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Commissioning of the DA NE Beam Test Facility

TL;DR: The DA NE Beam Test Facility (BTF) is a beam transfer line optimized for the production of a dened number of electrons or positrons, in a wide range of multiplicities and down to single-electron mode, in the energy range between 50 and 800 MeV.
Abstract: The DA NE Beam Test Facility (BTF) is a beam transfer line optimized for the production of a dened number of electrons or positrons, in a wide range of multiplicities and down to single-electron mode, in the energy range between 50 and 800 MeV. The typical pulse duration is 10 ns and the maximum repetition rate is 50 Hz. The facility is aimed mainly for detector calibration purposes. The BTF has been successfully commissioned in February 2002, and started operation in November of the same year. The schemes of operation, the commissioning results, as well as the rst users’ experience are here reported.
Citations
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01 Jun 1957
TL;DR: In this paper, an expicit expression for the mean number of photons emitted per revolution in synchrotron radiation was derived, based on a simple one-dimensional integral, which allowed us to carry out a systematic analysis for high-energy charged particles.
Abstract: Although many features of synchrotron radiation have been well known for a long time (e.g., [1]), there is certainly room for further improvements and developments. In a recent investigation [2], starting from Schwinger’s monumental work on synchrotron radiation [3] many years ago, an expicit expression for the mean number 〈N〉 of photons emitted per revolution was derived involving a remarkably simple one-dimensional integral. This allowed us to carry out a systematic analysis for high-energy charged particles. Our new expression is given by

137 citations

Journal ArticleDOI
TL;DR: The AGILE Payload is composed of three instruments: a gamma-ray imager based on a tungsten-silicon tracker (ST), a Silicon based X-ray detector, SuperAGILE (SA), and a CsI(Tl) Mini-Calorimeter (MCAL) that detects gamma rays or charged particles energy loss in the range 300 −keV −100 −MeV as mentioned in this paper.
Abstract: AGILE is a small space mission of the Italian Space Agency (ASI) devoted to gamma-ray and hard-X astrophysics, successfully launched on April 23, 2007. The AGILE Payload is composed of three instruments: a gamma-ray imager based on a tungsten-silicon tracker (ST), for observations in the gamma ray energy range 30 MeV–50 GeV, a Silicon based X-ray detector, SuperAGILE (SA), for imaging in the range 18–60 keV and a CsI(Tl) Mini-Calorimeter (MCAL) that detects gamma rays or charged particles energy loss in the range 300 keV–100 MeV. MCAL is composed of 30 CsI(Tl) scintillator bars with photodiode readout at both ends, arranged in two orthogonal layers. MCAL can work both as a slave of the ST and as an independent gamma-ray detector for transients and gamma-ray bursts detection. In this paper a detailed description of MCAL is presented together with its performance.

105 citations

Journal ArticleDOI
TL;DR: In this article, the authors proposed a search for photon-like particles in the $ e+e^- \to U\gamma$ process in a positron-on-target experiment, exploiting the positron beam of the DA$\Phi$NE linac.
Abstract: Photon-like particles are predicted in many extensions of the Standard Model. They have interactions similar to the photon, are vector bosons, and can be produced together with photons. The present paper proposes a search for such particles in the $ e^+e^- \to U\gamma$ process in a positron-on-target experiment, exploiting the positron beam of the DA$\Phi$NE linac at the Laboratori Nazionali di Frascati, INFN. In one year of running a sensitivity in the relative interaction strength down to $\sim10^{-6}$ is achievable, in the mass region from 2.5 MeV$

105 citations

Journal ArticleDOI
M. Bogomilov1, Y. Karadzhov1, D. Kolev1, I. Russinov1  +191 moreInstitutions (36)
TL;DR: The international Muon Ionization Cooling Experiment (MICE) is under construction at the Rutherford Appleton Laboratory (RAL) to demonstrate the principle of ionization cooling as a technique for the reduction of the phase-space volume occupied by a muon beam as discussed by the authors.
Abstract: The international Muon Ionization Cooling Experiment (MICE), which is under construction at the Rutherford Appleton Laboratory (RAL), will demonstrate the principle of ionization cooling as a technique for the reduction of the phase-space volume occupied by a muon beam. Ionization cooling channels are required for the Neutrino Factory and the Muon Collider. MICE will evaluate in detail the performance of a single lattice cell of the Feasibility Study 2 cooling channel. The MICE Muon Beam has been constructed at the ISIS synchrotron at RAL, and in MICE Step I, it has been characterized using the MICE beam-instrumentation system. In this paper, the MICE Muon Beam and beam-line instrumentation are described. The muon rate is presented as a function of the beam loss generated by the MICE target dipping into the ISIS proton beam. For a 1 V signal from the ISIS beam-loss monitors downstream of our target we obtain a 30 KHz instantaneous muon rate, with a neglible pion contamination in the beam.

87 citations


Cites background from "Commissioning of the DA NE Beam Tes..."

