LHC LVPS Procurement - Status Reported by: Chris Parkman, PH-ESS February 10, 2006 Tests by: Bruno Allongue, Philippe Fontaine, Edgar Dos Santos (PH-ESS) Francis Anghinolfi (PH-MIC), Mark Beharrell (IT-CO) Georges Blanchot (PH-ATE), Alexander Singovski (CMS ECAL) Acknowledgements to: Federico Faccio (PH-MIC) László Ábel, Dante Gregorio (FI-PI)

Technical approval Wiener Approval given with reservations Magnetic field tolerance EC conformity OPC Server Procurement underway First release order issued CAEN Approval suspended Electrical conformity Environmental conformity Procurement started Accepting requests from experiments Technical reports in preparation 10 Feb. '06 - cp PH-ESS LVPS Procurement

Wiener Electrical - approved Maraton, “F8” & “F12” CE conformity (“Maraton” will be tested by TÜV in March) Magnetic field tolerance 1100 Gauss rather than 1200 Bimetal thermal cut-out changed – to be tested Radiation tolerance - approved TID & SEE (spec: 140Gy over 10 years, 2*1011 p/cm2) October 2005 Uppsala proton tests showed no effects up to 5.03*1010 p/cm2 Probable failure of non-radiation tolerant AC/DC/PFC December 2005 PSI proton tests showed no effects up to 2*1011 p/cm2 NIEL (spec: 1012 n/cm2 over 10 years) January 2005 Prospero neutron tests showed no effects up to ~6*1012 n/cm2 OPC server Qualified approval for the “Maraton” (monitoring only over Ethernet) Full “F12” functionality over Ethernet (sample end March) Full functionality over Ethernet & CAN (sample two months after approval of “F12”) 10 Feb. '06 - cp PH-ESS LVPS Procurement

High radiation & magnetic field tolerance ATLAS TRT, LHCb High radiation & magnetic field tolerance Water cooled 10 Feb. '06 - cp μP 2. Control & monitoring 385VDC 230VAC, single phase 1. AC-DC (w. PFC) Ethernet 3. “Maraton” 12ch 50A DC-DC (3kW) μP OPC Server PH-ESS LVPS Procurement Spec A LHCb ATLAS-TRT

Low radiation & magnetic field tolerance ALICE Low radiation & magnetic field tolerance Water cooled 10 Feb. '06 - cp μP “PL500-F12” 12ch 50A DC-DC 230VAC, single phase Ethernet OPC Server PH-ESS LVPS Procurement Spec A ALICE

Neutron radiation & high magnetic field tolerance CMS ECAL Neutron radiation & high magnetic field tolerance 10 Feb. '06 - cp Water cooled μP “PL500” 6ch 100A DC-DC CMS-ECAL 230VAC, single phase CAN OPC Server PH-ESS LVPS Procurement CMS Spec B Radiation is present at a level below 4Gy and 1011 1 MeV equivalent neutrons/cm2 over 10 years, of which approximately 10% are above 20MeV. Stray magnetic fields are present at a level up to 180mT.

No radiation or magnetic field tolerance ATLAS Pixels No radiation or magnetic field tolerance 10 Feb. '06 - cp Air cooled μP 230VAC, single phase “PL500-F12” 12ch 50A DC-DC ATLAS Pixels Ethernet OPC Server PH-ESS LVPS Procurement Spec A ATLAS - Pixels

