title: Effect of oxygen deficiency on response of CR-39 on board scientific balloons.
abstract: We should be careful about the effect of oxygen deficiency on polymeric track detectors even at balloon altitude. Results of balloon experiments and calibration experiments in a vacuum chamber at different pressures show that the effect of oxygen deficiency becomes serious at a pressure below 10 hPa.
authors.affiliation: Faculty of Engineering, Aomori University, 2-3-1 Kobata, Aomori 030-0943, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Fujii
authors.forename: Y
authors.initials: Y
authors.lastname: Hatano
authors.forename: A
authors.initials: A
authors.lastname: Osawa
authors.forename: T
authors.initials: T
authors.lastname: Saito
authors.forename: K
authors.initials: K
authors.lastname: Yamamoto
authors.forename: T
authors.initials: T
authors.lastname: Hasebe
authors.forename: T
authors.initials: T
authors.lastname: Nakamura
authors.forename: H
authors.initials: H
authors.lastname: Sasaki
authors.forename: T
authors.initials: T
authors.lastname: Yanagita
authors.forename: M
authors.initials: M
authors.lastname: Aglietta
authors.forename: S
authors.initials: S
authors.lastname: Vernetto
authors.forename: A
authors.initials: A
authors.lastname: Castellina
authors.forename: W
authors.initials: W
authors.lastname: Fulgione
authors.forename: O
authors.initials: O
authors.lastname: Saavedra
authors.forename: G C
authors.initials: GC
authors.lastname: Trinchero
mesh_terms: D000531:Altitude; D001274:Atmospheric Pressure; D001315:Australia; D003359:Cosmic Radiation; D010100:Oxygen / Q000737:chemistry*; D010969:Plastics / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000295:instrumentation*; D011874:Radiometry; D012802:Sicily; D013026:Space Flight / Q000295:instrumentation*; D014618:Vacuum
chemical_list: D010969:Plastics; D011108:Polymers; C028827:CR 39; D011092:Polyethylene Glycols; D010100:Oxygen