Features

• Unipolar, bipolar, and gated integrator outputs
• Gated Integrator optimizes resolution vs. throughput
• Compatible with RC and pulsed reset preamps
• Gated baseline restorer with automatic tuning
• Selectable baseline restorer symmetry
• Pileup rejection and live time correction

Description

The CANBERRA Model 2024 Spectroscopy Amplifier offers the modern spectroscopist the performance, features, and flexibility demanded for high resolution, high count rate detector systems today. Functionally, the Model 2024 provides in a double-width NIM an exceptional spectroscopy amplifier, a gated integrator, a gated active baseline restorer, a pulse pileup rejector and a live time corrector.

CANBERRA's near-Gaussian filter shaping is optimized for improved pulse symmetry, minimum sensitivity to variations in detector rise time, and maximum signal to noise ratio. The improved pulse symmetry minimizes overall pulse width for a given shaping time constant, resulting in superior energy resolution, count rate, and throughput performance. Unipolar shaping is achieved with one differentiator and two active filter integrators and offers six front panel switch selectable pulse SHAPING time constants: 0.25, 0.5, 1, 2, 4, and 8 ìs.

The 2024 includes a Gated Integrator which minimizes spectrum broadening at the shorter amplifier shaping time constants, which is essential for high data throughput rates. The Gated Integrator integrates the entire unipolar signal, providing a properly scaled linear output signal without the resolution degrading problems normally associated with fast amplifier shaping times and long detector charge-collection times, an effect known as ballistic deficit. This effect is most pronounced for large volume detectors and with amplifier shaping times of less than 1 ìs.