500-MHz x-ray counting with a Si-APD and a fast-pulse processing system

Journal Article · Wed Jun 23 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3463339· OSTI ID:21410344

Kishimoto, Shunji; Taniguchi, Takashi; Tanaka, Manobu ^[1]

---

1. High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba-shi, Ibaraki-ken 305-0801 (Japan)

We introduce a counting system of up to 500 MHz for synchrotron x-ray high-rate measurements. A silicon avalanche photodiode detector was used in the counting system. The fast-pulse circuit of the amplifier was designed with hybrid ICs to prepare an ASIC system for a large-scale pixel array detector in near future. The fast amplifier consists of two cascading emitter-followers using 10-GHz band transistors. A count-rate of 3.25x10{sup 8} s{sup -1} was then achieved using the system for 8-keV x-rays. However, a baseline shift by adopting AC-coupling in the amplifier disturbed us to observe the maximum count of 4.49x10{sup 8} s{sup -1}, determined by electron-bunch filling into a ring accelerator. We also report that an amplifier with a baseline restorer was tested in order to keep the baseline level to be 0 V even at high input rates.

• OSTI ID: 21410344
• Journal Information: AIP Conference Proceedings, Vol. 1234, Issue 1; Conference: SRI 2009: 10. international conference on radiation instrumentation, Melbourne (Australia), 27 Sep - 2 Oct 2009; Other Information: DOI: 10.1063/1.3463339; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFIERS
COUNTING RATES
COUPLING
ELECTRONS
GHZ RANGE
KEV RANGE 01-10
MHZ RANGE
PHOTODIODES
PROCESSING
PULSE CIRCUITS
PULSES
RINGS
SILICON
SYNCHROTRON RADIATION SOURCES
TRANSISTORS
X RADIATION
X-RAY DETECTION
DETECTION
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EQUIPMENT
FERMIONS
FREQUENCY RANGE
IONIZING RADIATIONS
KEV RANGE
LEPTONS
RADIATION DETECTION
RADIATION SOURCES
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMIMETALS