title: FastPixN, a new integrated pixel chip for a future fast version of the IRSN - recoil proton telescope.
abstract: A first prototype of recoil proton telescope (RPT) is currently working at the AMANDE facility, being developed as a collaboration between IPHC Strasbourg and the LNE-IRSN. The device, able to measure both energy and fluence of neutron fields in the range of 5-20 MeV, has to be improved further, in order to reduce the considerable inelastic background generated by the neutrons inside the RPT itself. To achieve faster running cycles, the present complementary metal-oxide-semiconductor pixels used for proton tracking are to be replaced by a new integrated chip, specially developed for this application. The authors present a first version of this new element, with individual pixels readout at a 200-MHz frequency, with a fast 4-bit ADC for each column of 64 pixels. The measured performances point to a complete frame treatment in only 12.6 µs. With a readout speed multiplied by a factor 400 over the existing device, the authors expect a considerable improvement of the telescope at AMANDE, with the potential to reach neutron fluence rates up to 10(7) n cm(-2) s(-1) or more.
authors.affiliation: IPHC-DRS (UMR 7178), UdS, CNRS, IN2P3, 23 rue du loess, 67037 Strasbourg, France maciej.kachel@iphc.cnrs.fr.
authors.forename: M
authors.initials: M
authors.lastname: Kachel
authors.affiliation: IPHC-DRS (UMR 7178), UdS, CNRS, IN2P3, 23 rue du loess, 67037 Strasbourg, France.
authors.forename: D
authors.initials: D
authors.lastname: Husson
authors.affiliation: IPHC-DRS (UMR 7178), UdS, CNRS, IN2P3, 23 rue du loess, 67037 Strasbourg, France.
authors.forename: S
authors.initials: S
authors.lastname: Higueret
authors.affiliation: IRSN, 13115 Saint Paul-Lez-Durance, France.
authors.forename: J
authors.initials: J
authors.lastname: Taforeau
authors.affiliation: IRSN, 13115 Saint Paul-Lez-Durance, France.
authors.forename: L
authors.initials: L
authors.lastname: Lebreton
mesh_terms: D004581:Electronics; D004867:Equipment Design; D007477:Ions; D008670:Metals / Q000737:chemistry; D009502:Neutrons; D010087:Oxides / Q000737:chemistry; D011522:Protons; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D012015:Reference Standards; D012542:Scattering, Radiation; D012666:Semiconductors; D012825:Silicon / Q000737:chemistry; D061351:Telescopes
chemical_list: D007477:Ions; D008670:Metals; D010087:Oxides; D011522:Protons; D012825:Silicon