Draft spec for a 1psec 3GHz bandwidth fast-timing ASIC. An Appendix makes the case for wave-form samplilng, in particular for baseline subtraction.
Eric's talk at CPAD, Dec. 9 2019; Madison Wisconsin
Stroboscopic Beam Timing paper as published in PHYSICAL REVIEW D 100, 032008 (2019) We propose to use a higher-frequency rf bunch structure for the primary proton beam on target and precision timing to select different energy and flavor spectra from...
The batch-production air-transfer paper as published: Review of Scientific Instruments 91, no. 5 (2020): 053105; 28 April 2020
Gerber files are under pad-pickup-64-gerber folder. There are 64 minus 4 square pads on the front layer, four corner pads excluded. This is because only 60 channels are available. Each pads are labeled from 1 to 64, horizontal then vertical...
Anode Pad Sharing NIM Paper as Published: Nuclear Inst. and Methods in Physics Research, A 985 (2021) 164702; 22 Sept, 2020 \\~~~~~~~~~~~~~ Abstract: Micro-channel-plate-based photo-detectors are unique in being capable of covering very large areas such as those required in...
A system of Large Area Picosecond Photodetectors (LAPPDTM) has been constructed at the Fermilab Test Beam Facility (FTBF) to measure charged particles in a time-of-flight configuration. Cherenkov photons produced by charged particles passing through the glass window induce signals that...
The properties of radiation emitted when a single electron passes through an undulator element, though quantum in nature due to small occupation number, should extrapolate to the same observed properties of undulator radiation in the high occupation number of an...
Andrey's farewell talk: "Wine and Cheese" seminar at Fermilab. August 21, 2020.
Micro-channel-plate-based photo-detectors are unique in being capable of covering areas of many square-meters while providing sub-millimeter space resolution, time resolutions of less than 10 picoseconds for charged particles, time resolutions of 30-50 psec for single photons. Incorporating a capacitively-coupled anode...
We have designed and prototyped the process steps for the batch production of large-area micro-channel-plate photo- multipliers (MCP-PMT) using the “air-transfer” assembly process developed with single LAPPDTM modules. Results are presented addressing the challenges of designing a robust package that...
We have designed and prototyped the process steps for the batch production of large-area micro-channel-plate photomultipliers (MCP-PMT) using the ``air-transfer'' assembly process developed with single $\LAPPDTM$ modules. Results are presented addressing the challenges of designing a robust package that can...
We propose a relatively simple method to measure the event time in liquid Argon (LAr) neutrino detectors that takes advantage of the topological reconstruction of each event {\it prior} to a `one-parameter' fit for the time using `Precision-4D' photodetectors. A...
White Paper on use of large-area MCPs assembled without the usual bialkali cathodes as the active elements in sampling calorimeters.
Heated metal filaments under electric fields and low pressures of alkali metal gas eject electrons by thermionic emission as a function of the pressure of the gas and the temperature of the filament. To explore this process in a program...
Summer 2019 note about MELZ photo-multiplier tubes.
This little note proposes adding time-sliced information from muon monitors to the stroboscopic neutrino oscillation analysis. Specific proposals include a low intensity run before the halls get too hot to reach muons in the relevant kinematic range, and a description...
Alexey Lyashenko,
Bernhard Adams,
Evan Angelico,
Melvin Aviles,
Till Cremer,
Andrey Elagin,
Jeffrey W. Elam,
Camden Ertley,
Michael R Foley,
Henry J Frisch,
Anil U. Mane,
Michael Minot,
Mark A Popecki,
Ossy Siegmund,
Eric Spieglan,
Michael E Stochaj and
William A Worstell
We report on performance results achieved for recently produced LAPPDs. LAPPDs is a good candidate to be employed in neutrino experiments (e.g. ANNIE [1], WATCHMAN [2], DUNE [3]), particle collider experiments (e.g. EIC [4]), neutrinoless double-beta decay experiments (e.g. THEIA...
Talk at TIPP, Amsterdam; June 2014
We present a technique for separating nuclear double beta-decay events from background 8B solar neutrino interactions in a liquid scintillator detector instrumented with photo-detectors with mm space and 100-psec time resolutions. The technique uses position and time information of detected...
This paper is about the development of a new method of real-time remote controlling of Droege High Voltage DC Power Supplies.
ADC data collected on an ACDC card with a generated 100 MHz sine wave input are analyzed with the goal of understanding the measurement noise in the system. Best fits to models are performed, and the residuals of the fits...
Report from the summer 2018 REU, working with the PSEC group
Report from the summer 2018 REU, working with the PSEC group
REU summer report describing how to set up the interface for the Raspberry Pi DAQ system in the lab with Node-RED, an Internet of Things software tool, to assistin plotting live data at any and all times. This is a...
A how-to-use and description of the newer/cheaper CNC 2d translation stage used for measuring QE maps
Summer report on modifications of the PSEC4 ACDC board in preparation for a PSEC4a board design. Featuring testing a new ACDC switching power regulator as well as ideas for PSEC4a board form factors