1. Status of the ATLAS Forward Proton Detectors Michael Rijssenbeek for the ATLAS AFP group
25FEB2016

2. AFP Phase-1: AFP0+2
2 horizontal Roman Pot Stations at 205 and 217 m in A6R1
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 …
25FEB2016
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3. Beam View: Horizontal pot with 0.3 mm thick windows
AFP in 2015
TDR approved by ATLAS and LHCC – 19 Jun 2015,
AFP0+2 ECR approved by the LHC – 2 Oct 2015
Roman Pot Stations: (Vakuum Praha)
Prototype ( )
2 Production stations ( )
NEG coating start ( )
Roman Pots:
Prototype (Sep): Leak & pressure tested
2 Production Pots on 20 Oct, 12 Dec
Station assembly:
equipped with Pots and Motorization ( )
Vacuum validation (TE-VSC):
Leak testing, baking, outgassing analysis start on
Cabling:
Opening of Survey galleries for fast cable pulling
All cables prepared …
Beam View: Horizontal pot with 0.3 mm thick windows
25FEB2016
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4. AFP in 2016 – RP Installation
Two stations validated on 13 Jan (TE-VSC)
Cabling:
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:
Survey of slide vs motor position,
vs switches and LVDT. 20 Feb
Patch Panels & LV Regulators (Milano) at 211 m
station at 217 m, BPM, BLM, TCL6
25FEB2016
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5. AFP in Detectors
11 Silicon 3D detector assemblies produced at IFAE (more in coming months)
7 assemblies are operational
Assemblies precision-mounted on Al-CF carrier cards
FLEX
Heat Exchanger holds Tiltbars
–40 C air from AirCooler
Installation: this week
leak testing Mo-Tu
cooling exhaust
signal feedthrough
trial assembly with 2 bad assemblies ( )
heat exchanger
25FEB2016
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6. AFP in 2016: TDAQ Local Trigger Board:
Uses HitBus chip and the HitOR from FE-I4.
NIM trigger signal to CTP in less than 80 BX
Data Acquisition using Optoboard and fibers to RCE-HSIO system in USA15
System pre-tested in stand- alone mode: from tunnel  USA15
local trigger board
HV (ToF)
Feed through flange
Vortex Cooler
25FEB2016
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7. NTC Distribution Panel
AFP in 2016: DCS
LV and HV purchased and connected to DCS
capacity for 45 NTC’s per arm, sec. vac., radiation dose …
RPHC1
ToF PMT
SiT
Far Station
Tunnel floor
Reference Clock
HPTDC Card
CFD Card N
ToF Preamp Card P
RPHC0
Local Trigger Board
Near Station
OnWall HE
Outside Flange
ACS
Opto Board
VREG Crate
NTC Distribution Panel
Trigger/amplifier
Stepper Motor
NTC
PT1000 P0 P1 P2 P3
Movement
Vacuum
E. Banaś 16/2/2016
25FEB2016
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8. Range Switches and Stops
Pot Motion & Controls
Document in preparation: “Specification and Validation of the Motion Control System of the ATLAS Forward Proton Roman Pots”
we implemented mechanical stops to prevent damage to electrical STOP
Range Switches and Stops
25FEB2016
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9. AFP RP Interlock Diagram 2016
MOTOR CONTROL RACK
AFP RP Beam Interlock System (BIS)
Rack USA15
Y A1
RP_HOME_B1(1)
Home Switch B1(1)
AND
ALL_RP_HOME_B1
ATLAS
Inj. Permit Beam 1
INJECTION_PERMIT
RP1 (Beam 1)
RP_HOME_B1(2)
Home Switch B1(2)
Pos_B1(1)
LVDT_B1(1)
compare
AND
ALL_LVDT_OK_B1
AND
USER_PERMIT
(Beam 1)
Pos_B1(2) OR
CIBU RP
(double)
LVDT_B1(2)
compare
Limits
FESA OR
AND
USER_PERMIT
(Beam 2)
LVDT_B2(1)
compare
AND
Pos_B2(1)
ALL_LVDT_OK_B2
LVDT_B2(2)
compare
Pos_B2(2)
ATLAS
Inj. Permit Beam 2
Home Switch B2(1)
INJECTION_PERMIT
RP2 (Beam 2)
RP_HOME_B2(1)
AND
ALL_RP_HOME_B2
Home Switch B2(2)
RP_HOME_B2(2)
Motor Control
DCS
x 4
ATLAS Slimos
OVERRIDE
OVERRIDE OR
MOV. DEVICE_ALLOWED IN OR
NOT_BACK_HOME
GMT (SMP)
AND
STABLE_BEAMS
all machine flags
all machine flags
25FEB2016

10. AFP 2016 – Commissioning & Data
Ultimate Goal:
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:
Commissioning of Interlocks and Roman pot insertion during no-beam periods.
Motorization control & Interlock documentation in progress
Contact with MPP – next presentation next week
Parasitic stand-alone running (in garage position) for detector commissioning (NO pot insertion).
Time period: March – April 2016
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
After LHC and ATLAS approvals:
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
After ATLAS Review and Approvals:
Participate in a number of standard runs with ATLAS+AFP TDAQ with tentative insertion up to 20 σ.
Time period: Before mid-November 2016
25FEB2016
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11. Back-up Slides
25FEB2016
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12. AFP in 2015 – TDR, TS, ECR, PO …
AFP Internally and externally approved for special runs
TDR, TS, ECR, POs, …
25FEB2016
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