Difference between revisions of "2nCor Equipment"
(→TDC) |
(→TDC) |
||
| Line 31: | Line 31: | ||
==TDC== | ==TDC== | ||
| + | |||
| + | Detector name convention | ||
| + | : BLUT = Beam Left Upstream Top pmt | ||
| + | |||
;TDC channel Map | ;TDC channel Map | ||
{| border="1" | {| border="1" | ||
| Detector || Angle ||TDC channel || NIM-ECL channel|| Patch Pannel # | | Detector || Angle ||TDC channel || NIM-ECL channel|| Patch Pannel # | ||
|- | |- | ||
| − | | BLUT || 135 || | + | | BLUT || 135 ||TDC 16 || in A ch 0 || 223A6 |
|- | |- | ||
| − | | BLUB || 135 || || || | + | | BLUB || 135 || TDC 17 || || 223A7 |
|- | |- | ||
| − | | || || || | + | | BRT|| 270|| TDC 24|| ||223A14 |
|- | |- | ||
| + | | BRB|| 270|| TDC 25|| ||223A15 | ||
| + | |- | ||
| + | |- | ||
| + | | BLDT || 45 ||TDC 26 || in A ch 0 || 223A16 | ||
| + | |- | ||
| + | | BLDB || 45 || TDC 27 || || 223A17 | ||
|} | |} | ||
Revision as of 17:39, 16 March 2015
Detectors
PMTs
http://www.hamamatsu.com/resources/pdf/etd/R580_TPMH1100E.pdf
Scintillators
e+e- spectrometer
DAQ electronics
Signal Processing
Discriminator
CAEN N841
The pulse forming stage of the discriminator produces an output pulse whose width is adjustable in a range from 5 ns to 40 ns. Each channel can work both in Updating and Non-Updating mode according to on-board jumpers position. The discriminator thresholds are individually settable in a range from -1 mV to -255 mV (1 mV step), via an 8-bit DAC. The minimum detectable signal is -5 mV. The back panel houses VETO and TEST inputs, the OR output and the Current Sum output, which generates a current proportional to the input multiplicity, i. e. to the number of channels over threshold, at a rate of -1.0 mA per hit (-50 mV per hit into a 50 Ohm load) ±20%.
NIM-ECL converter
Phillips Model 726
TDC
Detector name convention
- BLUT = Beam Left Upstream Top pmt
- TDC channel Map
| Detector | Angle | TDC channel | NIM-ECL channel | Patch Pannel # |
| BLUT | 135 | TDC 16 | in A ch 0 | 223A6 |
| BLUB | 135 | TDC 17 | 223A7 | |
| BRT | 270 | TDC 24 | 223A14 | |
| BRB | 270 | TDC 25 | 223A15 | |
| BLDT | 45 | TDC 26 | in A ch 0 | 223A16 |
| BLDB | 45 | TDC 27 | 223A17 |