6533b826fe1ef96bd1283db7

RESEARCH PRODUCT

Anode current saturation of ALD-coated Planacon MCP-PMTs

Maciej SlupeckiE.v. AntamanovaDmitry SerebryakovJennifer Lynn KlayT. KaravichevaV. KaplinYu.a. MelikyanA. HartonE. Garcia-solisI. G. BeardenWladyslaw Henryk Trzaska

subject

High-gain antennaMaterials sciencePhysics - Instrumentation and Detectors010308 nuclear & particles physicsbusiness.industryFOS: Physical sciencesInstrumentation and Detectors (physics.ins-det)01 natural sciencesAnode0103 physical sciencesOptoelectronics010306 general physicsbusinessInstrumentationSaturation (magnetic)Mathematical Physics

description

We have measured and compared the characteristics of ALD-coated Planacon MCP-PMTs (XP85112/A1-Q-L) with their non-ALD counterparts (XP85012/A1-Q). While the later show excellent performance, the ALD-coated sensors have surprisingly low current saturation levels (~two orders of magnitude lower than expected) and extremely high gain recovery time (more than 7 orders of magnitude higher than expected). We suspect that these problems might be caused by the unexpected side-effects of the ALD process. To make a definite conclusion, more samples need to be tested, preferably from different production runs. If our observation were confirmed, it would mean a serious technological setback for ALD-coated MCP-PMTs.

yearjournalcountryeditionlanguage
2018-09-03
https://dx.doi.org/10.48550/arxiv.1807.03804