CAEN EASY Electrical Out of spec CE conformity Power factor EMC Efficiency Noise and ripple CE conformity Need approval by independent laboratory - “auto-declaration” is insufficient Magnetic field tolerance In spec - 2000 Gauss Radiation tolerance Tests so far October (PH-ESS) – TSL Uppsala - proton tests showed TID effect and SEE December (PH-ESS) - PSI - proton tests identified particularly sensitive area on boards January (Atlas Muons/CAEN) - Casaccia - gamma tests showed TID effect January (Atlas Muons/CAEN) - TSL Uppsala - proton tests to refine diagnosis and test replacement components also tests of HV boards Planned tests February (PH-ESS) - Prospero - neutron tests end February (PH-ESS) February or March (ATLAS Muons/CAEN) - Pavia - gamma tests on test samples for TID effects March (PH-ESS/CAEN) - PSI - tests on sample boards to verify solution to SEE May (PH-ESS) - TSL Uppsala - final verification (repeat of October tests) OPC server Number of problems identified by IT-CO Solutions promised on March time-scale 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN – Electrical issues: actions Power factor The tender calls for a minimum Power Factor of 0.95 (since relaxed to 0.85) The measured value for the A3486 when delivering 3500W was 0.75 With the addition of the harmonic trap (passive filter) a Power Factor >0.9 was measured at 3500W output power and 0.7 at 1730W CAEN will “tune” the passive filter to cover a wider range of loads, and/or put the two channels in series (two notch filters) Mains harmonic rejection The A3486 was found to be non-conformant to the EN61000-3-2 Specification at all loads, however with the addition of the mains filter, the conditions of EN61000-3-2 were met at all loads. Use the passive filter (CAEN are not envisaging active power factor correction) Efficiency The specification calls for an overall efficiency (power out/power in) of better than 70% at loads from 10 to 100% of full load The A3486 and A3009 show overall efficiencies of less than 60% at all loads. The A3486 had an efficiency of 88% at an output of 3500W, the A3009 66% at maximum possible output (the nominal output was not attainable) - thus giving an overall efficiency of some 58%. PH-ESS showed the major losses to be apparently associated with the transformer (on the A3009). CAEN to investigate further Other parameters On the A3009 measured, the voltage turn-off (fall) was not to specification (5mS) and the current limit could not be tested since it was not possible to reach the nominal output current (~8.8A instead of 9A), also the over-voltage protection did not function as specified (apparently no crow-bar) CAEN are looking to a firmware solution 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN – Radiation tolerance: actions Six components identified as sources of problems Pulse width modulator - UCC3580 The UCC3580 will be replaced the non-pin compatible UC3525 (as used successfully in Casaccia and Uppsala on an ATLAS HV board) New versions of the aux DC/DC (CAEN code: DC5) and of the drivers (CAEN code: DRIVXA and DRIVXC) in preparation MOS driver TC4427 – transformer input driver Replacement being proposed (LM5111 or TC4424), has apparently performed well (tests in Uppsala, Week 4) EEPROM - control circuits Pin compatible replacement being proposed. 6 x Schmitt-trigger inverter 74HC14 – general use Components from Fairchild seem particularly sensitive – change to other maker Operational amplifier LM393 used as a comparator Remove completely – redundant monitoring function Opto-couplers HPL0630 – SEEs inducing spurious resets to the microprocessor controller Implement a low-pass filter on the reset line to reduce spikes, demonstrated during tests in Uppsala, Week 4 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN – OPC server Hardware persistency (§5.3) Error states in the CAEN HW did not persist across power cycling the HW. Voltage set point not preserved (§5.4) Under investigation – waiting for new OPC Server release. Fault tolerance (§5.5.2) A specific start-up sequence results in incorrect OPC quality values for some of the items. CAEN to retest. Data (Device) Source Access (§5.5.3) The OPC server reads from a cache in the 1527 rather than the Easy modules. Human readable configuration file (§5.5.4) IT-CO to check again. Stability & performance (§5.5.5) Random server crashing. Work in progress Diagnostic Facilities (§5.5.6) Requires a new release of the OPC server. IT-CO (Mark Beharrell) is waiting for the next OPC server release before continuing his tests. Provisional schedule – end-February. 10 Feb. '06 - cp PH-ESS LVPS Procurement

EASY crate (w. crate controller) CAEN LVPS layout μP μP 10 Feb. '06 - cp EASY crate (w. crate controller) 12ch 9A DC-DC OPC Server 6ch 16A DC-DC 4ch 25A DC-DC Ethernet μP 2ch 50A DC-DC 1ch 100A DC-DC Control & monitoring 48V Service 400VAC, 3-phase 400VAC, 3-phase Filter AC-DC 48VDC PH-ESS LVPS Procurement μP Spec A Spec B CMS LHCb - VELO ALICE - TOF ATLAS - Muons

