Topic
Mark I
About: Mark I is a research topic. Over the lifetime, 4 publications have been published within this topic receiving 20 citations.
Papers
TL;DR: A lead-glass wall, consisting of 318 leadglass Cherenkov shower counters and three wire spark chambers, has been added to one octant of the SPEAR Mark I Magnetic Detector as mentioned in this paper.
Abstract: A "Lead-Glass Wall," consisting of 318 lead-glass Cherenkov shower counters and three wire spark chambers, has been added to one octant of the SPEAR Mark I Magnetic Detector. The wall covers a solid angle of approximately 6% of 4? steradians and has been used to identify and measure the energies of electrons and photons produced in electron-positron collisions. The design, calibration, gain-monitoring, and performance of the system are described.
11 citations
13 Nov 1997
6 citations
TL;DR: In this article, surface barrier detectors were fabricated from 10-ohmcm p-type silicon with a diffused phosphorus n-layer parallel to the active surface and 12 mu or 1 mu below the surface.
Abstract: Surface barrier detectors were fabricated from 10-ohmcm p-type silicon with a diffused phosphorus n-layer parallel to the active surface and 12 mu (Mark I) or 1 mu (Mark II) below the surface. The pulse-height spectra for various alpha emitters obtained with the Mark I detector are presented. An extrapolation of the Mark I data to zero corresponds to about 3 Mev, which is consistent with the energy loss of an alpha particle in 12 mu of silicon. The measurement of the precise shape of the Mark II detector curve was not performed. (B.O.G.)
6 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 1997 | 1 |
| 1978 | 1 |
| 1977 | 1 |
| 1960 | 1 |