Imperial College London

Dr Adam J. Dobbs

Faculty of Natural SciencesDepartment of Physics

Academic Visitor
 
 
 
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Contact

 

+44 (0)20 7594 7796a.dobbs07 Website CV

 
 
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Location

 

514Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

23 results found

Asfandiyarov R, Bayes R, Blackmore V, Bogomilov M, Coiling D, Dobbs AJ, Drielsma F, Drews M, Ellis M, Fedorov M, Franchini P, Gardener R, Greis JR, Hanlet PM, Heidt C, Hunt C, Kafka G, Karadzhov Y, Kurup A, Kyberd P, Littlefield M, Liu A, Long K, Maletic D, Martyniak J, Middleton S, Mohayai T, Nebrensky JJ, Nugent JC, Overton E, Pec V, Pidcott CE, Rajaram D, Rayner M, Reid ID, Rogers CT, Santos E, Savic M, Taylor I, Torun Y, Tunnell CD, Uchida MA, Verguilov V, Walaron K, Winter M, Wilbur Set al., 2019, MAUS: the MICE analysis user software, JOURNAL OF INSTRUMENTATION, Vol: 14, ISSN: 1748-0221

Journal article

Collaboration TMICE, Adams D, Adey D, Asfandiyarov R, Barber G, Bari AD, Bayes R, Bayliss V, Bertoni R, Blackmore V, Blondel A, Boehm J, Bogomilov M, Bonesini M, Booth CN, Bowring D, Boyd S, Bradshaw TW, Bross AD, Brown C, Charnley G, Chatzitheodoridis GT, Chignoli F, Chung M, Cline D, Cobb JH, Colling D, Collomb N, Cooke P, Courthold M, Cremaldi LM, DeMello A, Dick AJ, Dobbs A, Dornan P, Drielsma F, Dumbell K, Ellis M, Filthaut F, Franchini P, Freemire B, Gallagher A, Gamet R, Gardener RBS, Gourlay S, Grant A, Greis JR, Griffiths S, Hanlet P, Hanson GG, Hartnett T, Heidt C, Hodgson P, Hunt C, Ishimoto S, Jokovic D, Jurj PB, Kaplan DM, Karadzhov Y, Klier A, Kuno Y, Kurup A, Kyberd P, Lagrange J-B, Langlands J, Lau W, Li D, Li Z, Liu A, Long K, Lord T, Macwaters C, Maletic D, Martlew B, Martyniak J, Mazza R, Middleton S, Mohayai TA, Moss A, Muir A, Mullacrane I, Nebrensky JJ, Neuffer D, Nichols A, Nugent JC, Oates A, Orestano D, Overton E, Owens P, Palladino V, Palmer M, Pasternak J, Pec V, Pidcott C, Popovic M, Preece R, Prestemon S, Rajaram D, Ricciardi S, Robinson M, Rogers C, Ronald K, Rubinov P, Sakamoto H, Sanders DA, Sato A, Savic M, Snopok P, Smith PJ, Soler FJP, Song Y, Stanley T, Stokes G, Suezaki V, Summers DJ, Sung CK, Tang J, Tarrant J, Taylor I, Tortora L, Torun Y, Tsenov R, Tucker M, Uchida MA, Virostek S, Vankova-Kirilova G, Warburton P, Wilbur S, Wilson A, Witte H, White C, Whyte CG, Yang X, Young AR, Zisman Met al., 2018, First particle-by-particle measurement of emittance in the Muon Ionization Cooling Experiment, Publisher: arXiv

The Muon Ionization Cooling Experiment (MICE) collaboration seeks to demonstrate the feasibility of ionization cooling, the technique by which it is proposed to cool the muon beam at a future neutrino factory or muon collider. The emittance is measured from an ensemble of muons assembled from those that pass through the experiment. A pure muon ensemble is selected using a particle-identification system that can reject efficiently both pions and electrons. The position and momentum of each muon are measured using a high-precision scintillating-fibre tracker in a 4\,T solenoidal magnetic field. This paper presents the techniques used to reconstruct the phase-space distributions and reports the first particle-by-particle measurement of the emittance of the MICE Muon Beam as a function of muon-beam momentum.

Working paper

Bogomilov M, Long KR, The MICE collaboration, 2017, Lattice design and expected performance of the Muon Ionization Cooling Experiment demonstration of ionization cooling, Physical Review Accelerators and Beams, Vol: 20, ISSN: 2469-9888

Muon beams of low emittance provide the basis for the intense, well-characterized neutrino beams necessary to elucidate the physics of flavor at a neutrino factory and to provide lepton-antilepton collisions at energies of up to several TeV at a muon collider. The international Muon Ionization Cooling Experiment (MICE) aims to demonstrate ionization cooling, the technique by which it is proposed to reduce the phase-space volume occupied by the muon beam at such facilities. In an ionization-cooling channel, the muon beam passes through a material in which it loses energy. The energy lost is then replaced using rf cavities. The combined effect of energy loss and reacceleration is to reduce the transverse emittance of the beam (transverse cooling). A major revision of the scope of the project was carried out over the summer of 2014. The revised experiment can deliver a demonstration of ionization cooling. The design of the cooling demonstration experiment will be described together with its predicted cooling performance.

Journal article

Dobbs A, Hunt C, Long K, Santos E, Uchida MA, Kyberd P, Heidt C, Blot S, Overton Eet al., 2016, The reconstruction software for the MICE scintillating fibre trackers, Journal of Instrumentation, Vol: 11, ISSN: 1748-0221

The Muon Ionization Cooling Experiment (MICE) will demonstrate the principle of muon beam phase-space reduction via ionization cooling. Muon beam cooling will be required for the proposed Neutrino Factory or Muon Collider. The phase-space before and after the cooling cell must be measured precisely. This is achieved using two scintillating-fibre trackers, each placed in a solenoidal magnetic field. This paper describes the software reconstruction for the fibre trackers: the GEANT4 based simulation; the implementation of the geometry; digitisation; space-point reconstruction; pattern recognition; and the final track fit based on a Kalman filter. The performance of the software is evaluated by means of Monte Carlo studies and the precision of the final track reconstruction is evaluated.

Journal article

Bayes R, Bogomilov M, Carlisle T, Dobbs AJ, Drielsma F, Fayer S, Greis J, Heidt C, Hunt C, Jackson M, Kafka G, Karadzhov Y, Lane P, Nugent J, Pidcott C, Rajaram D, Richards A, Robinson M, Rogers C, Santos E, Tunnell C, Uchida MA, Wilson A, Verguilov Vet al., 2016, The MICE Analysis User Software (MAUS)

The MICE Analysis User Software (MAUS) is the software framework used by the MICE collaboration to provide Monte Carlo simulation of the beam and detector responses (via GEANT4), both offline and online data reconstruction and various data analysis tools. It also provides a framework for collaborators to build their own offline data-analysis tools.

