Solutions for Radiation Monitoring Systems

The Market Leader of the Past, Present and Future

The One Supplier for All Your Competitive & Custom Designs

Radiation Detection and Monitoring Systems These are essential for detection and monitoring of ionizing radiation (alpha particles, beta particles, gamma rays, and X-rays) and neutrons for an array of applications including hospitals, police, security, military, HAZMAT teams, border patrol, nuclear power plants, U.S. Customs, fire departments, first responders, manufacturing facilities, recycling industries and more.

HamamatsuThe Market Leader of the Past, Present and FutureWe have been the technology leader in providing photonic solutions for various direct (semiconductor based) and indirect (scintillation based) radiation detection and monitoring systems for more than 50 years.

Gain a Competitive Edge Hamamatsu’s product superiority vs. the competition also translates into competitive advantages for your detection systems.

Tailor to Your Unique Needs Hamamatsu’s customization capabilities allow us the flexibility to meet your unique design needs.

Simplify Your Supply Chain Hamamatsu is the one supplier that will meet all your needs via our extensive selection of photodetectors, supporting electronics, scintillator-detector assemblies, complete modules, and Compton camera systems.

n Dosimetry Systemsn Personal Radiation Detectorsn Survey Metersn Radionuclide Identifiersn Gamma and Neutron Detectorsn Radioactive Material Monitorsn Radiation Detection Portal Monitorsn Spectroscopic Portal Monitorsn Mobile and Transportable Radiation Monitors

ASIC

Photo-detector

Crystal

Power supply

Compact Size – Pocket Medium Size – Handheld Large Size – Portal

Customized Solution Fit Your Unique Needs

Hamamatsu A Complete Solution ProviderPhotodetectors Modules & Systems

Photodiodes Scintillator + Photodetector

Complete ModulesPMTs

MPPC + ASIC

Compton CameraMPPCs PMT Sockets

High Voltage Power Supply

n Our direct detection photodiodes can be tailored with various thickness and size for better detection of particular radiation particles.

n Our compact high voltage power supplies can be tailored to meet the voltage/current requirements of PMTs or any CZT direct detection system.

n Our complete, plug-and-play modules allow full customization from selection of photodetectors to various readout circuits.

* Refer to Cattaneo, Paolo W., et al. “Development of High Precision Timing Counter Based on Plastic Scintillator with SiPM Readout,” IEEE Trans. Nucl. Sci, in press (2014). arXiv:1402.1404v1 [physics.ins-det]

Our Advantages. Your Success.Gain a Competitive Edge

What Makes Our Products Unique? How Can We Maintain Your Product’s Competitive Edge?

High PDE/QE vs. the competition* Significantly improves the energy resolution of your radiation identification systems

Fast timing characteristics (recovery time/rise time)*

Better discrimination of gamma vs. neutrons for your gamma/neutron detection systems

Compact to large size photodetectors Perfect for pocket size designs to large portal systems

Supporting Electronics

360 Foothill Road, P. O. Box 6910, Bridgewater, N.J. 08807-0910 Telephone: (1)908-231-0960, Fax: (1)908-231-1218, E-mail: usa@hamamatsu.com

For more info, please visit http://www.hamamatsu.com/us/en/community/optical_sensors/tutorials/solutions_for_radiation_monitoring/index.html

Select the Right Photodetector That Fits Your Needs

Photodiode MPPC PMT Relationship to Radiation Detector

Gain 1 105~106 ~106 ✓Higher gain allows detection of lower energy particles

Quantum Efficiency or PDE

74% to 94% at 550 nm – CsI(TI)

Up to 40% at 415 nm – Nal(TI)

Up to 45% at 415 nm – Nal(TI)

✓Higher QE/PDE improves energy resolution and count sensitivity/efficiency

Dynamic Range

Limited by amplifier

Limited by # of pixels

Limited by divider ratio

✓Allows the detection of high radiation energy since having more pixels increases the saturation level

Bias Voltage ~ 70 V ~ 70 V ~ 1000 V

✓Lowers the cost of power supply

✓Longer battery life and smaller heat load

Dark Output

Limited by amplifier

Up to 1000 KCPS

(Noisy)

Up to 500 CPS

(Quiet)

✓Lower dark counts enables operation at higher temperatures

✓Affects the energy resolution

✓For MPPC – Lower dark count allows easier discrimination of neutrons / gamma rays during PSD analysis

Design Complexity

Signal integrity

Temperature compensation

High voltage

✓Consider MPPC module with built-in temperature compensation circuit to minimize your design effort

Timing Slow Fast Very Fast

✓Faster timing allows easier discrimination of neutrons / gamma rays during PSD analysis

✓Allow better count rate linearity

Magnetic Field Immunity

Yes Yes No✓Solid state devices do not

require the additional magnetic shielding

Please Note: The data in the table above is for general reference only, please contact your local sales office for detailed specification comparisons.