3 ms·
it's not using PMT's it's using silicon photomultipliers, those can be had in the $5 to $10 range. At first sight the most expensive part seems to be the CsI cr
by DoctorOetker 3y ago
it's not using PMT's it's using silicon photomultipliers, those can be had in the $5 to $10 range. At first sight the most expensive part seems to be the CsI crystal.
Perhaps polystyrene or PMMA or another transparent plastic could serve as a cheaper alternative, but probably at the cost of energy resolution, although this study binned the energies anyway.
- joshvm 3y agoGood catch, though the paper says PMT (at least they use the acroynm). I struggle to believe anything from Hamamatsu costs $5-10 ;) The arxiv Paper says they use an R1924A PMT : https://www.hamamatsu.com/us/en/product/optical-sensors/pmt/pmt_tube-alone/head-on-type/R1924A.html https://www.hamamatsu.com/us/en/product/optical-sensors/pmt/...
- DoctorOetker 3y agoThe collaboration has been measuring since ~2016 at least, so they have multiple generations of sensors installed. You capitalize and emphasize "the arxiv Paper" as if the group published one paper only as if they are from then on forbidden to explore other sensor constructions. The parent article describes a more recent iteration using silicon multi-pixel photon counters (MPPCs aka Si"PhotoMultipliers" SiMPs). Hamamatsu makes more than conventional PMT's: https://www.hamamatsu.com/jp/en/product/optical-sensors/mppc/mppc_mppc-array.html https://www.hamamatsu.com/jp/en/product/optical-sensors/mppc... When I said $5 to $10 range I was referring to some of these for example (did not thoroughly search for the lowest priced across distributors right now): https://www.mouser.com/c/optoelectronics/optical-detectors-and-sensors/photodiodes/?product=Photodiode%20Arrays https://www.mouser.com/c/optoelectronics/optical-detectors-a...
- joshvm 3y agoThanks for the correction, but please leave snark on a different forum. Mine was not intended.