AFP Fast Timing Beam TestAFP Fast Timing Beam TestOctober 19-29October 19-29

AFP Fast Timing Beam TestAFP Fast Timing Beam TestOctober 19-29October 19-29

UTA, U Alberta, Stony Brook USLAC, OSU, UNM

04.10.2012 AFP Beam Test Mtg 1

Test Beam Oct 19 - 29 – People Test Beam Oct 19 - 29 – People Test Beam Oct 19 - 29 – People Test Beam Oct 19 - 29 – People Coordination: Davide Caforio (Bologna)– Local AFP Timing contact: Justin Griffiths (UTA; CERN)

UTA– Andrew Brandt: Oct 22 – 29 – Ian Howley (PhD):– Justin Griffiths (PD; CERN): Oct 22 - …– James Bourbeau (UG):

Stony Brook– Michael Rijssenbeek: Oct 18 – 28– R. Dean Schamberger: Oct 18 – 27

U Alberta– Jim Pinfold: – Shengli Liu: Oct 22 – 28

Saclay: Hervey +EricLecce: ?Silicon help with EUDET and data analysis:– korchak@fzu.cz; (Oleksandr Korchak), Petr Sticho

04.10.2012 AFP Beam Test Mtg 2

HPTDC3 Connections HPTDC3 Connections (Shengli,(Shengli, Oct. 3, 2012) Oct. 3, 2012)HPTDC3 Connections HPTDC3 Connections (Shengli,(Shengli, Oct. 3, 2012) Oct. 3, 2012)

HPTDC#0

CFD#0 7

Ref.

Ribbon cableLVPECL

50pin Conn.

Trigger Coax. cable NIM

LEMO Conn.

Coax. cable LVCMOS

LEMO Conn.PLL &

Fan out

40MHz

40MHz Clk#0

40MHz Clk#1

Quartic

DET

HPTDC#1

CFD#1 7

Ref.

Ribbon cableLVPECL

50pin Conn.

Trigger Coax. cable NIM

LEMO Conn.

Coax. cable LVCMOS

LEMO Conn.

Trigger

FormingFan out

???

USB

HUB

USB Extenderremote

Laptop

USB Extender

Local

Ref. signal must be on CFD ch0

Ref. signal must be on CFD ch0

To be prepared by Alberta:

1.Three ribbon cables, not split, to connect CFD module to HPTDC;

2.Raw cable + connectors for on-site cable manufacture

3.Three HPTDC3 modules (NIM)

4.DAQ Laptop (USB hub, extender, cables will be brought by UTA)

40MHz clk

40MHz clk

Note: HPTDC3 module draws 2 A/module from +6V of NIM bin, so a dedicated NIM bin is needed to host 3 HPTDC3 modules (CERN)

40 MHz Oscillator

04.10.2012 AFP Beam Test Mtg 3

40 MHz Clock + Distribution40 MHz Clock + Distribution40 MHz Clock + Distribution40 MHz Clock + DistributionReplacement Reference Clock for beam test

– needs a good, low-jitter fanout

– output signals: LEMO connector, LVCMOS, (L=0V, H=2.5V), tH>3 ns

– circuits suggested by Shengli: • 40 MHz clock fanout: CDCLVC1104PWR (Digikey); buy a SMD to

DIP adaptor, digikey #33108CA-ND, to easily build on prototype board.

• the local 40 MHz clock IC used in the HPTDC3 is: CB3LV-3C-40M0000

– construction by UTA?

40 MHz Oscillator

PLL &

Fan out

40MHz

40MHz Clk#0

40MHz Clk#1

40MHz Clk#2

04.10.2012 AFP Beam Test Mtg 4

Stony Brook will bring:Stony Brook will bring:Stony Brook will bring:Stony Brook will bring:Preamps:

1. TWO PA-a 8-channel PMT amps (power via output SMA)2. TWO PA-b 10-channel amps (NIM) (delivers power to PA-a)3. TWO PA-b single channel amps (needs +6V; delivers power to

PA-a)

4. SMA cables5. SMA/SMA couplings6. SMA 50 Ohm terminators

04.10.2012 AFP Beam Test Mtg 5

Test Beam Electronics Layout Phase 0Test Beam Electronics Layout Phase 0Test Beam Electronics Layout Phase 0Test Beam Electronics Layout Phase 0Baseline layout (8×8 channels/side):

need fast, low-jitter analog fanout 19 ch !04.10.2012 AFP Beam Test Mtg 6

Quartic Feedthroug

h

3 × HV

16 × Signal (SMA)

crate

Signals

Trigger

cratecrates

RefClk

TDC

DAQ-PC

HV

LV+6V 5A

(50 Ω)CFD

Data

LV+6V 20A

PA-a

PA-b

AttSiPM

PA-c

CFD TDCTrg

Trg

TriggerLogic (NIM)

