches
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866929683291963392 |
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| author | Takeuchi, Hiroki Suzuki, Junya Adachi, Shunsuke Tajima, Osamu |
| author_facet | Takeuchi, Hiroki Suzuki, Junya Adachi, Shunsuke Tajima, Osamu |
| contents | Ultra-light dark matter candidates, such as axions and dark photons, particularly within the mass range of $μ$eV to meV, have garnered significant research interest. However, the effectiveness of existing experiments is often hindered by the narrow bandwidths of conventional spectrometers. This study presents a novel spectrometer solution based on a RFSoC, which integrates a high-speed data converter, field programmable gate array (FPGA), and a CPU within a single chip. The spectrometer's programmable logic implements an optimized fast Fourier transform (FFT) that minimizes memory usage, enabling an instantaneous bandwidth of 4 GHz with a frequency resolution of 16 kHz. This configuration achieves more than 99.6% time efficiency, effectively doubling search efficiency, compared with traditional approaches. This paper provides a comprehensive description of the hardware architecture, FPGA firmware, and software implementation, with a focus on the resource-efficient pipelined FFT algorithm. Performance validation results are also presented, demonstrating the accuracy and time efficiency of the developed spectrometer, highlighting its potential for advancing dark matter search. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_12003 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Broadband, Dead-Time-Free Spectrometer Using RFSoC for WISP Dark Matter Searches Takeuchi, Hiroki Suzuki, Junya Adachi, Shunsuke Tajima, Osamu Instrumentation and Detectors High Energy Physics - Experiment Ultra-light dark matter candidates, such as axions and dark photons, particularly within the mass range of $μ$eV to meV, have garnered significant research interest. However, the effectiveness of existing experiments is often hindered by the narrow bandwidths of conventional spectrometers. This study presents a novel spectrometer solution based on a RFSoC, which integrates a high-speed data converter, field programmable gate array (FPGA), and a CPU within a single chip. The spectrometer's programmable logic implements an optimized fast Fourier transform (FFT) that minimizes memory usage, enabling an instantaneous bandwidth of 4 GHz with a frequency resolution of 16 kHz. This configuration achieves more than 99.6% time efficiency, effectively doubling search efficiency, compared with traditional approaches. This paper provides a comprehensive description of the hardware architecture, FPGA firmware, and software implementation, with a focus on the resource-efficient pipelined FFT algorithm. Performance validation results are also presented, demonstrating the accuracy and time efficiency of the developed spectrometer, highlighting its potential for advancing dark matter search. |
| title | Broadband, Dead-Time-Free Spectrometer Using RFSoC for WISP Dark Matter Searches |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2501.12003 |