کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1822332 | 1526346 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An internal ALD-based high voltage divider and signal circuit for MCP-based photodetectors
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
ابزار دقیق
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An internal ALD-based high voltage divider and signal circuit for MCP-based photodetectors An internal ALD-based high voltage divider and signal circuit for MCP-based photodetectors](/preview/png/1822332.png)
چکیده انگلیسی
We describe a pin-less design for the high voltage (HV) resistive divider of the all-glass LAPPDTM 8Â in.-square thin photodetector module. The divider, which distributes high voltage applied to the photocathode to the two micro-channel plates (MCPs) that constitute the amplification stage, is comprised of the two MCPs and three glass mechanical spacers, each of which is coated with a resistive layer using atomic layer deposition (ALD). The three glass grid spacers and the two MCPs form a continuous resistive path between cathode and anode, with the voltages across the MCPs and the spacers determined by the resistance of each. High voltage is applied on an external tab on the top glass window that connects to the photocathode through the metal seal. The DC ground is supplied by microstrips on the bottom glass plate that form the high-bandwidth anode. The microstrips exit the package through the glass-frit seal of the anode base-plate and the package sidewall. The divider is thus completely internal, with no HV pins penetrating the low-profile flat glass package. Measurements of the performance of the divider are presented for the 8Â in.-square MCP and spacer package in a custom test fixture and for an assembled externally pumped LAPPDTM prototype with an aluminum photocathode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 780, 21 April 2015, Pages 107-113
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 780, 21 April 2015, Pages 107-113
نویسندگان
Bernhard W. Adams, Andrey Elagin, Jeffrey W. Elam, Henry J. Frisch, Jean-Francois Genat, Joseph S. Gregar, Anil U. Mane, Michael J. Minot, Richard Northrop, Razib Obaid, Eric Oberla, Alexander Vostrikov, Matthew Wetstein,