نتایج جستجو برای: isothermal calorimeter
تعداد نتایج: 17839 فیلتر نتایج به سال:
Electromagnetic calorimeters with noble liquids and their limits in resolution are discussed. The origins of “initial” current measurement in calorimetry are retraced and the performance and first results of the NA48 calorimeter (quasi-homogeneous calorimeter with longitudinal electrode structure) are presented. Results of the prototype calorimeters of KEDR (quasi-homogeneous calorimeter with t...
• A novel method for the accurate thermal characterization of heat pipes. The performance a sample sintered copper pipe was investigated. Improved uncertainty < 7.5 % in resistance, range inputs. data reveal that previous techniques overestimate This study presents can be used to accurately determine cylindrical pipe. In method, is placed between two stainless steel 304 blocks, configured as ra...
The International Linear Collider (ILC) is being designed to explore particle physics at the TeV scale. The design of the Very Forward Region of the ILC detector is considered in the presented work. The Beam Calorimeter one of two electromagnetic calorimeters situated there is the subject of this thesis. The Beam Calorimeter has to provide a good hermeticity for high energy electrons, positrons...
The calorimetry subsystem of the CLEO-III Trigger incorporates both analog and digital electronics to provide pipelined trigger information every 42 ns with a latency of approximately 2.5 μs. This paper describes the pipelined signal-processing and pattern-recognition schemes used to provide calorimeter information to the experiment trigger, with somewhat greater emphasis on the analog componen...
The CDF experiment is successfully collecting data from pp̄ collisions at the Tevatron in Run II. As the data samples are getting larger, systematic uncertainties due to the measurement of the jet energy scale assessed using the calorimeter simulation have become increasingly important. In many years of operation, the collaboration has gained experience with GFLASH, a fast parametrization of ele...
A description is given of the UK primary standard graphite calorimeter system. The calorimeter measures absorbed dose to graphite for photon radiations from 60Co to 19 MV x-rays, and is the basis of the NPL therapy-level absorbed dose to water calibration service. Absorbed dose to graphite from the photon calorimeter has been compared with three other standards: an ionization chamber and cavity...
This paper describes the implementation and performance of a particle flow algorithm applied to 20.2 fb[Formula: see text] of ATLAS data from 8 TeV proton-proton collisions in Run 1 of the LHC. The algorithm removes calorimeter energy deposits due to charged hadrons from consideration during jet reconstruction, instead using measurements of their momenta from the inner tracker. This improves th...
A microfabricated calorimeter (μ-calorimeter) with an enclosed reaction chamber is presented. The 3D micromachined reaction chamber is capable of analyzing liquid samples with volume of 200 nl. The thin film low-stress silicon nitride membrane is used to reduce thermal mass of the calorimeter and increase the sensitivity of system. The μ-calorimeter has been designed to perform DC and AC calori...
This paper describes the implementation and performance of a particle flow algorithm applied to 20.2 fb−1 of ATLAS data from 8 TeV proton–proton collisions in Run 1 of the LHC. The algorithm removes calorimeter energy deposits due to charged hadrons from consideration during jet reconstruction, instead using measurements of their momenta from the inner tracker. This improves the accuracy of the...
A series of large-scale experiments were performed to measure heat transfer to a massive cylindrical calorimeter engulfed in a 30-minute circular-pool fire. The calorimeter inner surface temperature and the flame black body emissive power were measured at several locations as functions of time. An inverse conduction technique was used to determine the net heat flux to the calorimeter. Light win...
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