TIMEPIX AND BEAM MONITOR F Murtas INFN Laboratori

TIMEPIX AND BEAM MONITOR F. Murtas INFN - Laboratori Nazionali di Frascati and CERN Ø Ø Timepix as user friendly silicon detector Installation of Timepixes and Timepix 3 in Ua 9 -SPS at CERN Instrumentation for extracted beams n. GEM : a gas chamber for thermal neutron high efficiency

Hybrid Silicon Pixel Detectors Standard CMOS can be used allowing on-pixel signal processing Sensor material can be changed according to the application(Si, Ga. As, Cd. Te. . ) -2 - CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 2

The UA 9 SPS experimental setup 2018 BLM QD 52310 QF 52210 RP 3 Absorber W 100 cm BLM Absorber W 60 cm BLM Cp. FM RP 1 BLM Collimator Graphite 1 m BLM IHEP GONIO 2 BLM Absorber RP 3 RP 0 Primary Beam RP 0 BLM 2 Timepixes 1 Timepix 3 Collimator Graphite 1 m Crystal 3 4 Beam Pipe IHEP GONIO 1 ~ 85 m QD 52110 2 Timepixes Crystal 1 2 ~ 43 m QF 52010 ~6 m RP 1 ~ 44 m 1 Timepixes We doubled the number of Timepix detectors A third Roman Pot was installed on January 2018 with 2 Timepixes A new Timepix 3 has been installed in June on Roman Pot 1 external side -3 - CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 Katrine readout of Timepix 3 (P. Burian) 3

Old Roman Pot New design of Timepix board -4 - CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 4

The UA 9 detectors : Timepix 3 Based on silicon sensor 300 mm thick 14 x 14 mm 2 active area (2 cm 2) Chips provided by Medipix Collaboration Timepix 3 board designed and built by University of West Boemia and IEAP in Prague Also the holder was realized by the same group designed also for the chip heat extraction Data acquisition with time frame and continuous • 1. 56 ns resolution • charge and time at the same time Possibility to read the beam without dead time (Data Driven Mode) holder -5 - CERN & INFN F. Murtas Petr Burian (Technical Coordinator) Pavel Broulím (HW designer) Lukáš Pušman, (mechanics designer) Benedikt Ludwig Bergmann (data evaluation) Timepix 3 data acquisition system n. To. F Detector Meeting January 24 rd 2019 5

Timepix. Quad detector for test on beam extraction Without any object on the beam Crystal in VR + septum subtraction We have used two quads as beam monitor near the crystals in counting mode for studies on beam extraction -6 - CERN & INFN F. Murtas Image subtraction Volume Reflection Chanelling n. To. F Detector Meeting January 24 rd 2019 F. Murtas, A. Natochi, W. Scandale 6

Measurements on neutron beam (n. TOF@CERN) There is a big interest in the Neutron Spallation Source for a good monitoring of beam position and intensity The Timepix-quad has been recently used for the beam alignment at n. TOF faclity at CERN -7 - CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 7

New design New Roman Pot Structure Vacuum chamber -8 - CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 8

New Roman Pot Feed Through New Roman Pot Structure Timepix Board -9 - CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 9

Timepix for BIM -10 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 10

Beam Monitor for thermal neutron -11 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 11

The side-on n. GEM detector Borated Slides a THERMAL NEUTRON 1 mm 2 mm 1 mm Borated Slides Detector cross section 30% neutron detection efficiency at 25 me. V 10 B-based GEM neutron detectors -12 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 12

Future project : multiborated head-on converter Proposed for the first time by Cascade project but problems on boron deposition stability. Preliminary good results on B 4 C deposition on GEM foils within a Milano Bicocca, CERN and Liopking collaboration. 10 B-based GEM neutron detectors -13 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 13

Summary Timepixes (Timepix, Timepix 3, Quads, Diamondpix, GEMPix ) show good performances in high intensity beam monitoring. They have been installed successfully in different facility (UA 9, NTo. F @CERN and CNAO and BTF in Italy …. but also in ISS) and they provide useful information on beam characteristics and they become important for future project. Improvement on acquisition software fundamental Waiting Timepix 2 test and results on performances Waiting results on borated GEM prototype performance -14 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 14

Timepix family Timepix : Timepix 3 Time frame oriented Pixel oriented • • • Counting mode or Time of arrival or Charge • • • Counting mode and Time of arrival and Charge J J Dead Time > 5 ke. V 10 ns resolution k. B/s J J J L L Continous measurement > 3 ke. V 1. 5 ns resoution MB/s High Temperature -15 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 Timepix 2 Pixel oriented Time frame oriented ? ? 15

DIAMONDPix Higly pixelated diamond detector -16 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 16

Diamondpix : a radiation hardness detector Made by Element 6 and Fraunhofer IZM Gold cathode on diamond upward surface Pads on diamond downward surface Timepix 3 Pads Recently two Diamondpix have been tested on charged and neutron beam for future applications. -17 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 17

Diamondpix : a radiation hardness detector Beam image Neutron / Gamma discrimination Neutrons Gammas G. Claps, F, Cordella, C. Digiulio, L. Foggetta Details on : Diamondpix: a CVD diamond detector with Timepix 3 chip interface TNS 00581 -2018 -R 1 -18 -CERN & INFN F. Murtas n. To. F Detector Meeting January 24 rd 2019 18