Photo: Jens Olof Lasthein
[Appointments and Teaching]
Prefekt / Head of Department
Department of Physics
School of Engineering Sciences
KTH, Department of Physics,
Particle and Astroparticle Physics Group,
and The Oskar Klein Centre for Cosmoparticle Physics,
AlbaNova University Centre
Office tel: [+46]-(0)8-55378183
E-mail: pearce .at. particle.kth.se
I work within the field of astroparticle physics and conduct research on the high-energy universe through the study of X-/gamma-rays and cosmic rays. I am particularly interested in the design, developemnt and realisation of strategic satellite- and balloon-borne missions, as well as the analysis and astrophysical interpretation of resulting data-sets. Group homepage.
PAMELA. Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics.
A satellite-borne apparatus used to study charged particles in the cosmic radiation with a particular emphasis on antimatter (antiprotons, positrons, and anti-helium if we're lucky). Distortions to the antiparticle energy spectra may indicate the nature of the dark matter in the Universe. Launched from the Baikonur cosmodrome in Kazakhstan on June 15th 2006, and still going strong.Launch photographs.
I lead the PAMELA KTH group where we study cosmic antiparticles. I am also Principal Investigator for the PAMELA anticoincidence system - which was deisgned and built at KTH.
March 2010: I was awarded the 'Wallmarkska priset' by the Royal Swedish Academy of Sciences, "för hans uppfinningsrikedom i instrumentutveckling som resulterat i nya, uppmärksammade rön om förekomsten av antimateria i den kosmiska strålningen".
PAMELA Collaboration homepage.
Local PAMELA homepage.
[Selected papers and talks]
PoGOLite. Polarised Gamma-ray Observer.
A balloon-borne experiment designed to make pioneering measurements of the polarisation of cosmic gamma-rays (25 keV to 80 keV). Stands to open a new observational windows on high-energy celestial objects such as pulsars, active galactic nuclei, galactic X-ray binaries and accreting black holes. The maiden flight took place in July 2011 from Esrange, Northern Sweden but was unfortunately cut short due to a balloon leak. The payload was recovered mostly intact and we will try again during summer 2012.
I am Principal Investigator for PoGOLite.
[Selected papers and talks]
Irradiation tests of CsI(Tl) crystals for the GLAST (now Fermi) satellite.
Radiation tolerant opto-electronics for the ATLAS experiment at LHC.
Studies of bottom hadron lifetimes with e+e- collisions at LEP (PhD thesis)
Silicon-tungsten calorimetry for e+e- luminosity measurements at LEP (Master's thesis)
SEASA. Stockholm Educational Air Shower Array.
An outreach project which aims to bring the intellectual and technical challenge of cuttting-edge scientific research to high-school (gymnasium) students. The particular focus of the project is high energy cosmic rays. At first (2005), a network of scintillator detectors was established at schools in the Stockholm region allowing ultra-high energy cosmic ray air showers generated in the atmosphere to be observed. Now-a-days, and in conjunction with Vetenskapens Hus, we give high school students the chance to study cosmic rays using smaller detectors, such as the PFD described below and the Cosmic Ray Telescope.
PFD. Particle Flux Demonstrator. (a.k.a. 'fluxen')
The PFD is a small hand-held particle detector that was designed to follow Sweden's first astronaut, Christer Fuglesang, to the International Space Station (ISS) in 2006 onboard STS-116. Christer made it into space, but the PFD did not due to an administrative hitch. It was subsequently carried to ISS with STS-122 in 2008 and used by astronaunt Leo Eyharts. Christer finally used PFD on STS-128, which was launched in August 2009 (and I was there!). Data recorded with PFD has been used in undergraduate teaching at KTH, the SEASA project, and the Explore Space tour to Swedish high-schools in 2009. The PFD was returned to ISS on the final shuttle flight in 2011 and will remain there for the foreseeable future.
[Recent papers and talks]
/ Head of Department, Department of Physics, School of
Engineering Sciences, 2012 - .
Member, Appointments Commitee ('tjänsteförslagsnämnden'), School of Engineering Sciences, 2009 - . Vice chairman, 2011 - .
Member, 'Fakultetsrådets förtroenderåd', KTH. 2011 - .
Member, Board ('strategiskt råd') of the School of Engineering Sciences (representant för lärarna), 2009 - 2011.
Director of Undergraduate Studies ('studierektor'), Department of Physics, 2008 - 2011. Member of 'programråd för Teknisk Fysik', 2008 - 2011.
