Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Lung counter"'
Publikováno v:
Radiation Physics and Chemistry. 153:10-16
Internal dosimetry measurements of trans-uranic (TRU) radionuclides within the human body can be accomplished by γ -ray spectroscopy using high-purity germanium detectors. While measurements are typically conducted inside shielded chambers in order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3874640cccaf22a0bb8b79f4feab6fe9
https://doi.org/10.1016/j.radphyschem.2018.09.002
https://doi.org/10.1016/j.radphyschem.2018.09.002
Publikováno v:
Radiation Protection Dosimetry. 170:369-372
Plutonium isotopes are of high concern because they lead to high doses. In case of contamination, the activity burden inside the lungs should be assessed accurately. Many studies showed that the presence of breasts has a substantial influence on lung
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3dc3fe711dbf1b74ba25defc7446341
https://doi.org/10.1093/rpd/ncv531
https://doi.org/10.1093/rpd/ncv531
Publikováno v:
Health Physics. 104:211-217
A torso phantom was developed by the Lawrence Livermore National Laboratory (LLNL) that serves as a standard for intercomparison and intercalibration of detector systems used to measure low-energy photons from radionuclides, such as americium deposit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27bc4c36db66b6a48d13b5cb52a41412
https://doi.org/10.1097/hp.0b013e3182765834
https://doi.org/10.1097/hp.0b013e3182765834
Publikováno v:
Health Physics. 96:675-681
The Cameco lung counter has been recalibrated using the Lawrence Livermore National Laboratory torso phantom using an extended lung set (i.e., longer than the original set). The previous calibration had used the Japanese Atomic Energy Research Instit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3a69ae410777069fa5179a3695e02fd
https://doi.org/10.1097/01.hp.0000346306.54221.28
https://doi.org/10.1097/01.hp.0000346306.54221.28
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 584:406-411
Modern lung counter systems which use several HPGe detectors can be used to locate a “hot spot” of uranium in the lungs by the use of vector analysis. If there is only one hot particle this localization cancels the need to assume homogenous distr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bf87fa211fa5f8d0434520e345d34b9
https://doi.org/10.1016/j.nima.2007.08.146
https://doi.org/10.1016/j.nima.2007.08.146
Publikováno v:
Applied Radiation and Isotopes. 65:234-238
A method is described to locate a radioactive point source in a lung using a commercial array of lung detectors. The method takes advantage of the fact that modern commercial systems consist of several Ge detectors, each connected to a multi-channel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebebf353e4ba12c3e08acb50174e13a2
https://doi.org/10.1016/j.apradiso.2006.07.006
https://doi.org/10.1016/j.apradiso.2006.07.006
Publikováno v:
Radiation Protection Dosimetry. 125:496-499
A practical and simple method was employed to improve the minimum detectable activity (MDA) for lung counting measurements by summing several accumulated spectra. The method was checked for natural uranium, which produces peaks due to photon energies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cb2947ba38dffedcb31cf9077d53d2d
https://doi.org/10.1093/rpd/ncm146
https://doi.org/10.1093/rpd/ncm146
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 564:491-495
The uncertainty in the activity determination of uranium contamination due to real inhomogeneous distribution and assumption of homogenous distribution can reach more than one order of magnitude when using one detector in a set of 4 detectors coverin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55045471bb36de56d745feff42562223
https://doi.org/10.1016/j.nima.2006.04.036
https://doi.org/10.1016/j.nima.2006.04.036
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 551:553-562
Significant errors in the determination of radioactivity in lungs are caused by the usual assumption of homogeneous distribution, while actually the radioactive contamination can be in the form of a “hot spot”. Modern Lung Counter systems use sev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44fe91752f9715357afe75461ef34a16
https://doi.org/10.1016/j.nima.2005.06.056
https://doi.org/10.1016/j.nima.2005.06.056
Autor:
Gary H. Kramer, Barry M. Hauck
Publikováno v:
Health Physics. 89:383-392
The Human Monitoring Laboratory has replaced its lung counting system with four large area (85 mm x 30 mm) HPGe detectors, electronics, and software. The system has been calibrated with the same lung set and phantom that was used to calibrate the Hum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20239e5608ba54eb1ea7b922a4e0ae97
https://doi.org/10.1097/01.hp.0000167148.87179.b7
https://doi.org/10.1097/01.hp.0000167148.87179.b7