  • ...From tests performed at the e+/e− test beam facility BTF [57] of INFN LNF, a time resolution of ∆t ≈ 70 ps/ √ E and an electron-energy resolution, fully dominated by sampling fluctuations, of ∆E/E ≈ 7%/ √ E are obtained for electron energies between 75 MeV and 350 MeV....

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Journal ArticleDOI
TL;DR: In this article, the authors report the results of a systematic study of the time performance of triple-GEM detectors operated with Ar/CO 2 /CF 4 and Ar/CF 4 /iso-C 4 H 10 gas mixtures.
Abstract: We report the results of a systematic study of the time performance of triple-GEM detectors operated with Ar/CO 2 /CF 4 and Ar/CF 4 /iso-C 4 H 10 gas mixtures. This study and the detector development has been performed in the framework of an R&D activity on detectors for the innermost part (region R1) of the first muon station (M1) of the LHCb experiment. The use of fast gas mixtures allows to achieve a time resolution better than 5 ns (r.m.s.) and a single detector efficiency up to ∼ 99% in a 20 ns time window. Discharge studies have been performed at the π M1 hadron beam facility of the Paul Scherrer Institute. Local aging properties were investigated exposing the detector to a collimated 5.9 keV X-rays beam. The whole R&D activity with different gas mixtures has been performed with small 10×10 cm 2 triple-GEM detector prototypes. A full size prototype (module-0) constituted by two 20×24 cm 2 triple-GEM detectors, equipped with front-end electronics based on ASDQ chip, has been built and successfully tested, with the chosen Ar/CO 2 /CF 4 =45/15/40 gas mixture, at the electron test beam facility at the Laboratori Nazionali di Frascati.

74 citations


Cites methods from "Commissioning of the DA NE Beam Tes..."

  • ...The module-0 has been tested at the BTF [10] of the Laboratori Nazionali di Frascati....

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References
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Book
01 Jan 1952

911 citations

01 Jun 1957
TL;DR: In this paper, an expicit expression for the mean number of photons emitted per revolution in synchrotron radiation was derived, based on a simple one-dimensional integral, which allowed us to carry out a systematic analysis for high-energy charged particles.
Abstract: Although many features of synchrotron radiation have been well known for a long time (e.g., [1]), there is certainly room for further improvements and developments. In a recent investigation [2], starting from Schwinger’s monumental work on synchrotron radiation [3] many years ago, an expicit expression for the mean number 〈N〉 of photons emitted per revolution was derived involving a remarkably simple one-dimensional integral. This allowed us to carry out a systematic analysis for high-energy charged particles. Our new expression is given by

137 citations


"Commissioning of the DA NE Beam Tes..." refers methods in this paper

  • ...A simple estimate of the energy distribution out of a target of thickness t 1⁄4 x=X0 in radiation length units can be obtained using the well-known formula, in the so-called ‘‘Rossi approximation B’’ [7]:...

    [...]

Journal ArticleDOI
TL;DR: The KLOE detector is designed primarily for the study of direct CP violation in K0 decays as mentioned in this paper. But it is not suitable for the measurement of the electromagnetic calorimeter, which is the most demanding element of the detector.
Abstract: The KLOE detector is designed primarily for the study of direct CP violation in K0 decays. The electromagnetic calorimeter, EmC, is a most demanding element of the detector. Two prototypes of the EmC (one for the barrel and one for the end-cap region) have been built at Frascati and tested at PSI (Switzerland) using beams of electrons, muons and pions of 40 to 290 MeV/c momentum, and at the Frascati LADON facility using photons of 20 to 80 MeV. We observe excellent linearity from 20 to 290 MeV. The energy resolution is σ(E)/E ∼ 4.4% / ”E(GeV) and the time resolution is ∼ 34 ps/”E(GeV). We found little dependence on incidence angle and entry position. We also determined that some πμ identification is possible.

28 citations

Proceedings ArticleDOI
18 Jun 2001
TL;DR: In this article, the Frascati LNF /spl Phi/-factory has been providing luminosity for the KLOE experiment since July 2000, due to interspersed machine physics studies.
Abstract: DA/spl Phi/NE, the Frascati LNF /spl Phi/-factory, is providing luminosity for the KLOE experiment since July 2000. A steady increase of daily integrated luminosity in KLOE has been obtained, due to interspersed machine physics studies. The main results are: increase of single bunch luminosity by reduction of the effects of nonlinear terms in the machine, background reduction, refill of the colliding beams while keeping the KLOE detector taking data and increase of stable stored current. A fraction of machine time has been used to tune luminosity and reduce background in the DEAR configuration. The luminosity delivered to DEAR was sufficient to conclude the first phase of the experiment.

10 citations

Journal ArticleDOI
TL;DR: In this paper, the photons from single Bremsstrahlung at the two interaction points were used for DAΦNE luminosity measurements. But the background subtraction scheme was not considered.
Abstract: At DAΦNE luminosity measurements are performed by detecting the photons from single Bremsstrahlung at the two interaction points. Set up and measurement method are presented with special emphasis on background subtraction schemes, error evaluation and machine related issues.

8 citations