実験報告書様式（装置グループ利用）

Experimental Report

承認日 Date of Approval 2013/11/23
承認者 Approver J. Suzuki
提出日 Date of Report 2013/11/15

実験課題番号 Project No.

装置責任者 Name of Instrument scientist

2012I0015

Jun-ichi Suzuki

実験課題名 Title of experiment

装置名 Name of Instrument/（BL No.）

Commissioning of BL15(TAIKAN)TAIKAN (BL No. 15)

実験責任者名 Name of principal investigator

利用期間 Dates of experiments

Shin-ichi Takata

2012A

40.8days (4/26-11/12)

所属 Affiliation

2012B

25.7days (11/21-2013/4/1)

Japan Atomic Energy Agency (JAEA), J-PARC
１．研究成果概要（試料の名称、組成、物理的・化学的性状を明記するとともに、実験方法、利用の結果得られた主なデータ、考察、結論、図表等を記述してください。
Outline of experimental results (experimental method and results should be reported including sample
information such as composition, physical and/or chemical characteristics.
The small and wide angle neutron scattering instrument TAIKAN (BL15) has been developed tocharacterize microstructures or hierarchical structures precisely and efficiently with a 1 MW
spallation neutron source at the J-PARC. TAIKAN is mainly composed of a set of components:
optical devices, 4 choppers (3 disk choppers and a T0 chopper), a sample stage, a vacuum
scattering chamber, 4 detector banks (small-, middle-, high-, and backward-angle detector banks)with 3He PSD tubes with 8 mm in diameter and about 0.6 MPa in 3He gas pressure. Figure 1 (a)shows the small-, middle-angle detector banks in the vacuum scattering chamber, and thehigh-angle detector bank in the atmosphere. 3He PSD tubes were added on the middle-angle
detector bank in FY2012. The numbers of 3He PSD tubes were increased to 632, 304, and 104 forthe small-, middle-, and high-angle detector banks, respectively. Figure 1 (b) 	  shows thedevelopment view of TAIKAN’s detector arrangement in the present state and the scattering
intensity of the silver behenate(AgBe) as a standard sample at 25
msec after some data corrections.
As seen in Figure 1(b), threediffraction rings from AgBe with thed-spacing of 58.4 Å are clearlyobserved. This means that thecorrections work well.
The characteristic of TAIKAN wasevaluated with a neutron beam.
Figure 2 shows a neutron scatteringprofile of the glassy carbon as astandard sample of with thethickness of 1 mm. The profile wasobtained
withthesmall-,middle-angle,
andbackward
detector banks. The beam size at
the sample position is 8mm×8mm.
Figure 1. (a) A photograph of detector banks for small-,
The neutron wavelength used in
middle-, and high-angle. (b) The development view ofdata analysis is from 0.07 to 0.76
TAIKAN’s detector arrangement in the present state.
nm. Both regions of Guinier andPorod could be observed with only
the small-angle detector bank. The１．研究成果概要（つづき） Outline of experimental results (continued).

diffraction profile was also observed successfully in the q region of about 6 - 160 nm-1 with themiddle-, high-angle, and backward detector banks. It was confirmed that the diffraction isoriginated from the glassy distribution of carbon atoms. On the figure an USAXS profile measured
by Dr. Ilavsky of APS is also plotted in arbitrary unit as a reference. Good agreement between theTAIKAN’s profile and the USAXS profile was confirmed.
In FY2012, some sample environment equipments were prepared. Figure 3 shows a sample
changer, which is mostly used by users. 10 samples set in sample holders can be mounted
simultaneously on the sample changer. The temperature of the samples can be controlled
between 5 and 80 °C at present. A 1 Tesla-electromagnet and a 4K-cryostat were prepared for theexperiment of magnetic materials.

Figure 2. Scattering profile of glassy carbon.

必要に応じて、A4 サイズの用紙に続きを記入して下さい。
Figure 3. Photographs of a sample changer.
Please use A4-size papers for further reporting, if necessary.