title: Some recent measurements onboard spacecraft with passive detector.
abstract: Several passive detectors were used to estimate dosimetry and microdosimetry characteristics of radiation field onboard spacecraft, namely: thermoluminescent detectors (TLDs), mainly to appreciate the contribution of radiation with low-linear energy transfer (LET); Si diode, to try to establish the contribution of fast neutrons; an LET spectrometer based on the chemically etched polyallyldiglycolcarbonate etched track detectors (PADC-TEDs). Detectors have been exposed onboard MIR and International Space Station (ISS) since 1997, they were also used during the MESSAGE 2 biological experiment, October 2003. The results are presented, analysed and discussed. Particular attention is devoted to the possibility of estimating neutron contribution based on data obtained with PADC-TED spectrometer of LET.
authors.affiliation: Department of Radiation Dosimetry, Nuclear Physics Institute, Na Truhlárce 39/64, 180 86 Praha 8, Czech Republic. spurny@ujf.cas.cz
authors.forename: F
authors.initials: F
authors.lastname: Spurný
authors.forename: I
authors.initials: I
authors.lastname: Jadrníĉková
mesh_terms: D018480:Astronauts; D003359:Cosmic Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005214:Fast Neutrons; D016273:Occupational Exposure / Q000032:analysis*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods; D011835:Radiation Protection / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D012680:Sensitivity and Specificity; D018531:Spacecraft; D014159:Transducers