Junction-FET dosimeter

Journal Article · Thu Apr 01 04:00:00 EST 1976 · J. Appl. Phys., v. 47, no. 4, pp. 1732-1734

DOI:https://doi.org/10.1063/1.322763· OSTI ID:4048730

Tomimasu, T; Yamazaki, T

The performance of a new junction-FET dosimeter and its application to the beam profile measurement are presented. One of the two junction FET's making up an astable multivibrator is used as a small-size (approx.0.4x0.4 mm) high- level dose detector. The irradiated dose can be estimated by the amount of the decrease of the oscillator period of the multivibrator. The distinct advantages in its small size and superior resistive property to radiation effect enable us to measure the cross-sectional profile of the electron beam from a linac with high spatial resolution of about 0.4 mm.

• Research Organization: Electrotechnical Laboratory, Tanashi, Tokyo, Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-029236
• OSTI ID: 4048730
• Journal Information: J. Appl. Phys., v. 47, no. 4, pp. 1732-1734, Journal Name: J. Appl. Phys., v. 47, no. 4, pp. 1732-1734; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

*BEAM MONITORS-- SEMICONDUCTOR DETECTORS
*ELECTRON BEAMS-- BEAM MONITORING
*SEMICONDUCTOR DETECTORS-- PERFORMANCE
440101* --Instrumentation--Radiation Instrumentation-- General Detectors & Monitors
BEAM PROFILES
ELECTRON DOSIMETRY
FIELD EFFECT TRANSISTORS
LINEAR ACCELERATORS
MULTIVIBRATORS
N46110* --Instrumentation--Radiation Detection Instruments-- General Detectors & Monitors
N54200 --Particle Accelerators--Auxiliaries & Components
RADIATION DOSES
RADIATION MONITORING
SEMICONDUCTOR JUNCTIONS