Target Unit Design Study SERENA CIMMINO(EN-STI/RBS)* * The research - - PowerPoint PPT Presentation

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Target Unit Design Study SERENA CIMMINO(EN-STI/RBS)* * The research - - PowerPoint PPT Presentation

Oct 28, 2023 161 likes •511 views

CATHI Marie Curie Initial Training Network Cryogenics, Accelerators and Targets at HIE-ISOLDE Target Unit Design Study SERENA CIMMINO(EN-STI/RBS)* * The research project has been supported by a Marie Curie Early Initial Training Network

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* The research project has been supported by a Marie Curie Early

Initial Training Network Fellowship of the European Community’s Seventh Programme under contract number (PITN-GA-2010- 264330-CATHI)

CATHI

Marie Curie Initial Training Network Cryogenics, Accelerators and Targets at HIE-ISOLDE

SERENA CIMMINO(EN-STI/RBS)*

Target Unit Design Study

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Outline

Target Container Optimization Standard Temperature Calibration Cold Line – Alternative Cooling Solution Study Neutron Converter Design Study Outlook

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop Target Container Ion Source Feed- Through Cold Line

*ISOLDE Target Unit

Active Cooling

  • Outlet Temperature: 24-25°C
  • Pressure: Approx. 5 bars
  • Flow rate: 180 L/h
  • Inlet Temperature: 15°C

Vacuum (10 -7 mbar) Ohmic Heat (2000 °C)

Systems

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Standard Temperature Calibration

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

Calibration Chart

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Preserve the target during operation Avoid excessive stress

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Icont [A] Vcont [A] Isource [A] Tcont [°C] Tsource [°C] 450 3.01 270 1717 1294 500 3.38 270 1740 1294 550 3.68 270 1850 1294

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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Precision

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Reproducibility Intensive Test Campaign Diagnostic Instrumentation Study Laboratoire national de métrologie et d’essais

Calibration Cell

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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Measurement Conditions

Pyrometer to use Thermocouple Installation

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Target Container Optimization

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Conventional ISOLDE Container

Uniform Thermal Field Release Efficiency Increase Target Container Optimization

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*New Graphite Heater Prototype

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*New Graphite Heater Prototype

Ohmic Heat / Containement Thermocouple

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Graphite Prototype Study

Graphite Heater Tests

Graphite Heater Tests and Simulations Graphite Heater – Sigratherm Shielding : Tests and Simulations Total Graphite

Graphite Heater Simulations Sigratherm Screen Tests Sigratherm screen Simulations

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Parts Collection

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Prototype

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Cold Line – Alternative Cooling Solution Study

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Water Leaks Investigation

Brazing Electron Bombardment welding It resists up to 500 bar

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Alternative Cooling Solutions

750W to dissipate No cooling Water

Load Container heat 1370 [W] Source heat 1250 [W] Radiation 1 enclosure Film Coefficient Convection 3500 W/m2

Thermal Contact Flange Heat Flux Optimization Heat Pipes Integration

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Heat Flux Optimization

Thickness Increase Connection Hot-Cold

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Heat Pipes

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Heat Pipes Integration

Material: Copper nickel plated; Wick Type: Sintered; Fluid: water; Active Length: 100mm; Total Length: 130mm; Diameter: 10mm; Heat Transport 65 W; Thermal Resistance: 0.015 ~ 0.0769.

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

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*Feed Through Solution

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Neutron Converter Design Study

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Neutron Spallation Source

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Z=50, N = 82 double nuclear shell closure (132Sn) Z=28, N = 50 double nuclear shell closure (78Ni) Energy Deposition

Neutron Converter

Isobaric Contaminant

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

  • R. Catherall et al., NIMB, 204 (2003) 235.
  • R. Luis et al., European Physics Journal A, 48 (2012) 90

*ISOLDE Conventional Converter

24 Proton Distribution(p/cm2/μC) Neutron Distribution(n/cm2/μC)

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Simulation Validation

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  • A. Gottberg et al., to be submitted to NIM B

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Zn Prototype In-Target Production Zn Experimental Yield Rb Prototype In-Target Production Rb Experimental Yield

In Target Production Yield (1/µ) Mass Number (A)

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Production Comparison

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Cd conventional converter (2µA) Cs conventional converter (2µA) In Target Production Yield [s

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Isotope Mass

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Production Comparison

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Cd conventional converter (2µA) Cd prototype converter (2µA) Cs conventional converter (2µA) Cs prototype converter (2µA) In Target Production Yield [s-1] Isotope Mass

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Design Study

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  • Beam Energy: 500 MeV;
  • Beam Intensity: 100μA;
  • FWHM: 3mm;
  • Particles per second: 6.242

E14;

  • UCx density: 3.63g/cm3
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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Production Comparison

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Cs TRIUMF Standard (10µA) Cd TRIUMF Standard (10µA) In Target Production Yield [s

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Isotope Mass

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Production Comparison

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Cs TRIUMF Standard (10µA) Cs Converter Concept (100µA) Cd TRIUMF Standard (10µA) Cd Converter Concept (100µA) In Target Production Yield [s

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Isotope Mass

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S.Cimmino - EN-STI/RBS - Target Unit Design Study – HIE ISOLDE Workshop

*Preliminary Thermal Analysis

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Outlook

Calibration Cellule Development Graphyte Protoptype Experimental Tests Design Optimization Test and Simulations Neutron Converter Design Finalization Converter Online Tests

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THANK YOU FOR THE ATTENTION