{
  "id": 61711,
  "title": "Nominal magnetic field?",
  "url": "/competitions/trackml-particle-identification/discussion/61711",
  "author_name": "",
  "post_date": "2018-07-22T16:58:13.102108100Z",
  "votes": null,
  "comment_count": 3,
  "views": 0,
  "content": "<p>Hello,</p>\n\n<p>I know the true field map isn't provided, but I can't seem to find any coarse details about the B field design like dimensions, field strength, etc... is that somewhere and I just missed it?</p>\n\n<p>Thanks!</p>",
  "messages": [
    {
      "id": "360536",
      "postDate": "07/22/2018 16:58:13",
      "content": "<p>Hello,</p>\n\n<p>I know the true field map isn't provided, but I can't seem to find any coarse details about the B field design like dimensions, field strength, etc... is that somewhere and I just missed it?</p>\n\n<p>Thanks!</p>",
      "rawMarkdown": "Hello,\n\nI know the true field map isn't provided, but I can't seem to find any coarse details about the B field design like dimensions, field strength, etc... is that somewhere and I just missed it?\n\nThanks!",
      "votes": null
    },
    {
      "id": "360538",
      "postDate": "07/22/2018 17:02:01",
      "content": "<p>You did not miss any.</p>",
      "rawMarkdown": "You did not miss any.",
      "votes": null
    },
    {
      "id": "361013",
      "postDate": "07/23/2018 17:43:43",
      "content": "<p>The magnetic field is generated by a solenoid magnet. In the central part of the detector (barrel section) it is almost constant and almost aligned aligned with the global z-axis with a field strength of approximately 2 Tesla. Its strength decreases as you go towards the forward detectors (disks).</p>\n\n<p>I'm intentionally vague here. What is important is not  the exact field values but its effects on the particle trajectories. This information is already available from the truth data in the training dataset.</p>",
      "rawMarkdown": "The magnetic field is generated by a solenoid magnet. In the central part of the detector (barrel section) it is almost constant and almost aligned aligned with the global z-axis with a field strength of approximately 2 Tesla. Its strength decreases as you go towards the forward detectors (disks).\n\nI'm intentionally vague here. What is important is not  the exact field values but its effects on the particle trajectories. This information is already available from the truth data in the training dataset.",
      "votes": null
    },
    {
      "id": "363412",
      "postDate": "07/28/2018 22:50:47",
      "content": "<p>Is it safe to assume that the entire system (including the magnetic field and particles' track distribution) is perfectly circularly symmetric?</p>",
      "rawMarkdown": "Is it safe to assume that the entire system (including the magnetic field and particles' track distribution) is perfectly circularly symmetric?",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 360538,
      "author_name": "cpmpml",
      "author_url": "",
      "post_date": "07/22/2018 17:02:01",
      "content": "<p>You did not miss any.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 361013,
      "author_name": "msmk00",
      "author_url": "",
      "post_date": "07/23/2018 17:43:43",
      "content": "<p>The magnetic field is generated by a solenoid magnet. In the central part of the detector (barrel section) it is almost constant and almost aligned aligned with the global z-axis with a field strength of approximately 2 Tesla. Its strength decreases as you go towards the forward detectors (disks).</p>\n\n<p>I'm intentionally vague here. What is important is not  the exact field values but its effects on the particle trajectories. This information is already available from the truth data in the training dataset.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 363412,
      "author_name": "dotdashdashdash",
      "author_url": "",
      "post_date": "07/28/2018 22:50:47",
      "content": "<p>Is it safe to assume that the entire system (including the magnetic field and particles' track distribution) is perfectly circularly symmetric?</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "360536": "Hello,\n\nI know the true field map isn't provided, but I can't seem to find any coarse details about the B field design like dimensions, field strength, etc... is that somewhere and I just missed it?\n\nThanks!",
    "360538": "You did not miss any.",
    "361013": "The magnetic field is generated by a solenoid magnet. In the central part of the detector (barrel section) it is almost constant and almost aligned aligned with the global z-axis with a field strength of approximately 2 Tesla. Its strength decreases as you go towards the forward detectors (disks).\n\nI'm intentionally vague here. What is important is not  the exact field values but its effects on the particle trajectories. This information is already available from the truth data in the training dataset.",
    "363412": "Is it safe to assume that the entire system (including the magnetic field and particles' track distribution) is perfectly circularly symmetric?"
  },
  "source": "meta"
}