{
  "annotation_id": "12087775-73dd-459c-b4bd-101259e8b94b",
  "date_created": "2026-03-02T18:01:14.813000Z",
  "date_modified": "2026-03-02T18:01:14.813000Z",
  "file_hash": "1a688db40d8fb24edd3d224fecfbf53bc0fc21d584fdecd2baaaf12712770f49",
  "private": false,
  "record": {
    "abstract": "Time-over-threshold measurements of the output of a first order integration\namplifier can be used as a cheap way to estimate the charge deposited on a wire\nin an MWPC. Even if the time scale of the first order system is seemingly much\nlarger than the signal development time, we noticed experimentally a\nsignificant deviation from the relationship of time-over-threshold and the\ncharge, as would be naively expected from the exponential response of the\namplifier. We strongly suspect the current induced by the residual ion movement\nto be at least partially responsible for this observation. It is of course\nwell-known that the ion movement is responsible for the bulk of the signal\ngeneration in a wire chamber, this is not the point ; however, the surprise is\nrather that this movement has influences on time scales which are so long that\nthe finite ion movement could be thought negligible. In this paper we will\ntreat theoretically the influence of ion movement and of AC coupling on the\nexpected time-over-threshold relationship and confront this to the measurements\non a small test MWPC in thermal neutron detection.",
    "arxiv_id": "physics/0611034",
    "authors": [
      "Patrick Van Esch",
      "Thomas Durand"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "title": "Effects of ion drift on time-over-threshold charge estimates using   first-order integrators in thermal neutron MWPC",
    "url": "https://arxiv.org/abs/physics/0611034"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4428a922-8f2c-46a0-93bc-f40506dcac42",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}