Possibility of a high-resolution nuclear radiation detector using a superconductor: I. Mean energy loss per excess quasiparticle |
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| Affiliation: | 1. INFN – Laboratori Nazionali del Gran Sasso, I-67010 Assergi (AQ), Italy;2. Max-Planck-Institut für Physik, D-80805 München, Germany;3. INFN – Sezione di Roma I, I-00185 Roma, Italy;4. Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy;5. Dipartimento di Scienze Fisiche e Chimiche, Università degli studi dell’Aquila, I-67100 Coppito (AQ), Italy;6. Gran Sasso Science Institute, I-67100 L’Aquila, Italy;1. Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, 119991, Russia;2. Ogarev Mordovian State University, Saransk, 430005, Russia;3. JSC ”Optical Materials”, St-Petersburg, 192177, Russia;1. Emory University, Department of Pathology and Laboratory Medicine, Atlanta, GA, USA;2. Biconcavity Inc., Lilburn, GA, USA;3. Case Western Reserve University, University Hospitals Cleveland Medical Center, Department of Pathology, Cleveland, OH, USA |
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| Abstract: | In order to study the application of superconductors as nuclear radiation detectors, estimation of the mean energy loss ϵ by radiations per excess quasiparticle in a superconductor has been attempted by taking into consideration the energy shared by the lattice. A detailed discussion on the energy loss processes of quasiparticles created by incident radiations is presented for the first time. It has been found that the upper limit of ϵ is 4 Δ, where Δ is half of the gap energy, but this value is expected to be further reduced. The present result indicates that, as far as ϵ is concerned, superconductors are applicable to a high-resolution nuclear radiation detector. |
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