TY - JOUR
T1 - Design and performance of large-pixel-size high-fill-fraction TES arrays for future X-ray astrophysics missions
AU - Figueroa-Feliciano, E.
AU - Bandler, S. R.
AU - Chervenak, J.
AU - Finkbeiner, F.
AU - Iyomoto, N.
AU - Kelley, R. L.
AU - Kilbourne, C. A.
AU - Porter, F. S.
AU - Saab, T.
AU - Sadleir, J.
AU - White, J.
PY - 2006/4/14
Y1 - 2006/4/14
N2 - We have designed, modeled, fabricated and tested a 600 μ m high-fill-fraction microcalorimeter array that will be a good match to the requirements of future X-ray missions. Our devices use transition-edge sensors coupled to overhanging bismuth/copper absorbers to produce arrays with 97% or higher fill fraction. An extensive modeling effort was undertaken in order to accommodate large pixel sizes (500- 1000 μ m) and maintain the best energy resolution possible. The finite thermalization time of the large absorber and the associated position dependence of the pulse shape on absorption position constrain the time constants of the system given a desired energy-resolution performance. We show the results of our analysis and our new pixel design, consisting of a novel TES-on-the-side architecture which creates a controllable TES-absorber conductance.
AB - We have designed, modeled, fabricated and tested a 600 μ m high-fill-fraction microcalorimeter array that will be a good match to the requirements of future X-ray missions. Our devices use transition-edge sensors coupled to overhanging bismuth/copper absorbers to produce arrays with 97% or higher fill fraction. An extensive modeling effort was undertaken in order to accommodate large pixel sizes (500- 1000 μ m) and maintain the best energy resolution possible. The finite thermalization time of the large absorber and the associated position dependence of the pulse shape on absorption position constrain the time constants of the system given a desired energy-resolution performance. We show the results of our analysis and our new pixel design, consisting of a novel TES-on-the-side architecture which creates a controllable TES-absorber conductance.
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U2 - 10.1016/j.nima.2005.12.203
DO - 10.1016/j.nima.2005.12.203
M3 - Article
AN - SCOPUS:33645894174
SN - 0168-9002
VL - 559
SP - 528
EP - 530
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 2
ER -