433 citations · 7.1k across the 185 of their papers we have counts for
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Compact sub-10 ps Resolution Radio Frequency Photomultiplier Tube
Sergey Abrahamyan, Simon Zhamkochyan, Hasmik Rostomyan +16
Experimental measurements of the radial spreading of photoelectrons emitted from a multi-alkali photocathode in a MCP-based photomultiplier tube have shown that, for photon wavelen…
A Helical-Deflector-Based Radio-Frequency Spiral Scanning System for keV Energy Electrons
Simon Zhamkochyan, Vanik Kakoyan, Vardan Bardakhchyan +21
We present the design, modeling, and experimental validation of a radio-frequency based time-to-position conversion system for keV electrons incorporating a helical deflector opera…
Method to search for the triple-neutron state in an electron scattering experiment
Tianhao Shao, Jinhui Chen, Yu-Gang Ma +1
An electron scattering experiment to search for the trineutron state by reaction is designed for the A1 facility at Mainzer Microtron. The deta…
Picosecond Precision Heavy-Ion Detector for Λ Hypernuclei Lifetime Studies
Simon Zhamkochyan, Sergey Abrahamyan, Amur Margaryan +18
In this paper, we present the design and preliminary performance evaluation of a new heavy-ion detector for direct measurements of heavy Λ hypernuclei lifetime. The detector employ…
Picosecond resolution photoelectron emission lifetime detection system
V. Kakoyan, S. Zhamkochyan, S. Abrahamyan +21
This paper describes a new photoelectron emission lifetime detection system. It is based on a recently developed Radio Frequency Timing technique of keV electrons and a 40 MHz, ult…
Measurement of the Ar(e,e) elastic scattering cross section with a novel gas-jet target
M. Littich, L. Doria, P. Brand +35
We report on a measurement of elastic electron scattering on argon performed with a novel cryogenic gas-jet target at the Mainz Microtron accelerator MAMI. The luminosity is estima…
A Highly Segmented Neutron Polarimeter for A1
R. Spreckels, M. Hoek, U. Müller +1
A new neutron polarimeter for measuring the neutron's electric form factor was designed and constructed to complement the A1 spectrometer setup at the Mainz Microtron (MAMI). The d…
An infrared light-guide based target positioning system for operation in a harsh environment
Falk Schupp, Michael Bölting, Patrick Achenbach +3
In the PANDA experiment's hypernuclear and hyperatom setup, a positioning system for the primary production target is required, which will be located in the center of the solenoid…
High accuracy synchrotron radiation interferometry with relativistic electrons
P. Klag, P. Achenbach, T. Akiyama +28
A high-precision hypernuclear experiment has been performed at the Mainz Microtron (MAMI) to determine the hypertriton Λ binding energy via decay-pion spectroscopy. A key element o…
Advanced Radio Frequency Timing AppaRATus (ARARAT) Technique and Applications
Ani Aprahamian, Amur Margaryan, Vanik Kakoyan +28
The development of the advanced Radio Frequency Timer of electrons is described. It is based on a helical deflector, which performs circular or elliptical sweeps of keV electrons,…
An RF Timer of Electrons and Photons with the Potential to reach Picosecond Precision
Amur Margaryan, Vanik Kakoyan, Simon Zhamkochyan +17
This paper describes a new radio frequency timer of keV energy electrons. It is based on a helical deflector, which performs circular or elliptical sweeps of keV electrons, by mean…
Operation and characterization of a windowless gas jet target in high-intensity electron beams
B. S. Schlimme, S. Aulenbacher, P. Brand +54
A cryogenic supersonic gas jet target was developed for the MAGIX experiment at the high-intensity electron accelerator MESA. It will be operated as an internal, windowless target…
Technical Design Report for the PANDA Endcap Disc DIRC
Panda Collaboration, F. Davi, W. Erni +460
PANDA (anti-Proton ANnihiliation at DArmstadt) is planned to be one of the four main experiments at the future international accelerator complex FAIR (Facility for Antiproton and I…
Precision beam energy measurement by undulator radiation at MAMI
P. Klag, P. Achenbach, M. Biroth +10
A novel interferometric method for absolute beam energy measurement is under development at MAMI. At the moment, the method is tested and optimized at an energy of 195 MeV. Despite…
Novel optical interferometry of synchrotron radiation for absolute electron beam energy measurements
P. Klag, P. Achenbach, M. Biroth +10
A novel interferometric method is presented for the measurement of the absolute energy of electron beams. In the year 2016, a pioneering experiment was performed using a 195 MeV be…
High Precision Momentum Calibration of the Magnetic Spectrometers at MAMI for Hypernuclear Binding Energy Determination
A. Margaryan, J. R. M. Annand, P. Achenbach +8
We propose a new method for absolute momentum calibration of magnetic spectrometers used in nuclear physics, using the time-of-flight (TOF), differences of pairs of particles with…
The COMPASS Setup for Physics with Hadron Beams
Ph. Abbon, C. Adolph, R. Akhunzyanov +228
The main characteristics of the COMPASS experimental setup for physics with hadron beams are described. This setup was designed to perform exclusive measurements of processes with…
Technical Design Report for the: PANDA Micro Vertex Detector
PANDA Collaboration, W. Erni, I. Keshelashvili +454
This document illustrates the technical layout and the expected performance of the Micro Vertex Detector (MVD) of the PANDA experiment. The MVD will detect charged particles as clo…
Characterisation and calibration of a scintillating fibre detector with > 4000 multi-anode photomultiplier channels
A. Esser, P. Achenbach, C. Ayerbe Gayoso +3
In the Kaos spectrometer at the Mainz Microtron a high-resolution coordinate detector for high-energy particles is operated. It consists of scintillating fibres with diameters of <…
Detector developments for the hypernuclear programme at PANDA
P. Achenbach, J. Pochodzalla, A. Sanchez Lorente +1
The technical design of the PANDA experiment at the future FAIR facility next to GSI is progressing. At the proposed anti-proton storage ring the spectroscopy of double Lambda hype…
A Tracking Fiber Detector based on Silicon Photomultipliers for the Kaos Spectrometer
P. Achenbach, J. Pochodzalla, S. Sánchez Majos
A tracking detector based on two meters long scintillating fibers read out by silicon photomultipliers (SiPM) is being developed for the Kaos spectrometer at the Mainz Microtron MA…
A Large-Scale FPGA-Based Trigger and Dead-Time Free DAQ System for the Kaos Spectrometer at MAMI
P. Achenbach, C. Ayerbe Gayoso, J. C. Bernauer +24
The Kaos spectrometer is maintained by the A1 collaboration at the Mainz Microtron MAMI with a focus on the study of (e,e'K^+) coincidence reactions. For its electron-arm two verti…
Technical Design Report for the PANDA Solenoid and Dipole Spectrometer Magnets
The PANDA Collaboration, W. Erni, I. Keshelashvili +407
This document is the Technical Design Report covering the two large spectrometer magnets of the PANDA detector set-up. It shows the conceptual design of the magnets and their antic…
Technical Design Report for PANDA Electromagnetic Calorimeter (EMC)
PANDA Collaboration, W. Erni, I. Keshelashvili +407
This document presents the technical layout and the envisaged performance of the Electromagnetic Calorimeter (EMC) for the PANDA target spectrometer. The EMC has been designed to m…