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    "headline": "A Cup of Water Counted Each Radiation Pulse",
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    "dek": "Cavity-enhanced optical sensing read clinical pulses in real time with a reported nominal 90-microgray resolution.",
    "summary": "Cavity-enhanced optical sensing read clinical pulses in real time with a reported nominal 90-microgray resolution.",
    "body_text": "A proof-of-concept dosimeter uses a centimeter-scale volume of water as both a tissue-equivalent medium and an optical sensing element. Cavity-enhanced absorption measurements tracked individual clinical radiotherapy pulses in real time, with the authors reporting nominal single-pulse resolution of 90 microgray. They propose that the method could eventually be miniaturized and integrated with fiber optics for in-situ dose measurement. The current work is a laboratory demonstration, not a validated micron-scale clinical device or replacement for established treatment dosimetry.",
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      "The current work is a laboratory demonstration, not a validated micron-scale clinical device or replacement for established treatment dosimetry."
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    "tags": [
      "radiotherapy",
      "dosimetry",
      "optics",
      "water"
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      "title": "arXiv preprint 2608.02889",
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