Experimental nuclear physics group at Department of Physics

Experimental nuclear physics group at Department of Physics in Zagreb Damir Bosnar Faculty of Science University of Zagreb, Croatia http: //www. phy. hr/~bosnar Nuclear Physics: • Education • Infrastructure • Scientific work

Undergraduate physics study: New Bologna curicculum, started in 2005, 5 years – master of physics 4 th year: Nuclear Physics, Particle Physics, (Solid State Physics, Atomic Physics) • Praktikum in modern physics, 4 th year (2009 – 12 students - Gamma spectroscopy with scintillators (and HPGe) - Range of alpha particles - Gamma-gamma correlations - Mion lifetime I • 2010 - 26 students 2011 - 24 students ) Praktikum in subatomic physics, 5 th year (2009 – 4 students) -Mion lifetime II, (velocity and angular distributions of cosmic mouns) -(Rutherford scattering (CAMAC)), Gamma spectroscopy with scintillators and HPGe -Compton scattering (f. ADC) -Positron annihilation (CAMAC) • Praktikum in nuclear physics, 5 th year (2009 - 4 students , 2010 - 3 students) Gamma spectroscopy with HPGe, Induced radioactivity, Scintillation detector, Statistics. Doctoral study – 4 years

Upgrade of Nuclear Physics Laboratory, 2003 international educational projects Na. I, Cs. I, LSO HPGe Muon lifetime Positron annihilation Sidetector

Equipment, nuclear physics lab

PET model – 48 Ba. F 2 detectors diploma work I. Friščić (2008) Gate simulations: Detector assembling and testing (Ba. F 2 + XP 2020 URQ) Data reconstruction MATLAB: I. Friščić at al. Vienna Conference on Instrumentation 2010

Scintillation fibre with Si. PM readout with signal digitizer, diploma work I. Žugec (2010) Signals: Acqiris DC 282, 4 channels, 2 -8 GS/s, 10 bit Root analysis Digital CFD and timing: Root Algorithms: Energies, Ba. F 2 22 Na Energies, HPGe: Time resolution, Ba. F 2, 60 Co : ~150 ps

Scientific work (PSI and MAMI) • D. B. : 1986 - middle of nineties PSI, pion absorpion in nuclei (Ph. D 1990), Ba-Ka-Za, LADS collaboration. • 1998 - Zagreb group member of A 1 - collaboration at MAMI MAINZ, electron scattering on nuclei and nucleus: - nucleon formfactors - pion production at threshold - strangeness electroproduction - hadrons in medium and NN correlations

Telescope of silicon detectors with signal digitizers A(e, e’ppi)B Ph. D of M. Makek 2009, 12 C(e, e’pp) 10 Be (now postdoc at Weizmann Institute in Israel) Digitized preamplifier signal: CAEN V 724, 100 MHz M. Makek, 18 th International Conference on Particles and Nuclei , PANIC 2008, Eilat, Israel

Zagreb: Positron annihilation spectroscopy zeolites, membranes, … <-D. Bosnar et al. Nucl Instr. Meth. A 581 (2007) 91 Acqiris DC 282, 4 channels, 2 -8 GS/s, 10 bit

n_tof collaboration ? • Infrastructure and experience • In 2011 new doctoral student • In 2011 application for new national funding - not big contribution other applications - national, international • Work (hardware, software) and physics (Ph. D) topics?

Possible initial activities: • Neutron resolution function • Decreasing resolution of TAC • Diamond detectors