Software

Adams D, Alekou A, Apollonio M, Asfandiyarov R, Barber G, Barclay P, de Bari A, Bayes R, Bayliss V, Bertoni R, Blackmore VJ, Blondel A, Blot S, Bogomilov M, Bonesini M, Booth CN, Bowring D, Boyd S, Brashaw TW, Bravar U, Bross AD, Capponi M, Carlisle T, Cecchet G, Charnley C, Chignoli F, Cline D, Cobb JH, Colling G, Collomb N, Coney L, Cooke P, Courthold M, Cremaldi LM, DeMello A, Dick A, Dobbs A, Dornan P, Drews M, Drielsma F, Filthaut F, Fitzpatrick T, Franchini P, Francis V, Fry L, Gallagher A, Gamet R, Gardener R, Gourlay S, Grant A, Greis JR, Griffiths S, Hanlet P, Hansen OM, Hanson GG, Hart TL, Hartnett T, Hayler T, Heidt C, Hills M, Hodgson P, Hunt C, Iaciofano A, Ishimoto S, Kafka G, Kaplan DM, Karadzhov Y, Kim YK, Kuno Y, Kyberd P, Lagrange J-B, Langlands J, Lau W, Leonova M, Li D, Lintern A, Littlefield M, Long K, Luo T, Macwaters C, Martlew B, Martyniak J, Mazza R, Middleton S, Moretti A, Moss A, Muir A, Mullacrane I, Nebrensky JJ, Neuffer D, Nichols A, Nicholson R, Nugent JC, Oates A, Onel Y, Orestano D, Overton E, Owens P, Palladino V, Pasternak J, Pastore F, Pidcott C, Popovic M, Preece R, Prestemon S, Rajaram D, Ramberger S, Rayner MA, Ricciardi S, Roberts TJ, Robinson M, Rogers C, Ronald K, Rubinov P, Rucinski P, Sakamato H, Sanders DA, Santos E, Savidge T, Smith PJ, Snopok P, Soler FJP, Speirs D, Stanley T, Stokes G, Summers DJ, Tarrant J, Taylor I, Tortora L, Torun Y, Tsenov R, Tunnell CD, Uchida MA, Vankova-Kirilova G, Virostek S, Vretenar M, Warburton P, Watson S, White C, Whyte CG, Wilson A, Winter M, Yang X, Young A, Zisman Met al., 2016, Pion contamination in the MICE muon beam, Journal of Instrumentation, Vol: 11, ISSN: 1748-0221

The international Muon Ionization Cooling Experiment (MICE) will perform a systematic investigation of ionization cooling with muon beams of momentum between 140 and 240 MeV/c at the Rutherford Appleton Laboratory ISIS facility. The measurement of ionization cooling in MICE relies on the selection of a pure sample of muons that traverse the experiment. To make this selection, the MICE Muon Beam is designed to deliver a beam of muons with less than ~1% contamination. To make the final muon selection, MICE employs a particle-identification (PID) system upstream and downstream of the cooling cell. The PID system includes time-of-flight hodoscopes, threshold-Cherenkov counters and calorimetry. The upper limit for the pion contamination measured in this paper is fπ < 1.4% at 90% C.L., including systematic uncertainties. Therefore, the MICE Muon Beam is able to meet the stringent pion-contamination requirements of the study of ionization cooling.

Journal article

Adams D, Alekou A, Apollonio M, Asfandiyarov R, Barber G, Barclay P, de Bari A, Bayes R, Bayliss V, Bene P, Bertoni R, Blackmore VJ, Blondel A, Blot S, Bogomilov M, Bonesini M, Booth CN, Bowring D, Boyd S, Bradshaw TW, Bravar U, Bross AD, Cadoux F, Capponi M, Carlisle T, Cecchet G, Charnley C, Chignoli F, Cline D, Cobb JH, Colling G, Collomb N, Coney L, Cooke P, Courthold M, Cremaldi LM, Debieux S, DeMello A, Dick A, Dobbs A, Dornan P, Drielsma F, Filthaut F, Fitzpatrick T, Franchini P, Francis V, Fry L, Gallagher A, Gamet R, Gardener R, Gourlay S, Grant A, Graulich JS, Greis J, Griffiths S, Hanlet P, Hansen OM, Hanson GG, Hart TL, Hartnett T, Hayler T, Heidt C, Hills M, Hodgson P, Hunt C, Husi C, Iaciofano A, Ishimoto S, Kafka G, Kaplan DM, Karadzhov Y, Kim YK, Kuno Y, Kyberd P, Lagrange J-B, Langlands J, Lau W, Leonova M, Li D, Lintern A, Littlefield M, Long K, Luo T, Macwaters C, Martlew B, Martyniak J, Masciocchi F, Mazza R, Middleton S, Moretti A, Moss A, Muir A, Mullacrane I, Nebrensky JJ, Neuffer D, Nichols A, Nicholson R, Nicola L, Messomo EN, Nugent JC, Oates A, Onel Y, Orestano D, Overton E, Owens P, Palladino V, Pasternak J, Pastore F, Pidcott C, Popovic M, Preece R, Prestemon S, Rajaram D, Ramberger S, Rayner MA, Ricciardi S, Roberts TJ, Robinson M, Rogers C, Ronald K, Rothenfusser K, Rubinov P, Rucinski P, Sakamato H, Sanders DA, Sandstrom R, Santos E, Savidge T, Smith PJ, Snopok P, Soler FJP, Speirs D, Stanley T, Stokes G, Summers DJ, Tarrant J, Taylor I, Tortora L, Torun Y, Tsenov R, Tunnell CD, Uchida MA, Vankova-Kirilova G, Virostek S, Vretenar M, Warburton P, Watson S, White C, Whyte CG, Wilson A, Wisting H, Yang X, Young A, Zisman Met al., 2015, Electron-muon ranger: performance in the MICE muon beam, Journal of Instrumentation, Vol: 10, ISSN: 1748-0221

