FORWARD SPECTROMETER OF PANDA — REQUIREMENTS AND SOLUTIONS

2009 ◽  
Vol 24 (02n03) ◽  
pp. 471-475
Author(s):  
◽  
ALEKSANDRA WROŃSKA
Keyword(s):  
Nuclear Physics ◽  
High Rate ◽  
Reaction Products ◽  
Fixed Target ◽  
Dipole Magnet ◽  
Lorentz Boost ◽  
Forward Spectrometer ◽  
Rich Detector ◽  
Current Design ◽  
Rate Environment

PANDA is a future antiproton experiment designed to study fundamental questions of hadron and nuclear physics. It will work as a fixed-target facility, hence – due to the Lorentz boost – the distribution of reaction products will be strongly forward-peaked, in particular for the near-threshold measurements. Thus, the Forward Spectrometer, covering the most forward angles (θlab < 10°) is one of the key components of PANDA. In this contribution, current design of the Forward Spectrometer is presented. Spectrometer components, including dipole magnet, tracking detectors, electromagnetic and hadron calorimeter, muon counters, RICH detector and TOF system are discussed. Results of simulations are shown along with tests of the prototype detectors performed in a high-rate environment.

scholarly journals The BmnRoot framework for experimental data processing in the BM@N experiment at NICA

2019 ◽  
Vol 214 ◽  
pp. 05027 ◽  
Author(s):  
Pavel Batyuk ◽  
Konstantin Gertsenberger ◽  
Sergey Merts ◽  
Oleg Rogachevsky
Keyword(s):  
Nuclear Physics ◽  
Nuclear Research ◽  
Information Support ◽  
Fixed Target ◽  
Experimental Data Processing ◽  
Multiparticle Interaction ◽  
Physics Program ◽  
Target Experiment ◽  
Under Construction ◽  
New Generation

A new generation of experiments for the relativistic nuclear physics is expected to be started up in the nearest years at the Nuclotron-based Ion Collider fAcility (NICA) under construction at the Joint Institute for Nuclear Research in Dubna. The main part of the facility is the essentially modernized accelerator Nuclotron. BM@N (Baryonic Matter at Nuclotron) is considered as a first stage towards realization of physics program available at NICA. It is a fixed target experiment aimed to work with the Nuclotron extracted beams of different species. The experiment had a set of technical runs since 2015. For a successful realization of the BM@N physics program, a well developed and tested software for simulation, digitization, reconstruction and analysis of collision events and other additional tasks is of utmost importance. The BmnRoot software developed in order to operate the mentioned tasks is described in this article. It includes modules for data digitizing obtained from BM@N detector systems, realistic simulation of signals in detectors, alignment of detectors, reconstruction of multiparticle interaction events, as well as all necessary systems for maintaining the databases of the experiment, visualization and providing information support for the experiment.

scholarly journals DARK FORCES SEARCHES IN FIXED TARGET EXPERIMENTS

2014 ◽  
Vol 35 ◽  
pp. 1460392
Author(s):  
M. BATTAGLIERI
Keyword(s):  
Nuclear Physics ◽  
Electromagnetic Current ◽  
Beyond The Standard Model ◽  
Fixed Target ◽  
Accelerator Facility ◽  
Fixed Target Experiments ◽  
Jefferson Lab ◽  
Hidden Sector ◽  
The Standard Model ◽  
Massive Boson

Searches for physics Beyond the Standard Model (BSM) can be carried out with precise and GeV-energy-range experiments. In many string theories, a Hidden Sector, decoupled to the SM, foresees the existence of a new massive boson, the A′ or heavy photon, that weakly couples to the electromagnetic current. A new particle with mass in the range of 1 MeV - 1 GeV could explain many astro-particle observations (e.g. positron excess seen by PAMELA and AMS experiments) and some anomalies not yet fully understood (e.g. muon g - 2 factor). The search for A′ has motivated intense experimental activities in almost every accelerator facility using different techniques: colliding beam, fixed target experiments, meson rare decays. Jefferson Lab, a world-leading nuclear physics laboratory, is planning a set of fixed target experiments aiming to discover the A′ or set new limits in its mass and coupling, with an unprecedented sensitivity and reach capability. In this contribution, after reviewing the physics case and some experimental evidences, I will report on the program of measurements planned at Jefferson Lab for the next years.

