dorsal/arxiv
View SchemaThermal Equilibrium Calorimeters -- An Introduction
| Authors | Dan McCammon |
|---|---|
| Categories | |
| ArXiv ID | physics/0503045 |
| URL | https://arxiv.org/abs/physics/0503045 |
| DOI | 10.1007/10933596_1 |
| Journal | "Cryogenic Particle Detection", Christian Enss (ed.), Topics in Applied Physics 99, (Springer; Berlin 2005) pp 1-34 |
Abstract
Near-equilibrium thermal detectors operate as classical calorimeters, with energy deposition and internal equilibration times short compared to the thermal time constant of the device. Advances in fabrication techniques, cryogenics, and electronics have made it practical to measure deposited energy with unprecedented sensitivity and precision. In this chapter we discuss performance considerations for these devices, including optimal filtering and energy resolution calculations. We begin with the basic theory of simple equilibrium calorimeters with ideal resistive thermometers. This provides a starting point for a brief discussion of electrothermal feedback, other noise sources, various non-ideal effects, and nonlinearity. We then describe other types of thermometers and show how they fit into this theoretical framework and why they may require different optimizations and figures of merit. Most of this discussion is applicable also to power detectors, or bolometers, where the detector time constants may be short compared to variations in the incident signal power.
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"abstract": "Near-equilibrium thermal detectors operate as classical calorimeters, with\nenergy deposition and internal equilibration times short compared to the\nthermal time constant of the device. Advances in fabrication techniques,\ncryogenics, and electronics have made it practical to measure deposited energy\nwith unprecedented sensitivity and precision. In this chapter we discuss\nperformance considerations for these devices, including optimal filtering and\nenergy resolution calculations. We begin with the basic theory of simple\nequilibrium calorimeters with ideal resistive thermometers. This provides a\nstarting point for a brief discussion of electrothermal feedback, other noise\nsources, various non-ideal effects, and nonlinearity. We then describe other\ntypes of thermometers and show how they fit into this theoretical framework and\nwhy they may require different optimizations and figures of merit. Most of this\ndiscussion is applicable also to power detectors, or bolometers, where the\ndetector time constants may be short compared to variations in the incident\nsignal power.",
"arxiv_id": "physics/0503045",
"authors": [
"Dan McCammon"
],
"categories": [
"physics.ins-det",
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],
"doi": "10.1007/10933596_1",
"journal_ref": "\"Cryogenic Particle Detection\", Christian Enss (ed.), Topics in\n Applied Physics 99, (Springer; Berlin 2005) pp 1-34",
"title": "Thermal Equilibrium Calorimeters -- An Introduction",
"url": "https://arxiv.org/abs/physics/0503045"
},
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