Journal article

Adey D, Agarwalla SK, Ankenbrandt CM, Asfandiyarov R, Back JJ, Barker G, Baussan E, Bayes R, Bhadra S, Blackmore V, Blondel A, Bogacz SA, Booth C, Boyd SB, Bramsiepe SG, Bravar A, Brice SJ, Bross AD, Cadoux F, Cease H, Cervera A, Cobb J, Colling D, Coloma P, Coney L, Dobbs A, Dobson J, Donini A, Dornan P, Dracos M, Dufour F, Edgecock R, Geelhoed M, Uchida MA, Ghosh T, Gomez-Cadenas JJ, de Gouvea A, Haesler A, Hanson G, Harrison PF, Hartz M, Hernandez P, Hernando Morata JA, Hodgson P, Huber P, Izmaylov A, Karadzhov Y, Kobilarcik T, Kopp J, Kormos L, Korzenev A, Kuno Y, Kurup A, Kyberd P, Lagrange JB, Laing A, Liu A, Link JM, Long K, Mahn K, Mariani C, Martin C, Martin J, McCauley N, McDonald KT, Mena O, Mishra SR, Mokhov N, Morfin J, Mori Y, Murray W, Neuffer D, Nichol R, Noah E, Palmer MA, Parke S, Pascoli S, Pasternak J, Plunkett R, Popovic M, Ratoff P, Ravonel M, Rayner M, Ricciardi S, Rogers C, Rubinov P, Santos E, Sato A, Sen T, Scantamburlo E, Sedgbeer JK, Smith DR, Smith PJ, Sobczyk JT, Soby L, Soler FJP, Sorel M, Snopok P, Stamoulis P, Stanco L, Striganov S, Tanaka HA, Taylor IJ, Touramanis C, Tunnell CD, Uchida Y, Vassilopoulos N, Wascko MO, Weber A, Wilking MJ, Wildner E, Winter Wet al., 2014, Light sterile neutrino sensitivity at the nuSTORM facility, Physical Review D: Particles, Fields, Gravitation and Cosmology, Vol: 89, ISSN: 1550-7998

A facility that can deliver beams of electron and muon neutrinos from the decay of a stored muon beam has the potential to unambiguously resolve the issue of the evidence for light sterile neutrinos that arises in short-baseline neutrino oscillation experiments and from estimates of the effective number of neutrino flavors from fits to cosmological data. In this paper, we show that the nuSTORM facility, with stored muons of 3.8  GeV/c ± 10%, will be able to carry out a conclusive muon neutrino appearance search for sterile neutrinos and test the LSND and MiniBooNE experimental signals with 10σ sensitivity, even assuming conservative estimates for the systematic uncertainties. This experiment would add greatly to our knowledge of the contribution of light sterile neutrinos to the number of effective neutrino flavors from the abundance of primordial helium production and from constraints on neutrino energy density from the cosmic microwave background. The appearance search is complemented by a simultaneous muon neutrino disappearance analysis that will facilitate tests of various sterile neutrino models.