Responsible for 'Subatomic and astrophysics' specialisation within MSc Engineering Physics, 2010 - 2011.
Member, Central Grants Committee ('stipendierådet'), KTH, 2007 - 2010.
Swedish Delegate to EU COST Action MP1104 "Ploarisation as a tool to study the Solar System and beyond", 2011-.
Chairman, Svenska Rymdforskares Samarbetesgrupp (SRS), 2008 - 2011. Member of board, 2008 - . Member, Board of Rymdforum, 2008 - 2011.
Member, Evaluation Committee ('beredningsgrupp') for Subatomic Physics and Astrophysics, Swedish Research Council (VR), 2008, 2009.
Member, Steering Committee, Oskar Klein Centre for Cosmoparticle Physics, 2008 - .
Member, Board of the Particle and Astroparticle Physics Section of the Swedish Physical Society, 2000-2004; 2012-. Secretary, 2002-2004.
Member, Manne Siegbahn Memorial Lecture Committee, 2011 - .
Experimental Particle Physics (6 hp). 2001 - 2007.
SH2200 / SH2204 Astroparticle Physics (6 hp). 2001 - 2011.
Lectures for SI2170 Quantum Physics. 2008 - 2012.
Lectures for SH1010 fysik för den byggda miljö. 2010 - 2011.
Research project supervisor for SH1009/SH1012 Modern Physics. 2008 - .
Laboratory: measuring the lifetime of cosmic ray muons.
Laboratory: studying e+e- collisions at LEP.
Experimental techniques in particle astrophysics (7.5 hp).
SH3110 Experimental cosmic ray physics (7.5 hp). On demand.
SH3101 Particle detectors and their applications (7.5 hp). On demand.
||David Börgeson and
Daniel Nilsson, 'Development of a Mission Planning Tool
for the PoGOLite Pathfinder flight', 2011.
Theses (selection of most recent)
Verbois, 'Simulation studies for an X-ray polarisation
satellite', started 2012.
Anders Jonsson, 'Performance tests of PoGOLite', started 2011.
Terese Nordström, 'Statistical ion distribution functions from the IMA sensor on Venus Express', 2011 (supervised by Gabriella Stenberg, IRF).
Emma Leckström, 'Construction and testing of a cosmic-ray detector for the House of Science', 2009.
Pau Mallol, 'A cooling system for PoGOLite - a balloon-borne soft gamma-ray polarimeter', 2009.
Jaroslav Kazejev, 'Studies of neutron backgrounds for PoGOLite', 2007.
Bianca Iwan, 'Development of the PoGOLite star tracker system and construction of detector units for the Polarimeter Telescope Array', 2007.
Tomas Ekeberg, 'Polarimetry measurements with the PoGOLite prototype and simulations of polarisation in inverse Compton scattering processes', 2007.
Olle Engdegård, 'Studies of energy dependent X-ray polarisation with PoGOLite', 2006 (supervised with Felix Ryde).
Lisa Åström, 'A study of cosmic ray air shower properties', 2006.
Mózsi Kiss, 'Construction and laboratory tests of the PoGOLite prototype', 2006.
Tomi Ylinen, 'Constrcution and accelerator-based tests of the PoGOLite prototype', 2006.
Léopoldine Brand, 'Feasibility studies for particle identification on-board the International Space Station', 2005 (with Christer Fuglesang).
Henrik Johansson, 'Implementation and performance of a multi-detector station set-up for SEASA', 2005.
Viktor Andersson, 'Tests of scintillators and PMTs for the Polarised Gamma-ray Observer (PoGO)', 2005.
PoGOLite. Licentiate - May 2012. PhD - expected 2014.
PAMELA. Licentiate - November 2010. PhD - June 2012.
PAMELA. Licentiate - April 2010. PhD - June 2012.
PoGOLite. Licentiate - June 2008. PhD - April 2011.
Cecilia Marini Bettolo.
PoGOLite. Licentiate - April 2008. PhD - June 2010.
SEASA/PAMELA. Licentiate - June 2006. PhD - November 2008.
PAMELA. Licentiate - June 2004. PhD - March 2007.
PAMELA. Licentiate - June 2002. PhD - November 2004.
ATLAS/PAMELA. Licentiate - June 2000. PhD - December 2005.
Polarised X-ray astrophysics. May 2012 - . OKC fellow.
Cosmic ray propagation. 2009 - 2012. OKC fellow.
PAMELA. May 2008 - July 2010. Now at LPSC, Grenoble.
PoGOLite. January 2009 - 2011. Now appointed as 'Bitr. lektor'.
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