Belle II KLM members:
Leo Piilonen, Y. Yusa (VPI)
Pasha Pakhlov, Mikhail Danilov (ITEP, Moscow)
Dmitri Liventsev, K. Sumisawa (KEK)
Will Jacobs, Brandon Kunkler, Gerard Visser, Anselm Vossen
(Indiana)
David Cinabro, Alfredo Gutierrez (Wayne State)
IDL Ref # |
Descriptor |
Schematics | Schematic [PADS] |
Layout |
Layout [PADS] | Gerbers | BOM | DXF | Board photos |
Comment |
IDL_14_032 | DC_TX_Readout_RevB | [PDF] | [sch] | [PDF] | [pcb] | [zip] | [top] [bottom] | [CHANGELOG] | ||
IDL_14_033 | KLM_TX_9U_MB_RevB | [PDF] | [sch] | [PDF] | [pcb] | [zip] | [xls] |
[dxf] |
[top] [bottom] | [CHANGELOG] |
IDL_14_013 |
KLM_RHIC_RevB |
[PDF] | [sch] | [PDF] | [pcb] | [zip] | updated on 4/24/2014. |
|||
IDL_14_031 | SCROD_RevA4_Interconnect | [PDF] | [sch] | [PDF] | [pcb] | [zip] | [CHANGELOG] | |||
IDL_14_026 | SCROD_RevA4 | [PDF] | [sch] | [PDF] | [pcb] | [zip] | [top] [bottom] | [CHANGELOG] | ||
Dial-in information: (866) 740-1260 (toll free USA,Canada), access code: 8147808 (followed by "#")
Preamplifier order status and schedule
Preamplifier test setup development (Brian, Xiaowen) Link
Hawaii onsite visit discussion
General institutional reports
High Voltage Power Supply (Caen) datasheets:
SciFi and KLM Development Schedule [PDF]
TARGET4
test firmware (from Xiaowen as of 23-AUG-2012): [link]
Neutron testing @ Indiana CEEM Neutron
Radiation Effects Facility (summary from Will) [PDF]
Updated (BPAC) neutron backgrounds, as summarized by David Cinabro [txt]
9U Motherboard Design Page [link]
Amplifier Assy documentation [overview]
Radiation test capabilities (PNNL) [txt]
Schedule update: testbed by Dec. 2012, pre-amps for barrel
(~3300) by end of Jan. 2013[to VT]; 16700 to KEK
Testbed:
Testing protocol
Test bench composition
Pre-production run
Overview document (CDR
Review draft): [pdf]
Documentation from Abe-san (hand-sketches) of KLM
cabling/crates: [PDF]
Grounding summary
and basis for further discussion
Neutron fluence estimates and MPPC lifetime
justification (19-JAN-2012 == Dmitri) [txt]
Rad testing at ITEP summary (13-DEC-2011 ==
Dmitri) [txt]
and
summary figures [Ch.12
before] [sample
results]
Revised barrel KLM channel counts (4-DEC-2011 ==
Leo) [txt]
KLM crate
locations and stray
flux
estimates map and explanatory
text (Leo)
Thoughts on trigger options (Leo) [txt]
Barrel KLM module clarification for Layer 0,1 (Leo) [txt]
Barrel KLM layer 0,1 [scint.] configuration (Leo) [txt]
Posted slides (18-JUN-2011) on next stage of development in Hawaii
[PDF]
Suggested higher density connectors 3M
variant
Completed Motherboard/daughtercards
prior to packing for shipping to KEK [JPG]
A pre-assembly overview of the motherboard/daughtercards [PDF]
Images of the key component cards (TARGET_ASIC +
DACmon) [jpg]
A reminder, the overall system consists of the following set of
readout/test boards: [PDF]
Table 1: Status of eKLM first quadrant readout deliverables
ID Lab Designator |
Board Description |
Status |
# needed |
# made |
Notes |
Gerber |
Schematic PDF |
Schematic |
Layout PDF |
Layout |
Photograph |
IDL_10_002 |
BS_eKLM_test_RevA |
Fabricated |
1+1(s) |
2 |
1 to KEK Jan 2011 |
|
|
|
|||
IDL_10_032 |
BS_eKLM_carrier_RevC |
Fabricated |
10+1(s) |
15 |
10 to KEK Jan 2011 |
|
[PDF] |
[PADS] |
|
[PADS] |
|
IDL_10_004 |
BS_eKLM_amp_RevA |
Fabricated |
150+15(s) |
149+15 |
149 to KEK Jan 2011 |
|
|
|
|||
IDL_10_005 |
DC_TARGET_RevA |
Fabricated |
10+1(s) |
1 |
needs testing |
|
|
||||
IDL_10_004 |
BS_eKLM_amp_RevA |
|
~400 |
|
|
batch 2 |
|||||
IDL_10_006 |
CT_RevA |
review |
|
|
not needed intially |
|
[PDF] |
[PADS] |
|
[PADS] |
|
IDL_10_007 |
SCROD_RevA |
Fabricated |
1+1(s) |
|
|
|
|
||||
IDL_10_008 |
SPAM_RevA |
review |
|
|
not needed intially |
|
[PDF] |
[PADS] |
|
[PADS] |
|
IDL_10_009 |
MB_eKLM_RevB |
Fabricated |
|
|
completed |
|
|
|
|||
IDL_10_010 |
BS_eKLM_MPPC_RevA |
Fabricated |
1+1(s) |
2 |
completed |
|
|
|
|||
IDL_10_011 |
BK_eKLM_FIN_RevA |
Fabricated |
1+1(s) |
2 |
firmware/software needed |
|
[PDF] |
[PADS] |
|
[PADS] |
|
IDL_10_039 |
DC_eKLM_DACmon_RevA |
In fabrication |
10+1(s) |
|
completed |
|
[PDF] |
|
Production amplifier & carrier assemblies (to bring to KEK Jan 21st -- Gary) [PDF]
SCROD revision A (SCROD_RevA) [IDL_10_007] schematics [PDF]
and link to ID Lab SCROD development blog [link]
TARGET ASIC card revision A (DC_TARGET_RevA) [IDL_10_005] schematics [PDF]
and layout artwork [ZIP]
Reference spreadsheet for interface between the SCROD (DAQ interface) and TARGET ASIC Daughtercards [link]
