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Enhanced ISOLDE Target Unit: Advanced Thermocouples and Flow Control Systems

The ISOLDE target unit features a robust design with seven inlets, catering to essential functions such as ion source gas leakage and chimney/transfer line heating. The interface accommodates up to four thermocouples, ensuring precise temperature control. To enhance safety, a minimum of five thermocouples is required for effective monitoring. Additional features include flow rate measurement at the irradiation chamber entrance using a Venturi tube, pressure monitoring in the pump, and leak detection in the diffusion chamber. An interlock system will be implemented to halt proton beam operations in the event of flow failure.

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Enhanced ISOLDE Target Unit: Advanced Thermocouples and Flow Control Systems

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  1. WP4: Instrumentation Tânia Melo Mendonça

  2. ISOLDE target unit Present target unit base at ISOLDE with 7 inlets (including ion source gas leak, heating for chimney/transfer line) Present interface at ISOLDE allows up to 4 thermocouples Changes at the front-end interface? Temperature (Multipinconnnector) Chimneyandtransferlineheating Ionsource

  3. Temperaturecontrol • Minimum 5 thermocouplesneeded Transferline + chimney (2x) Inletirradiationchamber Outletdiffusionchamber OutletPump

  4. Flowcontrol • - Flow rate measurement at entrance of irradiation chamber – flow meter (e.g. Venturi tube) • - Pressure in the pump • LBE level in the diffusion chamber – sensor • Leak detection Inletirradiationchamber Interlock to be included in case of flow failure – cut on proton beam Sensor atdiffusionchamber

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