Testing SHMS Preshower
From HallCWiki
Status
- The SHMS Calorimeter has been cabled with signal and HV.
- Have checked setting each channel to 1400V that signal is seen.
- Altered voltages within SHMS Calorimeter to match around 50 mV per tube.
- Added external PMT's across top of calorimeter, 6 in total,
- 06/28 Taking data for number of events through calorimeter and external PMT's
- 07/10 Added diagram of Modules and Live connections
- 07/18 Added plots of SHMS Cal. data
Computer Setup
- Computer is called cnu. The account is gep5.
HV Setup
- Can control the CAEN 403 through terminal on cnu.
- Open terminal
- type "su" to login as superuser.
- type "minicom"
- Listing of the HV setting and cable numbering for the preshower and scintillators
- Preshower HV for Neg and for Positive side on July 30th at 4:41
Event Data
- Coincidence data between SHMS Cal and external PMTs Hits per hour
- Diagram of modules used for collecting coincidence data Module Diagram
- Voltage versus PMT# plots for the negative and positive sides of the calorimeter. plot
Data taking Log
| Run number | Start Date/Time | Trigger | PreShower Threshold | Scintillator Threshold | End Date/Time | Events | HV figure | Comments |
|---|---|---|---|---|---|---|---|---|
| 34 | July 30th 17:53:19 | P1 && P14 | 20mV | N/A | July 31st 09:29:09 | 368 | Pos HV] | TDC range 1024ns (250ps/ch) |
| 35 | July 31st 09:37:27 | P1 && P2 | 20mV | N/A | July 31st 10:29:10 | 2178 | Pos HV] | TDC range 1024ns (250ps/ch) |
| 36 | July 31st 14:29:14 | P1 && P2 | 20mV | N/A | July 31st 14:35:00 | 144 | Pos HV] | TDC range 1024ns (250ps/ch power outage ending run) |
| 37 | July 31st 14:38:13 | P1 && P2 | 20mV | N/A | July 31st 14:56:13 | 738 | Pos HV] | TDC range 1024ns (250ps/ch) |
| 38 | July 31st 15:26:35 | P1 && P5 | 20mV | N/A | July 31st 15:47:02 | 119 | Pos HV] | TDC range 280ns (70ps/ch) power outage ending run |
| 40 | July 31st 19:43:43 | P1 && P5 | 20mV | N/A | Aug 1st 10:24:51 | 6367 | Pos HV] | TDC range 280ns (70ps/ch) |
| 41 | Aug 1st 10:33:25 | P1 && P2 | 20mV | 50mV | Aug 1st 11:04:16 | 1240 | Pos HV Scint HV | TDC range 280ns (70ps/ch) Added scintillators to the TDC with threshold = 50mV |
| 42 | Aug 1st 11:07:31 | P1 && P2 | 20mV | 50mV | Aug 2nd 9:38:29 | 55941 | Pos HV Scint HV | TDC range 1024ns (250ps/ch) |
| 43 | Aug 2nd 9:52:34 | P1 && P2 | 15mV | 40mV | Aug 2nd 11:46:39 | 9183 | Pos HV] Scint HV | TDC range 1024ns (250ps/ch) |
| 44 | Aug 2nd 11:55:03 | P1 && P2 | 10mV | 30mV | Aug 2nd 15:02:54 | 28155 | Pos HV] Scint HV | TDC range 1024ns (250ps/ch) |
| 45 | Aug 2nd 15:45:12 | P1 && P2 | 10mV | 30mV | Aug 2nd 17:26:06 | 26089 | Updated Pos Preshower HV Scint HV | TDC range 1024ns (250ps/ch) raised HV for bars 1,2,11 & 14 |
| 46 | Aug 2nd 17:48:46 | P1 && P6 | 10mV | 15mV | Aug 3rd 11:09:04 | 33524 | Run 45 Preshower HV Scint HV | TDC range 1024ns (250ps/ch) |
| 47 | Aug 3rd 11:10:29 | P1 && P14 | 10mV | 15mV | Aug 3rd 14:43:08 | 1090 | Run 45 Preshower HV Scint HV | TDC range 1024ns (250ps/ch) |
| 48 | Aug 3rd 14:47:49 | P2 && P14 | 10mV | 15mV | Aug 3rd 17:53:55 | 1243 | Run 48 Preshower HV Run 48 Scint HV | TDC range 1024ns (250ps/ch) Raised PSH1 HV, Scint Bot Mid HV |
| 49 | Aug 3rd 17:54:51 | P2 && P14 | 10mV | 15mV | Aug 6th 10:24:59 | 25869 | Run 49 Preshower HV Run 48 Scint HV | TDC range 1024ns (250ps/ch) |
| 50 | Aug 6th 10:33:46 | P2 && P14 | 20mV | 15mV | Aug 7th 09:31:34 | 2593 | Run 49 Preshower HV Run 48 Scint HV | TDC range 1024ns (250ps/ch) |
| 51 | Aug 7th 09:40:47 | P2 && P14 | 10mV | 15mV | Aug 7th 12:27:43 | 1178 | Run 51 Preshower HV Run 52 Scint HV | TDC range 1024ns (250ps/ch) Raised HV on PSH1 & 2 |
| 52 | Aug 7th 12:32:51 | P2 && P14 | 10mV | 15mV | Aug 7th 16:33:46 | 1766 | Run 52 Preshower HV Run 52 Scint HV | TDC range 1024ns (250ps/ch) Raised HV on PSH 3-8, 10 & 11 |
| 53 | Aug 7th 16:38:59 | P2 && P14 | 10mV | 15mV | Aug 7th | Preshower HV Run 52 Scint HV | TDC range 1024ns (250ps/ch) Raised HV on PSH 1,3-8,10 by 25V |
