| Project/Area Number |
06680470
|
|---|
| Research Category |
Grant-in-Aid for General Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
エネルギー学一般・原子力学
|
|---|
| Research Institution | KYUSHU UNIVERSITY |
|---|
Principal Investigator |
MATOBA Masaru Kyushu University, Faculty of Engineering, Professor, 工学部, 教授 (60037827)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
NOHTOMI Akihiro Khyshu University, Faculty of Engineering, Research Associate, 工学部, 助手 (80243905)
|
|---|
| Project Period (FY) |
1994 – 1995
|
| Project Status |
Completed (Fiscal Year 1995)
|
| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1995: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1994: ¥1,600,000 (Direct Cost: ¥1,600,000)
|
|---|
| Keywords | Neutron Cross Section / Trajectory angle detection / Two dimensional position sensitive detector / Backgammon read-out / Drift counter / Gas filled detector / 偏極中性子ビーム / 飛跡検出器 |
|---|
| Research Abstract |
In the present research, a charged particle counter-telescope system with wide angular acceptance has been developed for the investigation of the double differential cross section of neutron-induced nuclear reactions. The counter-telescope system is capable of identification of particle sorts, measurement of the total energy and ray-tracing of the passing path.
As a part of this counter-telescope system, a two-dimensional position-sensitive gas counter was newly designed and constructed. In this gas counter, two-dimensional position sensing is achieved with a combination of two different methods for each axis ; one is the charge division method with a backgammon-shaped electrode and the other method is besed on the measurement of electron drift time. The sensitive area is about 100x100 mm^2 and the inherent position resolution has been estimated at 0.75 mm in FWHM.This position-sensitive gas counter has transmission capability. Therefore, angle determination of passing particles is available by the ray-tracing when several such detectors are stacked.
A SSD,48x48 mm^2 sensitive area and 300 mum thickness, was put behind the ray-tracing system to measure the total energy of incident charged particles. A personal-computer based data-acquisition system has been developed with CAMAC electronics. On-line data analysis is possible in this data-acquisition system.
Finally, the practicability of this counter-telescope system was successfully demonstrated at the Tandem Accelerator facility of Kyushu university using about 9 MeV protons which were elastically scattered from a polyethylene target by the neutron beam.
|
