Fast Detectorsfor Medical and Particle

Physics Applications

Wilfried VogelHamamatsu Photonics

FranceMarch 8, 2007

Contents

• Microchannel Plates

• MCP-Photomultipliers

• Flat Panel PMT

• Hybrid Photo-Detector

• Phototubes

• Ultrafast MSM detectors

• Multi-Pixel Photon Counter

Microchannel Plates (MCP)

• Electrons, ions, X-rays, high energy particles detection.

• Circular and rectangular shape• High speed response (500 ps FWHM)• High gain (up to several 10^7)

Microchannel Plates (MPC)

Microchannel Plates (MPC)

• g = exp (G. α)

• α = L/d

Microchannel Plates (MPC)

• F4655-13 – 14.5 mm diameter– 4 µm channel

Microchannel Plates (MCP)

• New assembly F9892 (2 stages)– High time resolution (1.2 ns FWHM)– 40 mm diameter– Excellent MCP flatness (20 µm)– Little ringing (3%)– 12 or 6 µm channel diameter

Contents

• Microchannel Plates

• MCP-Photomultipliers

• Flat Panel PMT

• Hybrid Photo-Detector

• Phototubes

• Ultrafast MSM detectors

• Multi-Pixel Photon Counter

MCP-Photomultiplier Tubes

• From 115 nm to 1.7 µm• 150 ps rise time typical.• 25 ps Time Transit Spread Max

MCP-Photomultiplier Tubes

• Custom multi-pixel products available on request.

• Up to 10x10 pixels

MCP-Photomultiplier Tubes

• Applications :– Molecular Science Analysis– Medical Science OCT– Biochemistry Fast Gene

Sequencing– Time Resolved Analysis– Material Engineering

Semiconductor Analysis

• P/N R3809U or R5916U

Contents

• Microchannel Plates

• MCP-Photomultipliers

• Flat Panel PMT

• Hybrid Photo-Detector

• Phototubes

• Ultrafast MSM detectors

• Multi-Pixel Photon Counter

Flat Panel PMT

• H9500– 16x16 multianode

• H8500– 8x8 multianode

– Small dead space– Fast time response (0.8 ns rise time)– Low cross-talk (3 to 5 %)– Good uniformity

Flat Panel PMT

• Applications– Small Animal Imaging– Compact Gamma Camera– Scinti-mammography– 2D Radiation Monitor

Effective area ratio 89%!

Contents

• Microchannel Plates

• MCP-Photomultipliers

• Flat Panel PMT

• Hybrid Photo-Detector

• Phototubes

• Ultrafast MSM detectors

• Multi-Pixel Photon Counter

Hybrid Photo-Detector (HPD)

• Features (P/N R10647)– Fast time response (400 ps rise

time)– Excellent Timing Resolution

(110 ps FWHM)– Capable of Photon Counting

• Applications : – HEP– Biology, Medical– LIDAR– TCSPC

Hybrid Photo-Detector (HPD)

• R&D large format HPD for next generation water Cherenkov detector

• P/N HY0010

Hybrid Photo-Detector (HPD)

• Timing resolution for multi-photoelectrons

Contents

• Microchannel Plates

• MCP-Photomultipliers

• Flat Panel PMT

• Hybrid Photo-Detector

• Phototubes

• Ultrafast MSM detectors

• Multi-Pixel Photon Counter

Phototubes Features

• High speed : 60 ps rise time• Large photosensitive area• Large spectral response : VUV

to NIR (115 nm to 1,1 µm)• High stability and wide

dynamic range

Contents

• Microchannel Plates• MCP-Photomultipliers• Photomultipliers• Flat Panel PMT• Hybrid Photo-Detector• Phototubes• Ultrafast MSM detectors• Multi-Pixel Photon Counter

MSM Detectors

• Metal-Semiconductor-Metal– GaAs & InGaAs

• Features– Ultrafast response : 30 ps rise time (GaAs) 40 ps rise time (InGaAs)– Low dark current : 100 pA at 25°C (GaAs) 5 µA at 25°C (InGaAs)– Large photosensitive area : 200 µm

Contents

• Microchannel Plates

• MCP-Photomultipliers

• Flat Panel PMT

• Hybrid Photo-Detector

• Phototubes

• Ultrafast MSM detectors

• Multi-Pixel Photon Counter

Multi Pixel Photon Counter

• What is MPPC?– Solid state photon counter using Geiger mode

APD and self quenching resistance

• Competitors and customers use the term SiPM for Silicon Photo-Multiplier

• MPPC advantages– Compact size– Low reverse voltage operation– Insensitive to magnetic fields– Lower cost vs. PMT’s– Good timing resolution

MPPC features

• Line up of MPPC (1 mm²)– 1600 pixel-type

• 25 µm pixel pitch, 40 x 40 pixels

– 400 pixel-type• 50 µm pixel pitch, 20 x 20 pixels

– 100 pixel-type• 100 µm pixel pitch, 10 x 10 pixels

• Time resolution : 250 ps max FWHM• PDE = QE x fill factor x avalanche probability

MPPC Applications

• Nuclear Medicine– PET/MRI, TOF-PET

• HEP– Calorimeter

• Homeland security• Fluorescence,

chemiluminescence• Flow cytometry, micro-fluidics

MPPC’s future plan

• 3 mm² active area– 900 and 3600 pixels (100 & 50 µm)

• MPPC module– Signal readout– Temperature control– USB interface

Thank you!

• Feel free to ask us for more information

• Visit our website – www.hamamatsu.com– www.hamamatsu.fr

W. Vogel