15-channel Carrier card revision C (BS_eKLM_carrier_RevC) [IDL_10_032] mechanical drawing [PDF]
Overview of eKLM readout/test boards [PDF]
Evaluation cards:
MPPC amp Test Card (BS_eKLM_MPPC_RevA) [IDL_10_010] PADS files [schematic] [layout] and schematic [PDF]
15-channel amplifier Test Card (BS_eKLM_test_RevA) [IDL_10_002] PADS files [schematic] [layout]
Preamp card [PDF]
Next batch of 50 amps tested
(18-DEC-2010): [PDF]
15-channel Carrier card revision B
(BS_eKLM_carrier_RevB) [IDL_10_003] mechanical
drawing [PDF]
Photographs of the first 2x amp channels and carrier card [PDF]
Scope photograph of amplifier test results, confirming good
performance [PDF]
Minutes from the meeting [txt]
Dial-in information: (866) 740-1260 (toll free
USA, Canada)
0800 94 2408 (Toll
free Int'l [France])
Access code: 8147808
(followed by "#")
Link to overview slides [PDF]
Some action items for 2nd revision of 15x channel carrier board:
Rationalize the enumeration of amplifier input channels
Match signal pairs on output
Modify mounting hole scheme (small holes for a retaining bracket?)
Preliminary test results: [PDF]
Latest schematics:
Link to mechanical space available for amplifier cards (June 2010
IDM) [PDF]
Item's raised in Pasha's e-mail of July 12th, 2010:
BRF93A is a good transistor and should be radiation hard enough. Lifetime?
we aren't sure how to check apart from doing accelerated testing
Is the powering scheme safe in the event of a Belle solenoid quench? Is the induced voltage on the preamp power supplies negligible? Should we not add limiter diodes?
It isn't clear how much flux would be captured in the cables, so it is difficult to estimate. However the voltage regulator should be able to withstand a 30V spike, so we think it should be safe -- it is better and more effective than a limiter diode in this case.
We discussed adding a fuse to each channel
This has been done (please see revised schematics below)
Do you plan to have the common ground on the daughtercard ore each of the three grounds are just termination of DC twisted pair cables?
We plan to make the 15-channel amp card have the common ground, as both the bias adjust and output connectors + power terminate there.
Is it possible to have SiPM-coupled twisted pair cable directly on the daughter card (soldered via a two-pin connector) ?
Yes, it is possible -- we forgot to put it actually on the daughtercard in schematics below -- will do so.
Do we understand correctly that SiPM power supply (70V) and preamp card supply (3.8V) are provided by the readout board (from the external source) and are independent for each 15-channel board?
Yes, this is our plan. We will directly bring in the 70V line on a pair of the ribbon cable. We will bring in - 5-6V for power and regulate on the 15-channel board down to the -3.8V needed locally, so that we can bypass it well and make ourselves immune to voltage drops in the cable. This scheme allows for very good isolation (fault isolation) of each of the 15-channel cards.
Dmitri's follow-up of 13-JUL: mechanically,
the
proposed boards fit. Also, we can use a rigid board for
the 15-channel card (if make narrower)
Dmitri's request of 29-JUL: add a thermometer on every board
(15-channel?)
A voltage output temperature sensor will be added to each 15-channel board. On the TARGET readout module, there will be an array of analog multiplexers and an ADC (same chain as will be used for measuring the SiPM current draw).
Updated schematics:
Preamp card [fig]
[PDF]
Flex Pre-amp carrier card [fig]
[PDF]
Front-end (TARGET) readout module [tbu]
Cost estimate basis [xls]
[PDF]
Summary notes/action items from summary e-mail (Gary) [txt]
Working list of action items:
Confirm pre-amp card/specifications (Pasha)
Budget/purchasing information (Sumisawa-san)
Budget proposal for complete task (Gary)
Complete pre-amp card layout/initial prototype (Louie)
2x 15-channel amp card fab (TBD)
Production (10x 15-channel amp card fab) [TBD]
KLM Front-end (TARGET) readout board layout (Louie)
KLM Front-end (TARGET) readout board fab [TBD]
Firmware checkout & test [TBD]
Schematics for the KLM readout board (21-JUN-2010)
[PDF]
Schematics for the pre-amp board (21-JUN-2010 version) [PDF]
__________________________________________
Direct link to the Belle II TDR [TWiki page] with hint [here] for access
Nakao-san's Link proposal, [version 2]
Proposed LVDS link [pin out] and [RJ45 footprint]
__________________________________________
10-MAY-2010 -- last meeting of the academic year
[UH Physics] [University of Hawaii]
Last modified:
6/19/2014 -- GSV