1 / 9

IEEE short course C alorimetry

IEEE short course C alorimetry. Erika Garutti (DESY Hamburg, Germany) erika.garutti@desy.de Michele Livan (University of Pavia, Italy) Frank Simon (MPI Munich, Germany). Technical information. Outline of the course. Particle detection.

taipa
Download Presentation

IEEE short course C alorimetry

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. IEEE short courseCalorimetry Erika Garutti (DESY Hamburg, Germany) erika.garutti@desy.de Michele Livan (University of Pavia, Italy) Frank Simon (MPI Munich, Germany) IEEE short course: Calorimetry

  2. Technical information IEEE short course: Calorimetry

  3. Outline of the course IEEE short course: Calorimetry

  4. Particle detection High energy physics (but also photon-science, nuclear medicine, homeland security) is concerned with the detection of particles • The detector sees only“stable” particles: • Electrons, muons, photons, pions, kaons, protons and neutrons • In order to detect a particle, it has to interact - and deposit energy • Ultimately, the signals are obtained from the interactions of charged particles • Neutral particles (gammas, neutrons) have to transfer their energy to charged particles to be measured  calorimeters IEEE short course: Calorimetry

  5. Particle detection IEEE short course: Calorimetry

  6. E e- S Convert energyEof incident particles to detector responseS: S E Calorimetry: a simpleconcept particle showers electric optical thermic acoustic IEEE short course: Calorimetry

  7. E e- S Homogeneous vs non-homogeneous • Ideal calorimeter: • Contain all energy of one particle+ • Convert all energy into measurable signal • Homogeneous (i.e. crystal) • In practice: • Homogeneous calorimeter only possible for electrons (shorter showers) • Sometimes too expensive also for electrons • Lateral segmentation possible but (so far) no depth information • Alternative solution Sampling calorimeter • Contain all energy of one particle + • Sample its energy during shower development ( Evisible Etotal) • Many different designs • - calorimeter imbiss: sandwich, shashlik, spaghetti • liquid versions: LAr • … IEEE short course: Calorimetry

  8. How to “look” at the signal • Convert particle energy to light: • scintillator (org. / in-org.) • & measure light: • PMT / APD / HPD / SiPM … • Measure ionization E: • gas • noble liquids • semiconductors • & measure charge signal • Measure temperature: • specialized detectors for:DM, solar ns, magnetic monopoles, double b-decay • very precise measurements of small energy deposits • phenomena that play a role in the 1 Kelvin to few milli-Kelvin range IEEE short course: Calorimetry

  9. Choosing a calorimeter Many factors: Choices: active, passive materials, longitudinal and lateral segmentation etc. Physics, radiation levels, environmental conditions, budget CAVEAT: Test beam results sometimes misleading • Signals large integration time or signal integration over large volume could be not possible in real experimental conditions • Miscellaneous materials (cables, support structures, electronics etc.) present in the real experiment can spoil resolution • Jet resolution not measurable in a test beam IEEE short course: Calorimetry

More Related