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CERN - new radiation detector technology

by CERN-tech
Tags: cern, radiation, technology
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Nov16-13, 10:35 AM
P: 3
Where would you use our new radiation detector?

We are a student team from the Vienna University of Economics and Business. Currently we are working on project with the research center CERN and try to find different application possibilities for an innovative technology by interviewing potential users.

This technology is a High Voltage (ca. 120 V) CMOS radiation detector. It can detect charged particles and electromagnetic radiation. The technology’s benefits are the following:

- cheaper
- high radiation tolerance
- higher precision
- space saving

Due to your expertise we would like to ask, if you could think of ideas for application fields – no problem if they are utopian (feasibility check is done in the next step) . Maybe you also know some persons we could interview about this topic. Thanks!
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Nov16-13, 11:05 AM
P: 11,900
HV CMOS detectors are investigated for the upgrades of the LHC experiments (at least LHCb, ATLAS and CMS, no idea about ALICE), the future Mu3e experiment and probably some more experiments.

Some numbers I remember:
If you have pixel sizes below (100µm)2, timing better than 25 ns, radiation hardness of the order of 1016 neq/cm2 fluence and 1GRad, a good signal to noise ratio after irradiation, some other factors I forgot and if several square meters of those detectors are not too expensive (<100€/cm2), the LHC experiments could be interested.
Oh, and the detectors should be thin (<300µm) to reduce multiple scattering.

For mu3e, most requirements are not so strict, but they plan to thin their sensors to less than 50µm if I remember correctly.

Maybe you also know some persons we could interview about this topic.
The upgrade coordinators of the experiments, or spokespersons, or whoever is somehow responsible for the project, will know who to contact.
Nov16-13, 12:13 PM
P: 3
Thank you very much for your answer!

Well, actually it is the technology developed for the LHC we are trying to find further applications for.

Maybe you can think of a list of similar or far different areas, where you could use this detector?

Vanadium 50
Nov16-13, 12:45 PM
Vanadium 50's Avatar
P: 16,356
CERN - new radiation detector technology

This is aun unanswerable question. Look at MFB's response - he gives numbers for pixel size, radiation hardness, cost, etc. You give none of those things - just the technology behind it. It would be like saying "We have a new vehicle, and it uses 10 liter diesel engine. What would you use it for?" What we really need to know is if this is a car, or a boat, or a hovercraft, or a small plane...

You need to post some specifics of what this technology can actually do, not the process by which it is made.
Nov20-13, 01:09 PM
P: 3
Ok, thank you Vanadium 50 for the feedback! I try to give some numbers:

all factors mfb mentioned apply to the technology!

good signal to noise ratio after irradiation
radiation hardness of the order of 10^16 neq/cm2 fluence and 1GRad
timing better than 25 ns
not too expensive (<100€/cm2)
thin (<300µm)

and some more:
energy ~10keV
40 MHz (speed)

material = silicium

Does that help? And maybe remember it does not have to work 100% for sure, it should just be a brainstorming of fields, where particle detectors are used.
Nov20-13, 03:18 PM
P: 11,900
"Where particle detectors are used"
Apart from accelerator experiments and other particle physics experiments (dark matter, neutrinos, ...), everywhere where particles are accelerated for other reasons (medicine, industry, ...), some astronomy experiments, everywhere where X-rays are, PET scans (but then we are talking about ps timing), and all applications I forgot.

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