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topIntroduction

Validation of the electronic design and units will be done at several levels:

  • Component level, when certifying COTS components
    • Ensuring a solid rad-tolerant base, with purchase of evaluated batches.
  • Sub-system or sub-assemblies
    • Allowing easier and intermediate tests.
  • Complete final system
    • Finalyzing the wole project, at prototype level and only if reasonable (huge converters?).

topCERN R2E Facilities Overview

Overview of the different LHC & CERN R2E Facilities spectra

2 different places are available at CERN with very different spectra, giving 2 irradiation levels for unit validation under radiations.

lhc_layout

Inverse cumulative probability for various LHC equipment and test areas.
Curves normalized to the high energy hadron fluence.

topCERN R2E Facility: CNRAD

Facility Main Characteristics

  • Mix-Field (medium Ej spectra & fan cooled only & high duration exposure possible)
  • Irradation of around 50 days in TSG45 area gives cumulative effect validation considered levels
CNRAD Irradiation Facility
CNGS parasitic Installation
Capability
T.I.D.
Gy/Day
N.I.E.L.
n. 1MeV.eq/(cm².day)
S.E.E.
had. Ej>20MeV/(cm².day)
Zone TSG45
High Flux
2-3 2E10-3E10 1E10-2E10
Zone TSG46
Medium Flux (≈1/6 of TSG45 rate)
0.5-0.7 3E9-5E9 1E9-3E9

CNRAD Main Characteristics Table

Facility Detailed Characteristics

lhc_layout lhc_layout

Particle energy spectra (lethargy) and Inverse cumulative probability plots for line of sight location at CNRAD.
Spectra normalized per particle on target (referred to as a primary in the label), and prob. plots normalized to the high Ej hadron fluence.

topCERN R2E Facility: H4Irrad

Facility Main Characteristics

  • Mix-Field (high Ej spectra & Water cooled & limited duration exposure).
  • 2 irradiated areas (high and medium flux).
  • Reference: H4IRRAD detailed description .pdf.
H4Irrad Irradiation Facility Capability
T.I.D.
Gy/day
N.I.E.L.
n. 1MeV.eq/(cm².day)
S.E.E.
had. Ej>20MeV/(cm².day)
Inside
High Flux
5-7 5E10-6E10 7E9-1E10
Outside
Medium Flux
0.3-0.5 4E9-5E9 1E9-3E9

H4Irrad Main Characteristics Table

Facility Detailed Characteristics

lhc_layout lhc_layout

Particle energy spectra (lethargy) and Inverse cumulative probability plots for H4IRRAD.
Spectra normalized per particle on target (referred to as a primary in the label), and prob. plots normalized to the high Ej hadron fluence.

topCERN R2E Facility: CHARM

Facility Main Characteristics

Future East Area Irradiation Test Facility, on PS accelerators.

  • Mix-Field (high Ej spectra & Water cooled & limited duration exposure).
  • Reference: PS-EAIRRAD detailed description .indico, follow up .indico.
CHARM Irradiation Facility Capability
T.I.D.
Gy/day
N.I.E.L.
n. 1MeV.eq/(cm².day)
S.E.E.
had. Ej>20MeV/(cm².day)
Longitudinal (higher) 2.4-2400 TBD 1E8-1E11
Lateral (lower) 0.24-240 TBD 1E7-1E10

CHARM Main Characteristics Table

topCERN R2E Facility: CC60

Facility Main Characteristics

CC60: Cobalt 60 Facility

  • Colbat Co60 source on Prevessin site Building 772.
  • Possible uses for low dose rate (ELDRS) as well as high dose rate.
  • Active (powered, instrumented) or passive tests possible.
  • Different irradiation positions: ionisation chamber for small samples or bench test for larger samples.
  • Dose rate from 0.3 Gy/h up to 20 Gy/h, (good homogeneity for 7 cm x 7 cm DUT, higher possible losing precision)
  • Total dose which can be reach:
    • From 1 to 10 kGy for small samples
    • Up to 100 kGy for larger samples.

CC60 Main Characteristics Table

topCERN R2E Test Equipments

TE-EPC developped specific testers for component validation process

  • R2E-EPC Analog On-Line Tester
    • Responsible: TE-EPC-LPC.
    • Transitor-like R2E tester: multi-effects & multi-environments. SEB, SEGR, Leakage current, Gain...
    • Op-amp & comparator R2E tester: multi-effects & multi-environments. SEL Leakage current, Offset Drift...
    • First tester to be designed, with FGC kind of communication implementation.
  • R2E-EPC Analog Off-Line Tester
    • Responsible: TE-EPC-LPC.
    • A batch of tests done before irradiation, and after, "off-line", without tracking during irradations. The tester is in reality a collection of different cards being used for difficult to measure characteristics, with slow degradation (dose) degradation expectations.
  • R2E-EPC-ANDI-Tester
    • Responsible: TE-EPC-CC.
    • Analog 2 Digital R2E Tester: DAC, ADC...
  • R2E-EPC-HIDE-Tester
    • Responsible: TE-EPC-CC.
    • High Density Component R2E tester: FPGA, DSP...

Facility Detailed Characteristics

topCERN R2E Database

A R2E database is required for all R2E-EPC projects. Goal of this R2E project is to

More info here pdf