The Dynamic Range of Ultra-High Resolution Cryogenic Gamma-ray Spectrometers

Conference · Wed Aug 10 00:00:00 EDT 2005

DOI:https://doi.org/10.1016/j.nima.2005.12.065· OSTI ID:877802

Ali, S; Terracol, S F; Drury, O B; Friedrich, S

We are developing high-resolution cryogenic gamma-ray spectrometers for nuclear science and non-proliferation applications. The gamma-ray detectors are composed of a bulk superconducting Sn foil absorber attached to multilayer Mo/Cu transition-edge sensors (TES). The energy resolution achieved with a 1 x 1 x 0.25 mm{sup 3} Sn absorber is 50 -90eV for {gamma}-rays up to 100 keV and it decreases for large absorber sizes. We discuss the trade-offs between energy resolution and dynamic range, as well as development of TES arrays for higher count rates and better sensitivity.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 877802
• Report Number(s): UCRL-CONF-214511; TRN: US0601696
• Resource Relation: Journal Volume: 559; Journal Issue: 2; Conference: Presented at: Low Temperature Detectors (LTD) 11, Tokyo, Japan, Jul 31 - Aug 05, 2005
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
CRYOGENICS
ENERGY RESOLUTION
PROLIFERATION
RESOLUTION
SENSITIVITY
SPECTROMETERS