Literature for American Power Conference
Recent experimental work of the Toulouse-Argonne collaboration has opened the perspective of a focusing gamma-ray telescope operating in the energy range of nuclear transitions, featuring unprecedented sensitivity, angular and energy resolution. The instrument consists of a tunable crystal diffraction lens situated on a stabilized spacecraft, focusing gamma-rays onto a small array of Germanium detectors perched on an extendible boom. While the weight of such an instrument is less than 500 kg, it features an angular resolution of 15 in., an energy resolution of 2 keV and a 3 {sigma} narrow line sensitivity of a few times 10 {sup {minus}7} photons s{sup {minus}2} cm {sup {minus}2} (10 {sup 6} sec observation). This instrumental concept permits observation of any identified source at any selected line-energy ;in a range of typically 200 keV to 1300 keV. The resulting ``sequential`` operation mode makes sites of explosive nucleosynthesis natural scientific objectives for such a telescope: The nuclear lines of extragalactic supernovae ({sup 56}Ni, {sup 44}Ti, {sup 60}Fe) and galactic novac (p{sup {minus}}p{sup +} line, {sup 7}Be) are accessible to observation, one at a time, due to the erratic appearance and the sequence of half-lifes of these events Other scientific objective include the narrow 511 keV line from galactic broad class annihilators (such as 1E1740-29, nova musca) and possible redshifted annihilation lines from AGN`s.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 95566
- Report Number(s):
- ANL/ITD/CP-86194; CONF-950282-Add.; ON: DE95011821
- Resource Relation:
- Conference: 3. international symposium on productivity and quality improvement conference, Vienna, VA (United States), 27 Feb - 1 Mar 1995; Other Information: PBD: Apr 1995
- Country of Publication:
- United States
- Language:
- English
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