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--- facilities:irradiation:bern_medical_cyclotron [23:06 24/05/2022] – jhulsman
+++ facilities:irradiation:bern_medical_cyclotron [17:28 25/05/2022] (current) – [Facility] jhulsman
@@ Line 3: / Line 3: @@
 ===== References =====
   * [[https://www.lhep.unibe.ch/research/medical_applications/facility/index_eng.html|Facility Page]]
-  * {{ :facilities:irradiation:sipm_workshop_-_cyclotron_for_rh.pdf |Presentation}}
+  * {{ :facilities:irradiation:bern_medical_cyclotron:sipm_workshop_-_cyclotron_for_rh.pdf |Presentation}}
+  * [[https://arxiv.org/pdf/2201.04176.pdf|JINST Paper]]
 ===== Beam Parameters =====
-^ Beam Source ^ Particle Type ^ Current ^ Energy ^ Notes ^
+^ Beam Source ^ Particle Type ^ Flux ($cm^{-2} s^{-1}$) ^ Energy ^ Notes ^
-| IBA Cyclone 18/18 | proton | pA to $150 \mu A$ | 18MeV | 8 exit ports for targets/Beam Transfer Line |
+| IBA Cyclone 18/18 | proton | $10^9$ to $10^{12}$ | 18MeV | 8 exit ports for targets/Beam Transfer Line |
+| IBA Cyclone 18/18 | neutrons | ~$10^9$ | TBD | produced through converter targets at the end of the BTL|
 ===== Facility =====
@@ Line 14: / Line 16: @@
 The Bern medical cyclotron is a facility which focuses on the production of radiopharmaceuticals as well general scientific research. The former done through [[https://www.swanisotopen.ch/en/|SWAN Isotopen AG]], whereas the later is done through the [[https://www.lhep.unibe.ch/|Laboratory for High energy Physics]] (LHEP) at the university of Bern. Scientific research through LHEP include medical applications, beam monitoring and **radiation hardness studies**.
-$H_{2}$ molecules are converted into $H^{-}$ ions through an electrical arc and subsequently accelerated inside the cyclotron up to 18MeV. Before exiting, the electrons are stripped from the $H^{-}$ ions to produce a pure proton beam.
+$H_{2}$ molecules are converted into $H^{-}$ ions through an electrical arc and subsequently accelerated inside the cyclotron up to 18MeV. Before exiting, the electrons are stripped from the $H^{-}$ ions to produce a pure proton beam. A schematic of the facility is shown in the figure below
+{{ :facilities:irradiation:bern_medical_cyclotron:cyclotron_drawing_v4.jpg?direct&600 |}}
+The protons are directed into a separate bunker (as depicted in the figure below) via a beam transfer line. It is 6.5m long and consists of 1 dipole doublet for horizontal/vertical steering and 2 quadrupole doublets for focusing. An additional neutron shutter (to stop the neutron flux) is included. 2 beam viewers provide a destructive beam current measurement.
+{{ :facilities:irradiation:bern_medical_cyclotron:closedcyclotron.jpg?nolink&600|Beam Transfer Line photo}}
+{{:facilities:irradiation:bern_medical_cyclotron:bern_proton_btl.png?nolink&600|Beam Transfer Line schematic}}
+Collimators allow for proton beams to have an area of $1cm^2 \times 1 cm^2$ to $3cm^2 \times 3 cm^2$. Setups can be placed in front of the collimator on a motorized linear actuator. Setups can be irradiated in "passive mode". However, it is also possible to take data during the irradiation  via a patch panel (connected to the physics laboratory).