Veto

Att

(SMA)

110

Required InstrumentationRequired InstrumentationRequired InstrumentationRequired InstrumentationLight-tight box (LTE-22), improved version of January LTE– 60 cm (x) × 40 cm (y) × 60 cm (z)– feedthroughs for 20 SMA, 4 HV, 6 BNC (LV), 2 RS232 (Table

controls)– need to finalize connections and order 2nd patch panel by Oct. 1– 2 movable stages with remote control for two timing detectors:

• range: ±5 cm in x, ±5 cm in y, ±5° in θC

• resolutions: 0.2 mm in x, 0.2 mm in y, 0.2° in θC – integrating into box

– Improved top opening mechanism: need to add hinges

LeCroy 8620A 6 GHz 20 GS/s oscilloscope: LeCroy is arranging a loaner from LeCroy Geneva

Various NIM and PSs from CERN Pool (list available)***?***

04.10.2012 AFP Beam Test Mtg 7

Equipment Request CERN Instrument Equipment Request CERN Instrument PoolPool

Equipment Request CERN Instrument Equipment Request CERN Instrument PoolPool

04.10.2012 AFP Beam Test Mtg 8

Test beam Goals: Radiator OptimizationTest beam Goals: Radiator OptimizationTest beam Goals: Radiator OptimizationTest beam Goals: Radiator Optimization1. Optimization of Single Quartic Bar with respect to

• type of glass (Suprasil-1 vs Suprasil-UVL vs corning)• quality and extent of polish (will rough up bars)• transmission distance and width of bar (2 – 5 mm)• wavelength (filters)

– use the scope and SiPm’s to evaluate the resulting timing resolution– UPDATE: 10 bars each 2x6x140 mm and 4x6x140 in Suprasil-1 produced by Hasko’s

company and shipped to Marco; also have some plates for a “barless” design test. Hasko provided money for a couple more Suprasil hunks sufficient for ~two detectors.

– UPDATE: Specialty Glass is machining 10 pc 3x6x140 and 5x6x140 Suprasil-UVL should be ready on time

2. A full 8-channel QUARTIC detector • optimize bars according to findings from 1, as possible• measure resolution, including correlations

– using new preamps, old CFD, new HPTDC;– use SiPM’s and the reference clock

3. Two 8-channel QUARTIC detectors • Measure speed of light as cross check!• Added this to priority list after concerns about making physical measurement …

– a repeat of a test at UTA’s Picosecond Test Facility

04.10.2012 AFP Beam Test Mtg 9

1. Best achievable single Quartic bar

2. Best achievable Quartic row

Test beam Goals: Radiator OptimizationTest beam Goals: Radiator OptimizationTest beam Goals: Radiator OptimizationTest beam Goals: Radiator Optimization

4. Secondary goals (as time and resources permit)– Test a parallel fiber bundle as a Phase I detector option – Test an LBAR option provided by Michael Albrow

• Received detector; need extra SiPM and LV power supply

04.10.2012 AFP Beam Test Mtg 10

Optimizing Detector: RadiatorOptimizing Detector: Radiator

Single bar:Dimensions & Cerenkov angle:– Timing vs. height on bar and vs. width of bar– Optimize Cerenkov angle (varies with λ optimize for blue?)

Type and polish of fused silica:– previously have used Corning (Specialty Glass) bars from Suprasil-1

(Heraus) and Suprasil-UVL (SG). Compare single bars of each material probed by SiPM.

– Try different levels of polish to maximize amount of useful light.

Wavelength:– use various filters, optical grease, to optimize the wavelength range (also

neutral density filter to compare TTS with laser and beam)

we have a detector and housing that allows easy swapping of bars+filters without losing alignment or having to uncable anything.

04.10.2012 11AFP Beam Test Mtg

Easy Plug Single/Multiple Bar Detector

Easy Plug Single/Multiple Bar Detector

04.10.2012 12AFP Beam Test Mtg

Optimizing Detector: RadiatorOptimizing Detector: Radiator

8-Channels:z-Segmentation:– Single row of 8 bars or 1 single plate (we didn’t make double wide

bars) • Maximize the longitudinal (z) amount of quartz to get the most light.

– Maximum z-depth is 53 mm

• Jan’12 beam test with middle 6 (5x5 mm2) bars: σ=14±1 ps. – Design with 6 mm deep bars: expect 10% improvement; – using the full active area (53 mm) expect 15-30% improvement

Simulation is planned for comparison with data:– The construction would be simpler and cheaper for the barless design.

