  |
X-Ray Polarimetry Workshop SLAC, Stanford, California 9-11 February 2004 |
| NASA Site Home | | SLAC Site Home | | Talks on the Web | | Poster (PDF) | |
Proportional counter with 7um carbon fiber and detection of X-ray polarization
Motoki
Nakajima
nakajima@crab.riken.go.jp
Tatehiro Mihara, Toru Tamagawa, Ikuya Sakurai, Mitsuhiro Kohama
We report the simple X-ray polarimeter, using one dimensional position sensitive proportional counter (1DPSPC) with thin anode wire. One of the methods to detect the X-ray polarization is measuring the distribution size of photo-electrons in a gas. To observe the expansion of photo-electron cloud, a gas chamber is needed to have enough precision in position resolution. It is knwon that the position resolution of 1DPSPC depends on resistance noise of anode wire. To improve the position resolution, we selected carbon fiber of 7um diameter for anode. In our poster, we present the performance of the detector, and we succeed to describe the formula of position resolution we derived.
|
For more information, contact
Jennifer Formichelli |
||
 |
 |
|