Journal article

Adams D, Collaboration M, Adey D, Alekou A, Apollonio M, Asfandiyarov R, Back J, Barber G, Barclay P, De Bari A, Bayes R, Bayliss V, Bertoni R, Blackmore VJ, Blondel A, Blot S, Bogomilov M, Bonesini M, Booth CN, Bowring D, Boyd S, Bradshaw TW, Bravar U, Bross AD, Capponi M, Carlisle T, Cecchet G, Charnley G, Cobb JH, Colling D, Collomb N, Coney L, Cooke P, Courthold M, Cremaldi LM, DeMello A, Dick AJ, Dobbs A, Dornan P, Fayer S, Filthaut F, Fish A, Fitzpatrick T, Fletcher R, Forrest D, Francis V, Freemire B, Fry L, Gallagher A, Gamet R, Gourlay S, Grant A, Graulich JS, Griffiths S, Hanlet P, Hansen OM, Hanson GG, Harrison P, Hart TL, Hartnett T, Hayler T, Heidt C, Hills M, Hodgson P, Hunt C, Iaciofano A, Ishimoto S, Kafka G, Kaplan DM, Karadzhov Y, Kim YK, Kolev D, Kuno Y, Kyberd P, Lau W, Leaver J, Leonova M, Li D, Lintern A, Littlefield M, Long K, Lucchini G, Luo T, Macwaters C, Martlew B, Martyniak J, Middleton S, Moretti A, Moss A, Muir A, Mullacrane I, Nebrensky JJ, Neuffer D, Nichols A, Nicholson R, Nugent JC, Onel Y, Orestano D, Overton E, Owens P, Palladino V, Palmer RB, Pasternak J, Pastore F, Pidcott C, Popovic M, Preece R, Prestemon S, Rajaram D, Ramberger S, Rayner MA, Ricciardi S, Richards A, Roberts TJ, Robinson M, Rogers C, Ronald K, Rubinov P, Rucinski R, Rusinov I, Sakamoto H, Sanders DA, Santos E, Savidge T, Smith PJ, Snopok P, Soler FJP, Stanley T, Summers DJ, Takahashi M, Tarrant J, Taylor I, Tortora L, Torun Y, Tsenov R, Tunnell CD, Vankova G, Verguilov V, Virostek SP, Vretenar M, Walaron K, Watson S, White C, Whyte CG, Wilson A, Wisting H, Zisman MSet al., 2013, Characterisation of the muon beams for the Muon Ionisation Cooling Experiment, EUROPEAN PHYSICAL JOURNAL C, Vol: 73, ISSN: 1434-6044

Journal article

Adey D, Agarwalla SK, Ankenbrandt CM, Asfandiyarov R, Back JJ, Barker G, Baussan E, Bayes R, Bhadra S, Blackmore V, Blondel A, Bogacz SA, Booth C, Boyd SB, Bravar A, Brice SJ, Bross AD, Cadoux F, Cease H, Cervera A, Cobb J, Colling D, Coloma P, Coney L, Dobbs A, Dobson J, Donini A, Dornan P, Dracos M, Dufour F, Edgecock R, Evans J, Geelhoed M, George MA, Ghosh T, Gomez-Cadenas JJ, Gouvea AD, Haesler A, Hanson G, Harrison PF, Hartz M, Hernandez P, Morata JAH, Hodgson P, Huber P, Izmaylov A, Karadzhov Y, Kobilarcik T, Kopp J, Kormos L, Korzenev A, Kuno Y, Kurup A, Kyberd P, Lagrange JB, Laing A, Liud A, Link JM, Long K, Mahn K, Mariani C, Martin C, Martin J, McCauley N, McDonald KT, Mena O, Mishra SR, Mokhov N, Morfin J, Mori Y, Murray W, Neuffer D, Nichol R, Noah E, Palmer MA, Parke S, Pascoli S, Pasternak J, Popovic M, Ratoff P, Ravonel M, Rayner M, Ricciardi S, Rogers C, Rubinov P, Santos E, Sato A, Sen T, Scantamburlo E, Sedgbeer JK, Smith DR, Smith PJ, Sobczyk JT, Soby L, Soler FJP, Soldner-Rembold S, Sorel M, Snopok P, Stamoulis P, Stanco L, Striganov S, Tanaka HA, Taylor IJ, Touramanis C, Tunnell CD, Uchida Y, Vassilopoulos N, Wascko MO, Weber A, Wilking MJ, Wildner E, Winter W, Yang UKet al., 2013, nuSTORM - Neutrinos from STORed Muons: Proposal to the Fermilab PAC