– Testing combining the z-segmentation into pairs of channels

• would give more light, and reduce dynamic range required• would marginally increase impact of HPTDC resolution

04.10.2012 13AFP Beam Test Mtg

Beam Test PreparationBeam Test PreparationBeam Test PreparationBeam Test PreparationCoordination: Davide Caforio (Bologna)– Local AFP Timing contact: Justin Griffiths (UTA)

Detector construction– Preparation of Light-Tight Enclosure (UTA)– Preparation/purchase of fused silica bars and sheets (Giessen, UTA)– Quartic Detector frames for single/multiple bars and the appropriate

MCP-MAPMTs (***prepared at UTA***)

Electronics (2 × 8-channel modules)– Amplifiers, attenuators (Stony Brook) ***ready soon, needs to be

shipped next week for UTA system tests***– CFD (Alberta, Stony Brook) ***use previous version***– HPTDC (Alberta)

Testing (UTA)– Ship equipment to UTA on or before October 1 ! ***Needs to happen!

GET some schedule contingency by bringing some equipment on flight

04.10.2012 14AFP Beam Test Mtg

Jan’12 Test Beam Setup Jan’12 Test Beam Setup

04.10.2012 AFP Beam Test Mtg

Stony Brook Amp cards plug directly

onto PMT

beam

15

Built by UTA for easyalignment and versatility

Trigger paddles outside Box and SiPMs inside

Use Bulls-eye laser for alignment

QUARTIC

sipm

60(w)x60(l)x40(h)cm Shielded box! SiPM

Draft TB ScheduleDraft TB ScheduleDraft TB ScheduleDraft TB SchedulePreparation (day -3 - 0)

– set-up rack, crates, electronics, LV, HV, cabling

– test the system with test pulses– set-up PC connections

Safety Walk-Through (day 1)Commisioning (day 2-3)

– test with PMTs, SiPM– Align SiPMs– Equalize gains, minimize noise, etc.

Running 1: Single Bars +Scope (day 4-6)

– dimensions– materials/finishes– couplings/filters

Switch-over (day 7)Running 2: Full Detector + CFD + HPTDC(day 8-10)

in parallel:– set-up PC connections– prepare Reference Clock– EUDET

– prepare CFD-HPTDC readout– EUDET data connection

– prepare 8-channel detector

04.10.2012 AFP Beam Test Mtg 16

SummarySummarySummarySummary

Need to strictly keep to construction schedule in order to provide in timely fashion (Oct 1 at UTA):• Electronics: Preamps, HPTDCs, cables, PSs•Radiators for testing•Detector box plus movable stages and controls

•Not a lot of schedule contingency left•Need final confirmation on Friday, booking of flights, etc.•Hinges for box, extra patch panel, finish, packing, …

04.10.2012 AFP Beam Test Mtg 17

Instrumentation Funding RequestInstrumentation Funding RequestInstrumentation Funding RequestInstrumentation Funding Request• We will search for a suitable x-y-θ stage that matches these

specifications, but estimate the cost about 4 kCHF/table plus controls (see e.g. www.velmex.com), so the total system would cost about 9 kCHF. Purchased: 5.2 kCHF, received

• A Microchannel Plate MAPMT (10 um pore size) from Photonis. UTA currently has two 25 um pore tubes which are used in their laser facility for lifetime testing, and one 10 um pore tube on loan from Photonis with a promise they can keep it after testing it. Since we plan to use the 10 um tube for final installation in 2014, it would be very useful to have two 10 um tubes for the beam tests so that a full comparison of performance of the two types of tubes can be done. Estimated cost: 15 kCHF 7.5 k to be used for 25 um tubes purchase

• U Alberta has a redesigned HPTDC board in production, which uses 3 HPTDC chips per 8-channel board. Two of these boards are needed for the test beam, but we only have 3 HPTDC chips in stock, just enough for a single TDC board, assuming full yield. So we request local funds for a small expedited order of about 10-20 chips to enable production of a set of these boards for laser tests and test beam is desirable. Cost: 20 x 60 CHF=1.2 kCHF. Purchased: 1.2 kCHF

04.10.2012 AFP Beam Test Mtg 18

Shengli’sTriggerLogic

Shengli’sTriggerLogic

Trigger

Ref Clock

• Use new 12-channel HPTDC modules

• Set-up and debug at UTA

• ***Time growing short***

• ***Clock now locks, need to measure jitter*

Draft

19AFP Beam Test Mtg04.10.2012