Transcript HF/HE Electronics Radiation Testing

HF/HE Electronics Radiation Testing
• Prior testing [HF, summer 2015]
• monitoring of the current from the power supply
• monitoring of registers in the QIE card and ngCCM via the control system (this
included all FPGA and QIE registers and temperature, voltage and current
sensors)
• monitoring of the data readout.
• Failed due to
• Problem in ngCCM control link
• QIE card wasn’t properly configured.
• Additional problem
• Post irradiation tests not possible due to activation of cards.
This is a good conceptual model
• Plan:
• Get readout working at Fermilab
• Write appropriate monitoring software
• Versions exist.
• Do high rate testing prior to radiation test
• Problems
• No ngCCM, thus testing emulator.
• (The CCM was a problem in HF testing.)
• Dearth of VTTx’s? (Seems to not be the concern it once was.)
• Equipment activated…can’t do long term testing?
• Check where HE will be vs. HF and compare integrated doses.
Bigger Picture
• HF intends to do a test in mid-October
• Significant overlap of components
• QIE chips already tested to much higher dose
• Overlap of components incomplete, plus different boards and the like.
• Still, HF testing is significantly similar to HE.
Bigger Picture [HE test]
• Pros
• Earlier is generally better
• Review coming up in November(?) and want to say “tested and OK.”
• Opportunistic availability of CHARM facility in mid-October
• Cons
• No ngCCM
• Use ngCCM emulator, which wasn’t designed to be rad hard
• Could be a significant limitation
• Will likely activate entire crate
• Not available for effectively forever
• If resources are limited and the electronics will be quarantined, it is
unclear to me that this is a valuable exercise until final components
are available.
Plan if loss of electronics is acceptable
• Work at Fermilab to
• get electronics running stably
• get software in good shape.
• Currently looks for time dependences of read back of registers
• Could, instead, look for unexpected values. (Needs good understanding of data
structure.)
• Transfer firmware and software to CERN test stand
• Personnel (proposed)
• Nadja and Don, with guidance from Andrew. (Maybe Joe too?)
• Tullio will presumably provide technical expertise.
• Since HF will be testing concurrently, running can presumably include HF people (Tote?)