Procurement Status First Wiener release order being processed (~2.7MCHF) Second release order in preparation Requests accepted for first CAEN release order Schedule Wiener Wiener will inform us of their production possibilities - next week Faced with large orders for LVPS and crates Any prioritisation between individual orders will be made by users with PH-ESS Deliveries likely to be late summer… CAEN Long lead-time components ordered against informal notification of requirements Despite delay in approval, ordering may proceed, but no payment before technical acceptance Prioritisation difficult given large quantities ordered outside CERN contract 10 Feb. '06 - cp PH-ESS LVPS Procurement

PH-ESS request form Please use the PH-ESS request form whenever possible Allows request to be tracked For specials Email lvps-info@cern.ch Catalogue Existing requests with status Add items 10 Feb. '06 - cp PH-ESS LVPS Procurement

Changes, Options, Parts

Wiener - changes Inclusion of OPC server licence in price – no separate licence All monolithic power supplies Maraton control and monitoring module RCM 0R00.0000 -> 0R00.0001 Crate for 6 Primary Rectifier Modules 0B07.000 -> 0B07.001 - addition of screw terminal block at rear 10 Feb. '06 - cp PH-ESS LVPS Procurement

Wiener parts in CERN Stores Thanks to Vincent Bobillier & Georges Blanchot Wiener parts in CERN Stores 10 Feb. '06 - cp PH-ESS LVPS Procurement Amphenol connector for 385VDC input to Maraton power converter

Suggested cables for Wiener Maraton Cable for 385VDC Primary Rectifier to Maraton Cable for RCM to Maraton 10 Feb. '06 - cp PH-ESS LVPS Procurement

Wiener Options 1: over-voltage protection CMS ECAL A never-exceed output voltage achieved by the use of a non-linear transformer ALICE Limits the voltage at the end of the sense line (detector end) to a user defined value This value is fixed at factory and cannot be adjusted by the user A pure hardware limitation independent of the channel processor 10 Feb. '06 - cp PH-ESS LVPS Procurement

Wiener Options 2: CERN patch-panel Approximate cost mounted on the 0B15.1200 power bin with connections to the Wiener rear-panel – 250 CHF Customised paralleling, etc., possible - needs care (possibility of damage …) Screens connected by clamping-bar in rack Consider whether you would like the power bin delivered early to allow rack installations to proceed 10 Feb. '06 - cp PH-ESS LVPS Procurement Right-angled lugs available from the CERN Stores More on lugs

Right-angled lugs 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN Options: Anderson Connectors v. Screw Terminals 10 Feb. '06 - cp PH-ESS LVPS Procurement A3009 12 channels A3025 4 channels Screw terminals preferred

Electrical & Environmental Tests

Wiener Electrical tests

Wiener PL500 “F12” electrical tests - overview Static regulation: Spec: 0.5% Test: 0.026%. Dynamic regulation: Spec: 10% of set voltage Test: 1% Efficiency: Spec: >70% Test: 72% Power factor Spec: ≥0.95 Test: 0.975 Noise and ripple: Spec: < 10mV at output terminals Test: ~30mv p/p at 200MHz Test: ~13mv p/p at 20MHz Turn ON time: Spec: >50ms, <100ms Test: 80ms. Turn OFF time: Spec: <5ms Test: 90ms EMC EN 61000-3-2 compliant 10 Feb. '06 - cp PH-ESS LVPS Procurement 230VAC, single phase OPC Server “PL500-F12” 12ch 50A DC-DC ATLAS Pixels 0M11.0000 - Monolithic 3U 19" power box, 230V 50Hz PFC input, 12 channel DC output, 2-8V, 90W nominal, 11.5A max, 10A continuous, Ethernet control. OPC server licence. Ethernet In discussion with Wiener

