sPHENIX HCal discussion

[Gabor David <david AT bnl.gov>]

On Thu, 6 Apr 2017, Edward Kistenev wrote:

        Hi,

> John, wherever this proposal came from and whoever made it I would support it 
> wholeheartedly. My experience with CAEN - never works like in the manual but 
> only because at first one does not know how to read that manual. It is 
> certainly a slow and low range resolution (12 bits) but other than that - it 
> is tuned to what we call High Gain in our test beam implementation so should 
> be more then OK for tile testing. It regulates bias in the range 20-90V (can 
> use it for many purposes) but probably does not have an individual channel 
> controlled trip current (or maybe yes) and it is unclear the total current it 
> may deliver (but we will learn). Etc.

the proposal came from Mazsi (and Balazs), who discovered it while
thinking about the readout electronics.

        There is more than a flyer on the web



http://www.caen.it/csite/CaenProd.jsp?parent=10&idmod=1040

also look at the manual (in the documentation link), 37 pages,
nice and detailed.

        Gabor



> One more thing which looks a bit of overkill - regulating both bias and 
> amplifier gain (missing infor if this controllable gain is valid to both 
> shaping amplifier or trigger only).
>
> Unfortunately the only info you may find on the web is short flier. So I dug 
> further (not too deep) just to discover that in our test setup at UNIPLAST we 
> are already using something what is probably some kind of early development 
> prototype of a same board (or of a same idea) produced by Igor Kreslo who is 
> submitting author on arXiv:1606.02290v1 [physics.ins-det]. I am asking Igor 
> to tell if we can get something of a kind on loan.
>
> Nice reading
>                                 Edward
>
>
> On Apr 6, 2017, at 10:18 AM, John Haggerty <haggerty AT bnl.gov> wrote:
>
> Good question, can't tell.  It turns out we may have one at the lab over in 
> Instrumentation, I'm checking.
>
> John Haggerty
> email: haggerty AT bnl.gov
> cell: 631 741 3358
>
> On Apr 6, 2017, at 9:51 AM, Megan Connors <meganEconnors AT gmail.com> wrote:
>
> > Hi John,
> >
> > This looks really nice but I had Sawaiz take a quick look and from our 
> > conversation yesterday it sounded like he thought only one channel can be 
> > read out at a time. I didn't look closely enough myself yet but have you? Can 
> > we record info from all channels simultaneously?
> >
> > Best,
> > -Megan
> >
> > On Thu, Apr 6, 2017 at 9:40 AM, John Haggerty <haggerty AT bnl.gov> wrote:
> > Megan and John,
> >
> > I have a tendency to gloss over the details until I'm holding the hardware in 
> > my hands, but looking through the stuff on the web, this thing looks like 
> > pretty much what we were talking about designing.  As far as I can see, 
> > making it into a portable instrument would consist of messing around with 
> > some connectors, and setting up an rpi that could run some software to 
> > collect data.
> >
> > The price is low enough so that I could credit card up one of these, and I 
> > think I could loan it to whoever has time to work on it.
> >
> > -------- Forwarded Message --------
> > Subject: Re: CAEN Electronic Instr. - Request a quote for DT5702
> > Date: Thu, 6 Apr 2017 10:04:19 +0200
> > From: Marco Locatelli <marco AT caentechnologies.com>
> > To: haggerty AT bnl.gov
> > CC: Caen Tech Sales <sales AT caentechnologies.com>
> >
> > Hello John,
> >
> > here is Marco, I hope this email finds you well and I thank you for your 
> > request. Attached you find a quote for a DT5702 as requested, with current 
> > available discounts and expected delivery time. If you need any additional 
> > information about the unit please let me know and I will be ready to assist 
> > you. :-)
> >
> > I remain at your disposal for any further information you may require.
> >
> > Best Regards
> > Marco.
> >
> >
> >
> > Il 05/04/2017 21:00, haggerty AT bnl.gov ha scritto:
> > Request a quote for DT5702
> >
> > Date: 05/04/2017
> > Comment:
> >
> > Ordering options:
> > WDT5702XAAAA DT5702 - 32 Channel SiPM readout Front-End Board BOXED
> >
> >
> > Sender
> > --------------------------------
> > Name: John Haggerty
> > Company: Brookhaven National Laboratory
> > Phone/Fax: 6313442286/
> > Address: Building 510C
> > City: Upton
> > Zip Code: 11973
> > State: NY
> > Country: US
> > Email: haggerty AT bnl.gov
> > --------------------------------
> >
> >
> >
> > --
> > Marco Locatelli
> > Field Application Scientist
> > CAEN Technologies, Inc.
> > 1140 Bay Street - Suite 2C
> > Staten Island, NY 10305
> > Phone: +1 (718) 981-0401
> > Mobile: +1 (718) 501-5309
> > Fax: +1 (718) 556-9185
> > www.caentechnologies.com
> >
> >
> >
> >
> >
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> >
> > --
> > John Haggerty
> > email: haggerty AT bnl.gov
> > cell: 631 741 3358
>
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--
Gabor David  (david AT bnl.gov)
Stony Brook University
[Brookhaven National Laboratory
Physics Department, Bldg 510/c
UPTON NY 11973
Tel: (631)344-3016
FAX: (631)344-3253]