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Glasgow TID irradiations experience

Glasgow TID irradiations experience. Dima Maneuski On behalf of many people who helped. Motivation. Motivation for the talk Some insights into the TID irradiation kitchen @ Glasgow Share experience: Setting up the facility TID Metrology Environment monitoring and automation

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Glasgow TID irradiations experience

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  1. Glasgow TID irradiations experience • Dima Maneuski • On behalf of many people who helped

  2. Motivation • Motivation for the talk • Some insights into the TID irradiation kitchen @ Glasgow • Share experience: • Setting up the facility • TID Metrology • Environment monitoring and automation • DUT monitoring • Organisational aspects • RD533A irradiation plans Dima Maneuski

  3. How its all started • How its all started • Bought AmptekMiniX X-ray tube for public engagement • Quickly realised that fluorescence is a very powerful tool for detector characterisation (e.g. 5min vs 20h for same Fe spectrum on a CMOS sensor) • Got to build setup inspired by one at DetDev group @ Diamond Light Source • Primarily for detector characterisation and related experiments: X-ray radiography, fluorescence, collimated beam, CT etc. • Got approached by LHCb for a possibility to irradiate VELOPix. And that’s when the TID irradiations started…. Dima Maneuski

  4. TID metrology • TID metrology • Most critical part of setup for TID • Two independent measurement approaches: • PIN diode for “digital” measurement (thanks to John Mathieson from RAL) • “Ultimate” measurement by film (thanks to Federico Ravotti from CERN) • And beam image with Medipix • Characterisation of the system: • Dose rate • Dose rate stability • Dose rate as function of distance • Beam profile Dima Maneuski 3

  5. TID metrology • TID metrology peculiarities Tube or PIN diode? Turned out -> PIN diode! @ a cost of burning permanent pattern into Medipix chip PIN diode has some sort of temperature threshold! Once above ~25C, current doubles Got air conditioning installed in the lab And verified / adjusted PIN diode calibration with the film Dima Maneuski

  6. Experimental setup 0.45 Mrad/h @ 40 cm • Metrology of beam size 1.3 Mrad/h @ 20 cm 3.1 Mrad/h @ 10 cm Dima Maneuski

  7. Monitoring and automation • Environment monitoring and automation (hardware) • Thorlabs mechanics (optical table, plates, breadboards, adapters, posts, etc, etc.) • Standa 3 axis linear stage, rotation stage, goniometer, rotation wheel • Owis 2 axis linear stage • Environment monitoring based on • Arduino plus various sensors • Pen laser for alignment • Amptek SDD for Xray tube spectrum • measurement Dima Maneuski

  8. Monitoring and automation • Environment monitoring and automation (software) • Most instrumentation control is Labview based • Templated VI into which one copy-pastes new hardware Settings tab Remote control log • Connect to VI via socket • Send control command • Receive response message • Script through language of your choice (as soon as its support sockets) • Combine instruments • Make coherent measurement Device Control Output monitoring Error reporting Dima Maneuski

  9. Monitoring and automation • Example of automation (RD53A powering + monitoring) • One VI to control VDDx and monitor current (TTI QL355TP) • Two instances of VI to monitor LDOs for VDDx (two Keithley 2700) • Three python scripts: • Set VDDx/measure current on TTI • Measure two LDOs with K2700 • Plot results as function of time Dima Maneuski

  10. Future plans • Future plans • RD53A: • Make RD53A specific cold box: • Simplify DUT monitoring inside the box • Simplify device exchange • Improve DUT mounting with respect to beam • Improve cold temperature (now -12 degrees, hopefully -20 to -30) • Use same box for in situ post irradiation characterisation, ToT calibration with fluorescence (for RD53+Si) • Improve laser alignment • Improve cold box mounting • Near future irradiation plans: 200 Mrad (possibly week 14th May), 200 Mrad (possibly week 21st May), 100 Mrad (possibly week 4th June). Dima Maneuski

  11. Experimental setup • Setup overview • Gulmay3.2kW HV generator • Thales 100 kVp tungsten X-Ray tube • 120 um Al film filter • GulmayMP1 integrated controller • 150x120x120 cm lead lined box • Laser sample alignment system • 35x25x6 cm cold sample box (down to -25 °C with Peltier cooling) • Dry air supply • Automated X-Y stages • Automated ambient temperature and humidity logging, DUT temperature logging Dima Maneuski

  12. TID irradiations • Experiments • Conducted four experiments starting from December 2016 • VELOPix irradiations for LHCb 13/12/16 – 22/12/16 • Delivered 400 MRad of SiO2 equivalent TID • AMS350 basic transistors 31/01/17 – 15/02/17 • Delivered 100 MRad of SiO2 equivalent TID • SALT128 ASIC for LHCb 24/04/17 – 28/04/17 • Delivered 20 MRad of SiO2 equivalent TID • RD53A chip for RD53 collaboration 15/04/18 – 19/04/18 • Delivered 110 MRad of SiO2 equivalent TID Dima Maneuski

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