title: Mini-TEPCs for radiation therapy.
abstract: A mini-tissue-equivalent proportional-counter (TEPC) has been constructed to study the possibility to manufacture mini-counters without field-shaping tubes for radiation therapy. The mini-TEPC can be assembled with and without field-shaping tubes. It can be equipped with a mini-alpha source for a precise lineal energy calibration. After the positive conclusions of this study, a slim TEPC has been designed and constructed. The slim TEPC has an external diameter of only 2.7 mm. It has been tested with therapeutic proton beams and gamma ray sources.
authors.affiliation: Dipartimento di Fisica dell'Università di Padova, via Marzolo 8, I-35100 Padua, Italy.
authors.forename: L
authors.initials: L
authors.lastname: De Nardo
authors.forename: V
authors.initials: V
authors.lastname: Cesari
authors.forename: G
authors.initials: G
authors.lastname: Donà
authors.forename: G
authors.initials: G
authors.lastname: Magrin
authors.forename: P
authors.initials: P
authors.lastname: Colautti
authors.forename: V
authors.initials: V
authors.lastname: Conte
authors.forename: G
authors.initials: G
authors.lastname: Tornielli
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005240:Feasibility Studies; D005720:Gamma Rays; D011522:Protons; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D011874:Radiometry / Q000295:instrumentation*; D011878:Radiotherapy / Q000295:instrumentation*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D011522:Protons