Conveners
Machine Det. Interface and Beam Instr.
- Mary Anne Cummings (Muons, Inc.)
Machine Det. Interface and Beam Instr.
- Victor Scarpine (FNAL)
Machine Det. Interface and Beam Instr.
- Manfred Wendt (Fermi Naional Accelerator Laboratory)
Machine Det. Interface and Beam Instr.
- Rainer Bartoldus (SLAC National Accelerator Laboratory)
Machine Det. Interface and Beam Instr.
- Glen White (SLAC)
Machine Det. Interface and Beam Instr.
- Angeles Faus-Golfe (Instituto de Fisica Corpuscular (IFIC) UV-CSIC)
Machine Det. Interface and Beam Instr.
- Glenn Christian (University of Oxford)
Erich Griesmeyer
(CERN)
09/06/2011, 14:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
Diamond detectors are currently exciting a lot of attention. Their high radiation tolerance, their rapid response in the order of nanoseconds, and the low dark current in the order of pico-ampere make them excellent particle detectors. It has long been known that diamonds fluoresce and generate electrical signals when irradiated. The emergence of single-crystal and poly-crystalline CVD...
Dr
PAUL SCHOESSOW
(Euclid Techlabs)
09/06/2011, 14:30
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The collimation systems of the Compact Linear Collider (CLIC) and
International Linear Collider (ILC) need to simultaneously fulfill
three different functions. These systems must (1) provide adequate
halo collimation to reduce the detector background, (2) ensure
collimator survival and machine protection against missteered beams,
and (3) not significantly amplify incoming trajectory...
Dr
Maria Elena Castro Carballo
(Deutsches Elektronen-Synchrotron (DESY))
09/06/2011, 14:50
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The Beam Conditions and Radiation Monitoring System, BRM, is installed in CMS to protect the detector and to provide feedback to LHC on beam conditions. It is composed of several sub-systems that measure the radiation level close to or inside all sub-detectors, monitor the beam halo conditions with different time resolution. Thus it supports beam tuning and warns CMS in case of adverse beam...
Matthew James Fisher
(High Energy Physics Group, Department of Physics - Ohio State Un)
09/06/2011, 15:10
Machine Detector Interface and Beam Instrumentation
Oral Presentation
Beam conditions and the potential detector damage resulting from their anomalies have pushed the LHC experiments to build their own beam monitoring devices. The ATLAS Beam Conditions Monitor (BCM) consists of two stations (forward and backward) of detectors each with four modules. The sensors are required to tolerate doses up to 500 kGy and in excess of 10^15 charged particles per cm2 over the...
Dr
Eva Barbara Holzer
(CERN)
10/06/2011, 14:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The energy stored in the nominal LHC beams is two times 360 MJ, 100 times the energy of the TEVATRON. As little as 1 mJ/cc deposited energy quenches a magnet at 7 TeV and 1 J/cc causes magnet damage. The beam dumps are the only places to safely dispose of this beam. One of the key systems for machine protection is the beam loss monitoring (BLM) system. About 3600 Ionization chambers are...
Mr
Hendrik Jansen
(CERN)
10/06/2011, 14:30
Machine Detector Interface and Beam Instrumentation
Oral Presentation
A Beam Loss Monitor for the LHC provides the most accurate results if it is placed as close to the beam pipe as possible, hence within the cold mass of the magnets. For the new series of triplet magnets, the Beam Instrumentation Group seeks a detector concept that provides full functionality at ultra-cold temperatures (1.9 K). A fast response time, excellent radiation hardness, long durability...
Arden Warner
(Fermi Naional Accelerator Laboratory)
10/06/2011, 14:50
Machine Detector Interface and Beam Instrumentation
Oral Presentation
Radiation hard helium gas ionization chambers capable of operating in vacuum at temperatures ranging from 5K to 350K are designed, fabricated and tested and will be used inside the cryostats at Fermilab’s Superconducting Radiofrequency beam test facility. The chamber vessel is made of stainless steel and all materials used including seals are known to be radiation hard and suitable for...
Dmitri Smirnov
(BNL)
10/06/2011, 15:10
Machine Detector Interface and Beam Instrumentation
Oral Presentation
At the Relativistic Heavy Ion Collider (RHIC) the measurements of the proton beam polarization are carried out by polarimeters whose operation is based on the detection of recoil products from proton-proton (pp) and proton-Carbon (pC) elastic scattering. The pp polarimeter with a highly polarized hydrogen jet target provides an absolute scale for the polarization measurement; while the pC...