scholarly journals Development of gated fiber detectors for laser-induced strong electromagnetic pulse environments

2021 ◽  
Vol 32 (6) ◽  
Author(s):  
Po Hu ◽  
Zhi-Guo Ma ◽  
Kai Zhao ◽  
Guo-Qiang Zhang ◽  
De-Qing Fang ◽  
...  
Keyword(s):  
High Intensity ◽  
Nuclear Physics ◽  
Nuclear Reactions ◽  
Reaction Products ◽  
Temperature Plasma ◽  
Electromagnetic Pulses ◽  
High Intensity Laser ◽  
New Type ◽  
Prototype Detector ◽  
Physics Experiments

AbstractWith the development of laser technologies, nuclear reactions can happen in high-temperature plasma environments induced by lasers and have attracted a lot of attention from different physical disciplines. However, studies on nuclear reactions in plasma are still limited by detecting technologies. This is mainly due to the fact that extremely high electromagnetic pulses (EMPs) can also be induced when high-intensity lasers hit targets to induce plasma, and then cause dysfunction of many types of traditional detectors. Therefore, new particle detecting technologies are highly needed. In this paper, we report a recently developed gated fiber detector which can be used in harsh EMP environments. In this prototype detector, scintillating photons are coupled by fiber and then transferred to a gated photomultiplier tube which is located far away from the EMP source and shielded well. With those measures, the EMPs can be avoided which may result that the device has the capability to identify a single event of nuclear reaction products generated in laser-induced plasma from noise EMP backgrounds. This new type of detector can be widely used as a time-of-flight (TOF) detector in high-intensity laser nuclear physics experiments for detecting neutrons, photons, and other charged particles.

Highly efficient resistive plate chambers for high rate environment

1999 ◽  
Vol 78 (1-3) ◽  
pp. 438-443 ◽  
Author(s):  
M. Ćwiok ◽  
W. Dominik ◽  
M. Górski ◽  
J. Królikowski
Keyword(s):  
High Rate ◽  
Highly Efficient ◽  
Rate Environment ◽  
Resistive Plate Chambers

Stabilization of a low-frequency instability in a dipole plasma

2008 ◽  
Vol 74 (6) ◽  
pp. 733-740 ◽  
Author(s):  
D. T. GARNIER ◽  
A. C. BOXER ◽  
J. L. ELLSWORTH ◽  
A. K. HANSEN ◽  
I. KARIM ◽  
...  
Keyword(s):  
Low Frequency ◽  
Frequency Instability ◽  
High Rate ◽  
Dipole Magnet ◽  
Neutral Gas ◽  
Plasma Density Profile ◽  
Radial Extent ◽  
Wide Range ◽  
Low Frequency Instability ◽  
Lower Temperature

AbstractLow-frequency fluctuations are observed in a plasma confined by a strong dipole magnet and containing an energetic high-pressure population of trapped electrons. The quasi-coherent fluctuations have frequencies characteristic of drift frequencies of the lower temperature background plasma and have large toroidal and radial extent. They are excited throughout a wide range of plasma conditions determined by the level of neutral gas pressure. However, for a sufficiently high rate of neutral gas fueling, the plasma density profile flattens and the fluctuations disappear.

Performance of a silicon microstrip detector in a very high rate environment

1992 ◽  
Vol 39 (5) ◽  
pp. 1249-1253
Author(s):  
A. McManus ◽  
A. Boden ◽  
T.Y. Chen ◽  
M. Cooper ◽  
B. Cox ◽  
...  
Keyword(s):  
High Rate ◽  
Rate Environment ◽  
Silicon Microstrip ◽  
Very High ◽  
Microstrip Detector

An MWPC readout chip for high rate environment

2001 ◽  
Vol 48 (3) ◽  
pp. 509-513 ◽  
Author(s):  
H. Kano ◽  
C. Fukunaga ◽  
M. Ikeno ◽  
O. Sasaki ◽  
K. Sato ◽  
...  
Keyword(s):  
High Rate ◽  
Rate Environment
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