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  • December 16, 2017 at 7:51 pm #5302
    OrtoSystem
    Participant

    Hi,
    I made a kit1 but i have NaN on the map.
    I think because i set the si8b tube with 0xC id (code attach).
    My station id 13000208
    Thanks
    OrtoSystem

    Attachments:
    1. detectors.h
    December 17, 2017 at 2:05 pm #5305
    OrtoSystem
    Participant

    Yes, i see the web page.
    If i download the data from dashboard the value are correct.

    OrtoSystem

    December 21, 2017 at 7:32 pm #5308
    uRADMonitor
    Keymaster

    Hi guys,

    Indeed the new tube needs to be defined on the server side too, I am perfectly ok to allocating 0xC for this excellent pancake tube.
    I do have one and can run the tests to determine the approximative conversion from CPM to eq dose rate, but only in a few weeks from now.

    So instead, we might put some approximative values in place, if @ortoSystem can help me with that. I would need background radiation readings on two units, one with the standard SBM20 tube and next to it the unit with SI8B.

    Radu

    December 24, 2017 at 12:25 pm #5316
    OrtoSystem
    Participant

    Hi Radhoo,
    I did these two tests:
    All cpm are a mean on an hour.

    I run 1 hour of measurements with the SI8B and SBM20 and I found a conversion factor of 0.0011081.
    SBM20 = 16.27 cpm = 0.1028 usv/h (conv. 0.006315)
    SI8B = 92.77 cpm = conversion factor 0.0011081 (I assume the same value measured with SBM20 0.1028 usv/h)

    I run a parallel measurement with a bgeigie nano kit and I found a difference on the mean values on one hour of 0.00546 usv/h.
    SI8B = 92.75cpm (conv 0.0011081)= 0.1027825 usv/h
    Bgeigie= 32.5cpm (conv 0.002994) = 0.097324 usv/h

    So I think that a conversion factor of 0.0011081 can be a good value, what do you think?

    OrtoSystem

    December 25, 2017 at 1:18 pm #5339
    uRADMonitor
    Keymaster

    Thank you for this excellent contribution.

    SI8B was added with a linear factor of 0.001108

    It will be added to the KIT1 repo soon too!

    Direct unit link: https://www.uradmonitor.com/?open=13000208&sensor=cpm

    Merry Christmas!

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