Mr
Gianni Tassotto
(Fermilab)
10/06/2011, 16:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The profile monitor instrumentation for the M Test beam includes a suite of types each suited for a range of beam fluxes and energies. The types of detectors and the description of the characteristics of each will be discussed including experimental types using scintillating plastic fibers for ultra-low fluxes.
Dr
Victor Scarpine
(FNAL)
10/06/2011, 16:20
Machine Detector Interface and Beam Instrumentation
Oral Presentation
A number of particle physics experiments are being proposed as part of the Department of Energy HEP Intensity Frontier. Many of these experiments will utilize megawatt level proton beams onto targets to form secondary beams such as muons, kaons and neutrinos. These experiments require transverse size measurements of the incident proton beam onto target for each beam spill. Because of the high...
Douglas Jensen
(Fermilab)
10/06/2011, 16:40
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The Fermilab Main Injector has been delivering a 120 GeV proton beam to the MI
neutrino experiments for some years. The beam intensity, position and size have
been monitored using toroids, beam position monitors, and SEMs. The beam position
has been controlled using the BPM system. The SEM closest to the target has been
exposed to more thatn 1E21 protons. Ti and C wire SEMs are being...
Dr
Glen White
(SLAC)
11/06/2011, 08:30
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The aim of the ATF2 test accelerator at KEK, Japan is to demonstrate the feasibility of the compact, local-chromaticity correction style of final focus system (FFS) optics envisioned for the next generation of energy frontier lepton linear colliders (such as ILC or CLIC.) It also serves as a test bed for ILC/CLIC related diagnostic devices.
The magnetic optics employed in the ATF2 FFS has...
Ms
Jacqueline YAN
(The University of Tokyo)
11/06/2011, 09:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The Shintake Monitor (IPBSM) is a laser interferometer – type beam size monitor installed at the virtual interaction point of ATF2, a test facility for ILC. It is the only currently existing system capable of measuring electron beam sizes below 100 nm, and plays a role in achieving some of ATF2`s major goals; realizing the 37 nm design vertical beam size and verifying a novel final focus...
Mr
Yohei Yamaguchi
(The University of Tokyo)
11/06/2011, 09:20
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The Accelerator Test Facility 2 (ATF2) is an extension of the ATF beamline extraction featuring an ILC-type final focus system. Among the project`s major purposes is establishment of hardware and beam handling technologies aimed at transverse focusing of ATF`s electron beams to below 40nm in the vertical. A laser-interferometer type high resolution beam size monitor named the "Shintake...
Dr
Angeles Faus-Golfe
(Instituto de Fisica Corpuscular (IFIC) UV-CSIC)
11/06/2011, 09:40
Machine Detector Interface and Beam Instrumentation
Oral Presentation
In this paper we describe the first measurements performed during fall 2010- begin 2011, software development, realistic simulations and new hardware improvements of a Multi-Optical Transition Radiation System installed in the beam diagnostic section of the Extraction (EXT) line of ATF2, close to the Multi Wire Scanner System. 2D emittance measurements are done with success and the system is...
Glenn Christian
(John Adams Institute for Accelerator Science)
11/06/2011, 10:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The FONT5 upstream beam-based feedback system at ATF2 is designed to correct the position and angle jitter at the entrance to the ATF2 final-focus system, and also to demonstrate a prototype intra-train feedback system for the International Linear Collider interaction point. We discuss the hardware, from stripline BPMs to kickers, and RF and digital signal processing, as well as presenting...
Dr
Carsten Hast
(SLAC)
11/06/2011, 11:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
End Station A Test Beam (ESTB) is a beam line at SLAC using a small fraction of the bunches of the 13.6 GeV electron beam from the Linac Coherent Light Source (LCLS), restoring test beam capabilities in the large End Station A (ESA) experimental hall. ESTB will provide one of a kind test beam essential for developing accelerator instrumentation and accelerator R&D, performing particle and...
Dr
Hayg Guler
(LLR/Ecole Polytechnique, France)
11/06/2011, 11:25
Machine Detector Interface and Beam Instrumentation
Oral Presentation
In electron machines, neutrons near the interaction region are dominantly produced by photonuclear processes in electromagnetic showers initiated by lost particles in dense materials. The photonuclear cross-section and the high multiplicity of low-energy photons make the low-energy regime vastly dominating this neutron production. ATF2, operating at 1.3 GeV, offers most of the phase space to...
Mr
Javed Arif Syed
(A.M.U., Aligarh)
11/06/2011, 11:45
Machine Detector Interface and Beam Instrumentation
Oral Presentation
In spite of all prerequisite geoligical study based precautions, the sites of nuclear power plants are also susceptible to seismic vibrations and their consequent effects. The effect of the ongoing nuclear tragedy in Japan caused by an earthquake and its consequent tsunami on March 11, 2011 is currently beyond contemplations. It has led to a rethinking on nuclear power stations by various...