Wiener Maraton electrical tests - overview Static regulation: Spec: 0.5% Test: 0.034%. Dynamic regulation: Spec: 10% of set voltage Test: 8%. Efficiency: Spec: >70% Test: 75.2% Power factor Spec: ≥0.95 Test: 0.997 (full load) Test: 0.945 (one channel, full load) Noise and ripple: Spec: < 10mV at output terminals Test: 15mv p/p at 200MHz - 8mv p/p at 20MHz Turn ON time: Spec: >50ms, <100ms Test: 75ms. Turn OFF time: Spec: <5ms Test: 2.5ms. Current limit protection: Spec: 110% of rated current Test: 55.4A adjustable Over voltage protection: Spec: 125% of set voltage Test: 6.2V EMC EN 61000-3-2 compliant 10 Feb. '06 - cp PH-ESS LVPS Procurement 230VAC, single phase 1. AC-DC (w. PFC) 385VDC 3. “Maraton” 12ch 50A DC-DC (3kW) 2. Control & monitoring 0M22.0003 - 3U 19" power box, 385VDC input, 12 channel DC output, 2-8V, 300W nominal, 55A max, 50A continuous, analogue controlled interface. Water cooled, no magnetic screening. Ethernet

Wiener radiation tests

Wiener Maraton – Uppsala October 2005 Probable cause – irradiation of the AC/DC/PFC module (non-radiation tolerant) Wiener Maraton – Uppsala October 2005 Spec. 2*1011 p/cm2 10 Feb. '06 - cp PH-ESS LVPS Procurement 5.03 1010 p/cm2

Wiener Maraton – PSI December 2005 Spec. 2*1011 p/cm2 10 Feb. '06 - cp PH-ESS LVPS Procurement 5.03 1010 p/cm2

CAEN Electrical

CAEN A3486/A3009/A3025 electrical tests - overview EMC (conditions: loaded to 1728W - 36A, 48V) Non compliant with h5, h7, h11, h13, h17, h19 Power Factor 0.74 (spec. ≥0.95) The system exhibited non negligible level of common mode noise The environment was not optimum (no LISN, no ground plane). Static regulation Spec: 0.5% Test: < 0.5% of set voltage Dynamic regulation: Spec: 10% of set voltage Test: <10% of set voltage Efficiency Spec: >70%, 10-100% load Test: overall system 57% + loss in DC cable. AC/DC converter (A3486): 88%. DC/DC converter (A3009, A3025…): 65%. Noise and ripple: Need additional measurements (30m of cable with loads capacitance of 300uF) Turn on OK. Turn off > 5ms. Current limit protection: <110% of rated maximum current. Impossible to reach the nominal value. Overvoltage protection: In case of overvoltage , error message “OVV” on SY2527 screen but no drop of output voltage. No crowbar 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN Radiation Tests

CAEN A3009 - Uppsala October 2005 9.3 1010 p/cm2 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN A3009 - Uppsala October 2005 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN A3009 - Uppsala October 2005 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN A3009 - Uppsala October 2005 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN A3025 - Uppsala October 2005 1.09 1011 p/cm2 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN A3025 - Uppsala October 2005 10 Feb. '06 - cp PH-ESS LVPS Procurement

CAEN A3486 - Uppsala October 2005 10 Feb. '06 - cp PH-ESS LVPS Procurement 1.44 1010 p/cm2 Restart beam 6.17 1010 p/cm2

CAEN A3009 - PSI December 2005 A B C D E Power solid state fuse + microprocessor 10 Feb. '06 - cp A B C D PH-ESS LVPS Procurement E Input diode Switching transistor ? Service solid state fuse + EEPROM

PSI December 2005 CAEN A3009 - Area A: Ch. 2 Vout 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3009 - Area A: input power current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3009 - Area A: input service current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3009 - Area D: communication 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3009 - Area E: communication 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area A: Ch. 1 Vout 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area A: input power current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area A: input service current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area B: Ch. 1 Vout 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area B: input service current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area B: input power current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area C: Ch. 1 Vout 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area C: input power current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area C: input service current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area D: Ch.1 Vout 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area D: input power current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area D: input service current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area E: Ch.1 Vout 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area E: input power current 10 Feb. '06 - cp PH-ESS LVPS Procurement

PSI December 2005 CAEN A3050 - Area E: input service current 10 Feb. '06 - cp PH-ESS LVPS Procurement