Gpixel GSENSE400 BSI Pulsar - Grades¶
The large GSENSE400 BSI Pulsar sensors from Gpixel offer 4 Mpix resolution and exceptionally high sensitivity in the Extreme Ultraviolet (XUV or *EUV) wavelength range.
In the XIMEA portfolio they are offered as MJ042MR-GP-P11-BSI-UV and come in various quality grades.
Backside illuminated Pulsar sensor grades¶
Besides, the undefined defects for the Engineering sample grade of the sensor, there are two other grades with the following maximum allowed defect levels:
| Grade 1 | Grade 2 | |||
| Total Defect Pixel | 30 | 50 | ||
| Cluster (3x3) | 1 | 3 | ||
| Cluster (5x5) | 0 | 1 | ||
| Cluster (>5x5)* | 0 | 0 | ||
| Defect row/column (Total) | 0 | 3 | ||
| 2 Adjacent rows/columns (Total) | 0 | 0 | ||
| >2 Adjacent rows/columns (Total) | 0 | 0 |
Note: Any cluster with a size >25 pixels is considered as a cluster, >5x5.
Gpixel only guarantees these values under Rolling shutter HDR mode with PGA gain of 1.29x for low gain and 7.25x for high gain respectively with off-chip PLL.
Additional notes¶
This is a very special camera. It uses a 2k x 2K sCMOS sensor with 11 micron pixels.
To reduce the thermal noise this large format sensor is coupled with TEC Peltier cooling.
The large aperture of the camera, together with the sCMOS architecture (low read noise), and the cooling, plus the readout technology of 2x 12 bit provides superior images at extremely low light levels and with 16 bit dynamic range.
The camera body is extended by a standard DN 63 CF vacuum flange.
Additional flange formats are available upon demand.
The interface to a host computer is simple USB3 with the possibility to provide additional power through a Power injector.
Given the facts above, each camera is meticulously hand-crafted.