Shoji Uno
(KEK, Tsukuba)
11/06/2011, 14:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The Belle experiment, operated at the asymmetric electron-positron collider KEKB,
had accumulated a data samle with an integrated luminosity of more than 1 at^{-1}
before the shutdown in June 2010.
We have started upgrading both the accelerator and detector, SuperKEKB and Belle-II,
to achieve the target luminosity of 8x10^35 cm^{-2}s^{-1}.
With the increased luminosity, the beam...
Pierrick Hanlet
(Illinois Institute of Technology)
11/06/2011, 14:25
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The muon ionization cooling experiment (MICE) is a strategic R&D project intending to demonstrate the only practical solution to prepare high brilliance beams necessary for a neutrino factory or muon colliders. MICE is under development at the Rutherford Appleton Laboratory (UK). It comprises a dedicated beam line to generate a range of input emittance and momentum, with time-of-flight and...
Dr
Stephen Kahn
(Muons, Inc.)
11/06/2011, 14:45
Machine Detector Interface and Beam Instrumentation
Oral Presentation
Muon colliders are considered to be an important future energy frontier accelerator. It is possible to build a large muon collider as a circular machine, even at multi-TeV energies, due to the greatly reduced synchrotron radiation expected from muons. In addition to the same physics processes present in an electron collider, a muon collider will have the potential to produce s-channel...
Dr
Mary Anne Cummings
(Muons, Inc.)
11/06/2011, 15:05
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The challenges for detectors at a Muon Collider come from decay products of muons within the collider ring. Earlier designs have featured massive shielding cones in the forward regions to reduce these backgrounds into a detector, creating detector dead zone and limiting the physics potential. Updated muon collider designs that entail lower IP emittances can deliver the same luminosity with...
Rainer Bartoldus
(SLAC)
13/06/2011, 14:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
During stable-beams operations of the LHC, the ATLAS High Level Trigger (HLT) offers the fastest and most precise online measurement available of the position, size and orientation of the luminous region at the interaction point. Taking advantage of the high rate of triggered events, a dedicated algorithm is executed on the HLT processor farm of several hundred nodes that uses tracks...
Alexander Sukhanov
(Fermilab)
13/06/2011, 14:25
Machine Detector Interface and Beam Instrumentation
Oral Presentation
We describe performance of the detector used for luminosity measurements in the CDF experiment in Run 2 at the Tevatron. The detector consists of low-mass gaseous Cherenkov counters with high light yield (about 100 photo-electrons) and monitors the process of inelastic proton-anti-proton scattering. This detector allows for several methods of precise luminosity measurements at peak...
luciano Ristori
(INFN, Pisa)
13/06/2011, 14:50
Machine Detector Interface and Beam Instrumentation
Oral Presentation
In the CDF experiment at the Tevatron Collider, the 3D position and size of the beam spot is monitored in real time with a precision of order one micron and with a latency of less than one minute. This is necessary for the correct operation of the Silicon Vertex Trigger and is accomplished with a mix of off-the-shelf processors and specialized hardware. Monitoring the 3D position of the...
Ms
Michelle Prewitt
(Rice University)
13/06/2011, 15:15
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The D0 Luminosity Monitor (LM) plays a crucial role in D0 physics analyses by providing the normalization for many cross section measurements. The detector consists of two sets of 24 scintillator wedges read out with photomultiplier tubes. The detector is located in the forward regions surrounding the beam pipe, covering a pseudorapidity range of $2.7 < |\eta| < 4.4$. The LM is sensitive to a...
Dr
Jesus Orduna
(Rice University)
13/06/2011, 15:40
Machine Detector Interface and Beam Instrumentation
Oral Presentation
The D0 Luminosity Monitor (LM) employs scintillating wedges with photomultiplier tube readout to detect particles from inelastic collisions in p-pbar interactions at the Fermilab Tevatron Collider. The LM provides the luminosity measurement used for normalization in D0 physics results. In the course of normal Tevatron operations these scintillators accrue significant radiation damage. ...
Zhijia SUN
(Institute of High Energy Physics, CAS)
13/06/2011, 16:00
Machine Detector Interface and Beam Instrumentation
Oral Presentation
A thermal neutron beam monitor with Gas Electron Multiplier (GEM) as a detector is developed to meet the needs of the next generation neutron facilities. A prototype chamber has been constructed with two 50mm x 50mm GEM foils. Enriched boron-10 is coated on one surface of aluminum cathode plate as the neutron convertor. 96 channel pads with area 4 mm x 4mm each are used for fast signal...
