Abstract:
Systematic studies with a sapphire bolometer test setup, made with indigenously made
NTD Ge sensor, are carried out. A C++ and ROOT-based pulse analysis program
implementing Savitzky–Golay filtering technique for analyzing the bolometer signal
is discussed. Response of the bolometer subject to heater pulses of energy equivalent of
0.3–5MeV is presented in the temperature range of 10–100mK. The energy resolution
is found to be 15±3 keV in the temperature range of 15–25mK. It is observed that the
energy resolution of the bolometer is nearly constant ∼ 15±3 keV over the energy
range of 0.3–5MeV. Performance of the bolometer with the addition of a moderatesize
tin sample (∼0.6 g) to the sapphire substrate is presented. The impact of vibration
on the bolometer is also discussed.