The nuSTORM facility has been designed to deliver beams of electron neutrinosand muon neutrinos (and their anti-particles) from the decay of a stored muonbeam with a central momentum of 3.8 GeV/c and a momentum acceptance of 10%. Thefacility is unique in that it will: 1. Allow searches for sterile neutrinos ofexquisite sensitivity to be carried out; 2. Serve future long- andshort-baseline neutrino-oscillation programs by providing definitivemeasurements of electron neutrino and muon neutrino scattering cross sectionsoff nuclei with percent-level precision; and 3. Constitutes the crucial firststep in the development of muon accelerators as a powerful new technique forparticle physics. The document describes the facility in detail anddemonstrates its physics capabilities. This document was submitted to theFermilab Physics Advisory Committee in consideration for Stage I approval.

Working paper

Dobbs A, Forrest D, Soler FJP, 2013, The MICE luminosity monitor, Pages: 012084-012084

Conference paper

Booth CN, Hodgson P, Howlett L, Nicholson R, Overton E, otherset al., 2013, The design, construction and performance of the MICE target, JINST, Vol: 8, Pages: P03006-P03006

Journal article

Dobbs AJ, Pasternak J, Adams DJ, Overton E, Smith PJet al., 2012, The MICE Muon Beam Line and Host Accelerator Beam Bump

Conference paper

Bogomilov M, others, 2012, The MICE Muon Beam on ISIS and the beam-line instrumentation of the Muon Ionization Cooling Experiment, JINST, Vol: 7, Pages: P05009-P05009

Journal article

Dobbs A, Coney L, Adey D, 2011, MICE Muon Beamline Particle Rate and Related Beam Loss in the ISIS Synchrotron, Pages: 874-876-874-876

Conference paper

Bravar U, Bogomilov M, Karadzhov Y, Kolev D, Russinov I, otherset al., 2011, MICE: the Muon Ionization Cooling Experiment. Step I: First Measurement of Emittance with Particle Physics Detectors

Conference paper

Dobbs A, Rayner M, 2011, Progress in the Construction of the MICE Cooling Channel and First Measurements, Pages: 043-043

Conference paper

Coney L, Dobbs A, 2011, Particle Production in the MICE Beamline, Pages: 214-216-214-216

Conference paper

Dobbs AJ, Alekou A, Long KR, 2011, The MICE Muon Beamline and Induced Host Accelerator Beam Loss, Pages: 148-150-148-150

Conference paper

Dobbs AJ, 2011, Particle Rate and Host Accelerator Beam Loss on the MICE Experiment

Conference paper

Coney L, Dobbs A, Karadzhov Y, 2010, Particle Production in the MICE Beamline, Pages: 3530-3532-3530-3532

Conference paper

Dobbs A, Apollonio M, Long K, Pasternak J, Rogers Cet al., 2010, The MICE Muon Beam: Status and Progress, Pages: 3467-3469-3467-3469

Conference paper

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Journal article

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