Design, Calibration and Sensitivity of Passively-Anti (pac) Gamma-Ray Telescope
Abstract
A new type of gamma-ray telescope, which uses a passive shield to anti-collimate the main detector, has been designed and calibrated. The telescope consists of two NaI (Tl) crystals, separated along the axis of the telescope. A Pb shield is also located along the axis of the telescope, between and equidistant from the two detector crystals, to define the angular field of view. The prototype telescope sensitivity is 0.0024/sq cm per sec at 0.662 MeV, at 3 sigma for 1 hr.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- 1981
- Bibcode:
- 1981ICRC....8...10B
- Keywords:
-
- Collimation;
- Gamma Ray Telescopes;
- Calibrating;
- Design Analysis;
- Electromagnetic Shielding;
- Ionic Crystals;
- Sodium Iodides;
- Astronomy;
- COLLIMATION;
- GAMMA RAY TELESCOPES;
- CALIBRATING;
- DESIGN ANALYSIS;
- ELECTROMAGNETIC SHIELDING;
- IONIC CRYSTALS;
- SODIUM IODIDES