Preamplifier Model PA101C and PA 101C/HV are a miniature, low noise, charge-sensitive preamplifiers for gamma-radiation spectroscopy with room-temperature-operated semiconductor detectors (CdTe, CdZnTe, HgI2). These preamplifiers can be used with Large Volume CdZnTe Detectors CZT/500(S) or CZT/1500. The preamplifier's scheme includes bias filtering and input circuit protection.

Basic

• noise, based on CdTe equivalent at 1 μs shaping time and operation temperature +22 °C:

with input capacitance 0 pF ≤ 3 keV

with input capacitance 10 pF ≤ 4 keV

• charge sensitivity, based on CdTe equivalent: ≥ 0.2 mV / keV

• integral nonlinearity (60 keV ... 1.33 MeV): ≤ 0.1%

• gain stability (0 ... +50 °C): ± 0.025 % / °C

• rise time

with input capacitance 0 pF: ≤ 100 ns

with input capacitance 10 pF: ≤ 150 ns

• output swing range: ± 1 V

• cable driving capability: up to 30 m

• output impedance: 50 Ω

• detector bias isolation

for PA 101C: ± 1500 V

for PA 101C/HV: ± 3000 V

• bias filtering: yes

• input circuit protection: yes

• power requirement: +12 V, 18 mA; –12 V, 12 mA

Connectors

• input

for PA 101C: BNC

for PA 101C/HV: SHV

• output* : LEMO FGG.2B.704.CLAD