定价：

定价：

定价：

定价：

This standard establishes methods for performance testing, calibration, and usage of sodium iodide detector systems for the measurement of gamma-ray emission rates of radionuclides; the assay for radioactivity; and the determination of gamma-ray energies. It covers both energy calibration and efficiency calibration. The following three techniques are considered: (1) Total spectrum counting (see 5.1) employs a system that counts all events above a low-energy threshold (see 7.1, 7.2, and 7.3). (2)… read more Single-channel analyzer counting (see 5.2) employs a system with a counting window which establishes upper and lower energy boundaries (see 7.1, 7.2, and 7.3). (3) Multichannel analyzer counting (see 5.3) employs a system in which multiple counting windows are utilized. This technique applies to measurements that do not involve overlapping peaks and those for which the continuum under the full-energy peak can be subtracted without introducing unacceptable error [4]. read less

定价： 50元 / 折扣价： 43 元

This document provides guidance for an objective evaluation of Sodium-Beta energy storage technology by a potential user for any stationary application. This document is to be used in conjunction with IEEE Std 1679™ IEEE Recommended Practice for the Characterization and Evaluation of Emerging Energy Storage Technologies in Secondary Applications. For the purposes of this document, Sodium-Beta batteries include those secondary (rechargeable) electro-chemistries with sodium as the active species… read more exchanged between the electrodes during charging and discharging, and operating above the melting point of sodium. These batteries use a solid β″-alumina electrolyte, typically written as β -alumina. Examples of secondary Sodium-Beta batteries are sodium-metal chloride and sodium-sulfur batteries. Non-rechargeable batteries are beyond the scope of this document. The outline of IEEE Std 1679 is followed in this document, with tutorial information specific to Sodium-Beta batteries provided as appropriate. Examples of tutorial information include technology descriptions, operating parameters, failure modes, safety information, battery architecture, and qualification and application considerations. This document does not cover sizing, installation, or routine maintenance and testing requirements, except insofar as they may influence the evaluation of a Sodium-Beta battery for its intended application. read less

定价： 57元 / 折扣价： 49 元

This document provides guidance for an objective evaluation of sodium-based energy storage technologies by a potential user for any stationary application. This document is to be used in conjunction with IEEE Std 1679-2010, IEEE Recommended Practice for the Characterization and Evaluation of Emerging Energy Storage Technologies in Stationary Applications.For the purposes of this document, sodium-based batteries include those secondary (rechargeable) electrochemistries with sodium as the active… read more species exchanged between the electrodes during charging and discharging, and operating at or above the melting point of sodium. Examples of secondary sodium-based batteries are sodium-nickel chloride and sodium-sulfur batteries. This document does not apply to aqueous sodium-based battery technologies.The outline of IEEE Std 1679-2010 is followed in this document, with tutorial information specific to sodium-based batteries provided as appropriate. Examples of tutorial information include technology descriptions, operating parameters, failure modes, safety information, battery architecture, qualification and application considerations.This document does not cover sizing, installation, maintenance and testing techniques, except insofar as they may influence the evaluation of a sodium-based battery for its intended application. read less

定价： 0元 / 折扣价： 0 元

定价：

This standard establishes methods for performance testing, calibration, and usage of thallium-activated sodium iodide [NaI(Tl)] detector systems for the measurement of gamma ray emission rates of radionuclides; the assay for radioactivity; and the determination of gamma ray energies and intensities. It covers both energy calibration and efficiency calibration. The following three techniques are considered: a) Total spectrum counting (see 4.1) employs a system that counts all pulses above a low-… read more energy threshold (see 6.1, 6.2, and 6.3). b) Single-channel analyzer (SCA) counting (see 4.2) employs a system with a counting "window," which establishes upper and lower energy boundaries (see 6.1, 6.2, and 6.3). c) Multichannel analyzer (MCA) counting (see 4.3) employs a system in which multiple counting windows are utilized. This technique allows measurements for which the continuum under the full energy peak may be subtracted without introducing unacceptable error. In case of overlapping peaks in the spectrum, it is realized that an MCA with access to a spectrum-stripping program is necessary. Such cases are not covered by this standard. read less

定价： 127元 / 折扣价： 108 元