Pixelated Ionization Chamber (PIC) für die Proton Irradiation Facility (PIF). EIT-P-25HS-024 - Project Report
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Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
18.01.2026
Typ der Arbeit
Semesterarbeit
Studiengang
Bachelor of Science FHNW in Elektro- und Informationstechnik
Typ
11 - Studentische Arbeit
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
Themenheft
DOI der Originalpublikation
Link
Zugehörige Forschungsdaten
Reihe / Serie
Reihennummer
Jahrgang / Band
Ausgabe / Nummer
Seiten / Dauer
Patentnummer
Verlag / Herausgebende Institution
HTU FHNW
Verlagsort / Veranstaltungsort
Windisch
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Paul Scherrer Institut
Zusammenfassung
This report presents the hardware design of a Pixelated Ionization Chamber (PIC) for the Proton Irradiation Facility (PIF) at the Paul Scherrer Institut (PSI). The existing PIC at PIF has limited resolution and does not have any possibility for maintenance.
The goal of the new PIC is to have a four times higher pixel density, resulting in a pixel size of 3.175 x 3.175 mm2. This results in a significantly higher pixel count (933), creating the need for four 256 channel current-to-digital converters (CDC). These CDCs are read out by an Enclustra Mars module System-on-Module (SoM). The SoM contains a System-on-Chip (SoC) with a processing system (PS) and programmable logic (PL).
The design aims for a PIC that requires only a single cable connection for both data and power. The data and power are supplied by a PoE+ Gigabit Ethernet RJ45 connector. With an integrated high voltage (HV) module, the HV needed for the ionization chamber is generated onboard.
As the readout electronics of the PIC is close to the proton beam, radiation damage may occur. To replace the electronics efficiently, the project is split into four different PCBs. These four PCBs are all designed in Altium Designer.
The design process includes block diagrams, power budget, schematic design, and PCB layout. During project phase P5, all boards were fully designed and ordered, meeting all requirements and wish-goals.
In the following P6, the boards are assembled and tested. Additionally, all software and firmware are implemented, including a website to display the measurement data and interact with the PIC.
Schlagwörter
Pixelated ionization chamber, Proton Irradiation Facility, Enclustra Mars module, Altium, high voltage PCB design, current-to-digital converter
Fachgebiet (DDC)
Veranstaltung
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
Enddatum der Konferenz
Datum der letzten Prüfung
ISBN
ISSN
Sprache
Englisch
Während FHNW Zugehörigkeit erstellt
Nein
Zukunftsfelder FHNW
Publikationsstatus
Begutachtung
Open Access-Status
Lizenz
Zitation
Deubelbeiss, M. (2026). Pixelated Ionization Chamber (PIC) für die Proton Irradiation Facility (PIF). EIT-P-25HS-024 - Project Report [HTU FHNW]. https://irf.fhnw.ch/handle/11645/57754