TY  - JOUR
AB  - Estimation of inhalation dose due to radon progeny is important as it is one of the major carcinogens for development of lung cancer. In recent years, Solid State Nuclear Track Detectors (SSNTDs) are widely used for evaluation of radon progeny concentration without measuring the parent radon gas concentration and subsequently deriving it using the assumed equilibrium factor. In the present study, the performance of LR-115 SSNTD based integrated sampler which is used for measurement of radon progeny concentration was studied against the bronchial dosimeter proposed by Yu and Guan. The comparison of inhalation dose measured using both the Integrated sampler and Yu-Guan dosimeter was carried out at three different ventilation rates such as 0.5 h -1 , 4.5 h -1 and 9.5 h -1 and two different relative humidity conditions such as 50% and 90%. It was observed that the doses measured using these two different dosimeters are very similar. An increase in ventilation rate or in relative humidity leads each to a decrease in annual effective dose as measured with both the detectors.
AU  - Rout, R.P.*
AU  - Mishra, R.*
AU  - Meisenberg, O.
AU  - Sapra, B.K.*
AU  - Tschiersch, J.
C1  - 55681
C2  - 46488
TI  - Comparison of LR-115 SSNTD based Integrated sampler with Yu-Guan bronchial dosimeter for measurement of inhalation dose due to radon progeny.
JO  - J. Instrum.
VL  - 14
IS  - 1
PY  - 2019
SN  - 1748-0221
ER  - 

TY  - JOUR
AB  - This paper describes the results of calibration measurements for a Bonner sphere spectrometer (BSS) with 3He proportional counter performed in quasi-monoenergetic neutron fields at the Research Center for Nuclear Physics (RCNP) at the University of Osaka, Japan. Using 246 MeV and 389 MeV proton beams, neutron fields with nominal peak energies of 244 MeV and 387 MeV were generated via 7Li(p,n)7Be reactions. At high energies, the neutron spectra were measured by means of the time-of-flight (TOF) method. The low-energy part of the neutron spectra were determined by BSS measurements down to thermal energies using the MSANDB unfolding code and three different sets of response functions. These were obtained by means of Monte Carlo (MC) calculations including various codes and intra-nuclear cascade (INC) models. Unfolded BSS fluence rates were additionally confirmed by GEANT4 calculations. For calibration of the BSS, measured count rates were corrected for low-energy contributions and compared with count rates calculated using TOF data and various response functions. In addition, measured response values were compared with mono-energetic response calculations, and best agreement was found with GEANT4 results using the Bertini INC model.
AU  - Pioch, C.
AU  - Mares, V.
AU  - Rühm, W.
AU  - Iwase, H.*
AU  - Iwamoto, Y.*
AU  - Sato, T.*
AU  - Hagiwara, M.*
AU  - Satoh, D.*
AU  - Nakane, Y.*
AU  - Nakashima, H.*
AU  - Sakamoto, Y.*
AU  - Yashima, H.*
AU  - Matsumoto, T.*
AU  - Masuda, A.*
AU  - Nishiyama, J.*
AU  - Itoga, T.*
AU  - Theis, C.*
AU  - Feldbaumer, E.*
AU  - Jägerhofer, L.*
AU  - Tamii, A.*
AU  - Hatanaka, K.*
AU  - Nakamura, T.*
C1  - 6654
C2  - 29044
TI  - Calibration of a Bonner sphere spectrometer in quasi-monoenergetic neutron fields of 244 and 387 MeV.
JO  - J. Instrum.
VL  - 6
IS  - 10
PB  - IOP PUBLISHING LTD
PY  - 2011
SN  - 1748-0221
ER  -