Alanine dosimetry ESR(EPR) equipment

ESR X10SA Version2

Alanine molecule

Amino group (NH2-) in the molecule comes off by high energy irradiation and I become radical and show a special ESR spectrum. The method of estimating the exposed dose measuring this amount of the radical is called ESR dosimeter.

Features

• Portable ESR device with very compact size (28(W) x 26(D) x 35(H)cm), and portable ESR device, easy to use on the site.
• Measurement sensitivity higher than standard type X band ESR system.
• The use of rare-earth magnets and other materials has made it possible to achieve a compact size weighing only about 27 kg.
• It can be used for process monitoring, desktop ESR sensor using a handheld PC, remote control, etc.
• Conforming JIS Z4571 standard.

Measurement by PC

Once the PC is connected and the power is turned on, the "Resonator Adjusting Window" will automatically appear and the measurement operation will start.

		Mesurement window

• After adjusting the resonance characteristics in the "Resonator Adjust Window" and setting the measurement conditions in the "Condition Setting Window", all control is performed in "Measurement Window".
• You can set up totalization, blank data, and its correction, etc. according to your purpose.
• Moving average can be selected.
• Data processing (peak height h, single & double integration, etc.) can be specified.
• Read the target point with the cursor line. (See figure)
• The magnetic field strength can be automatically corrected by the Mn2+ signal position.

Example of measuring alanine origin radical

Making of ESR spectrum and noise by multiplication measurement of unirradiation and alanine film that irradiates 26Gy (3 times and 50 times) (GAIN x 1000) decrease		(document)Excerpt from industrial Tokyo metropolitan technological laboratory research report the 7th (2004) and 49-56

Specification