Status of the ATLAS Forward Proton Detectors Michael

Status of the ATLAS Forward Proton Detectors Michael Rijssenbeek for the ATLAS AFP group 25 FEB 2016 1

AFP Phase-1: AFP 0+2 2 horizontal Roman Pot Stations at 205 and 217 m in A 6 R 1 – very much similar to the CMS-PPS – TOTEM horizontal stations – installed since 18 Jan; under vacuum and baked-out since 3 Feb. Detectors installed yesterday & today… – BPM and BLMs installed and cabled – Motor motion calibrated, limit switches (HOME, IN, OUT) set, LVDT calibrated on 18 Feb. – Interlock logic (copy of ALFA logic) installed and ready for validation tests & commissioning … 25 FEB 2016 TREX Mtg 2

AFP in 2015 • TDR approved by ATLAS and LHCC – 19 Jun 2015, • AFP 0+2 ECR approved by the LHC – 2 Oct 2015 • Roman Pot Stations: (Vakuum Praha) – Prototype (20. 10. 2016) – 2 Production stations (04. 12. 2015) – NEG coating start (05. 12. 2015) • Roman Pots: – Prototype (Sep): Leak & pressure tested – 2 Production Pots on 20 Oct, 12 Dec • Station assembly: Beam View: Horizontal pot with 0. 3 mm thick windows – equipped with Pots and Motorization (12. 2015) • Vacuum validation (TE-VSC): – Leak testing, baking, outgassing analysis start on 14. 12. 2015 • Cabling: – Opening of Survey galleries for fast cable pulling 15. 12. 2015 – All cables prepared … 25 FEB 2016 TREX Mtg 3

AFP in 2016 – RP Installation • Two stations validated on 13 Jan • Cabling: (TE-VSC) Patch Panels & LV Regulators (Milano) at 211 m – Fast Cabling finished on (SPIE) – C-side cables finished (ATLAS-TC); A-side cabling cont. inuing until 26 Feb – All C-side cables connectorized and tested (PH-DT, AFP) • Services: – Compressed air for Cooling – Secondary Vacuum (PH-DT) – BPM, BLMs connected • Fiducialization & Installation • • on 18 Jan connected to Beam Pipe, pumped and baked-out Pot Motion calibrated in tunnel: 25 FEB 2016 – Survey of slide vs motor position, – vs switches and LVDT. 20 Feb TREX Mtg station at 217 m, BPM, BLM, TCL 6 4

AFP in 2016 - Detectors 11 Silicon 3 D detector assemblies produced at IFAE (more in coming months) – 7 assemblies are operational – Assemblies precision-mounted on Al-CF carrier cards – FLEX cooling – Heat Exchanger holds Tiltbars exhaust – – 40 C air from Air. Cooler • Installation: this week – leak testing Mo-Tu signal feedthrough trial assembly with 2 bad assemblies (20. 02. 2016) heat exchanger 25 FEB 2016 TREX Mtg 5

AFP in 2016: TDAQ • Local Trigger Board: – Uses Hit. Bus chip and the Hit. OR from FE-I 4. – NIM trigger signal to CTP in less than 80 BX • Data Acquisition using Optoboard and fibers to RCE-HSIO system in USA 15 • System pre-tested in standalone mode: from tunnel USA 15 local trigger board HV (To. F) Feed through flange Vortex Cooler 25 FEB 2016 TREX Mtg 6

AFP in 2016: DCS • LV and HV purchased and connected to DCS • capacity for 45 NTC’s per arm, sec. vac. , radiation dose … P N N Movement P N P Outside Flange Stepper Motor N N Local Trigger Board N P Outside Flange N N Stepper Motor N P 0 P 1 P 2 P 3 N N N To. F PMT NTC Distribution Panel Opto Board N N Tunnel floor 25 FEB 2016 E. Banaś 16/2/2016 N ACS N N VREG Crate N N TREX Mtg N NTC CFD Card N N N Local Trigger Board N N N To. F Preamp Card N ACS On. Wall N N P N N N PT 1000 N Reference Clock N Si. T HPTDC Card Si. T HE HPTDC Card N P 0 P 1 P 2 P 3 On. Wall Far Station RPHC 1 Vacuum Trigger/amplifier HE Near Station CFD Card RPHC 0 7

Pot Motion & Controls • Document in preparation: “Specification and Validation of the Motion Control System of the ATLAS Forward Proton Roman Pots” • Range Switches and Stops we implemented mechanical stops to prevent damage to electrical STOP 25 FEB 2016 TREX Mtg 8

AFP RP Interlock Diagram 2016 MOTOR CONTROL RACK RP_HOME_B 1(1) Home Switch B 1(2) Pos_B 1(2) LVDT_B 1(2) AND RP_HOME_B 1(2) Pos_B 1(1) LVDT_B 1(1) AFP RP Beam Interlock System (BIS) compare AND compare ALL_RP_HOME_B 1 INJECTION_PERMIT RP 1 (Beam 1) ALL_LVDT_OK_B 1 AND OR CIBU RP (double) FESA OR Pos_B 2(1) LVDT_B 2(2) Pos_B 2(2) Home Switch B 2(1) Home Switch B 2(2) compare AND compare RP_HOME_B 2(1) AND USER_PERMIT (Beam 2) ALL_LVDT_OK_B 2 ALL_RP_HOME_B 2 INJECTION_PERMIT RP 2 (Beam 2) all machine flags OR NOT_BACK_HOME all machine flags DCS STABLE_BEAMS AND Motor Control 25 FEB 2016 OVERRIDE MOV. DEVICE_ALLOWED INOR GMT (SMP) ATLAS Inj. Permit Beam 2 RP_HOME_B 2(2) x 4 ATLAS Slimos ATLAS Inj. Permit Beam 1 USER_PERMIT (Beam 1) Limits LVDT_B 2(1) Rack USA 15 Y. 25 -05. A 1 Luminosity and Forward Physics WG – 9

AFP 2016 – Commissioning & Data • Ultimate Goal: • Commissioning: • • ATLAS Forward Proton detectors: Measure forward protons with AFP horizontal Roman pot detectors for the study of soft and hard diffractive processes with ATLAS. • Commissioning of Interlocks and Roman pot insertion during no-beam periods. • • Parasitic stand-alone running (in garage position) for detector commissioning (NO pot insertion). Time period: March – April 2016 – – Motorization control & Interlock documentation in progress Contact with MPP – next presentation next week Data Taking – After commissioning: • • Participate parasitically in low-μ special runs; stand-alone data taking with tentative insertion up to 20 σ. Time period: May – June 2016 • • Participate parasitically in a few end-of-store runs (standard optics); stand-alone data taking with tentative insertion up to 20 σ. Time period: before September 2016 • • Participate in a number of standard runs with ATLAS+AFP TDAQ with tentative insertion up to 20 σ. Time period: Before mid-November 2016 – After LHC and ATLAS approvals: – After ATLAS Review and Approvals: 25 FEB 2016 TREX Mtg 10

Back-up Slides 25 FEB 2016 TREX Mtg 11

AFP in 2015 – TDR, TS, ECR, PO … • AFP Internally and externally approved for special runs • TDR, TS, ECR, POs, … 25 FEB 2016 TREX Mtg 12